INSTALLATION AND OPERATING

Transcription

1 INSTAATION AND OPERATING AIRTHERM Air Source Heat Pump 4.5, 9, 2 For users guide see reverse of book When replacing any part on this appliance, use only spare parts that you can be assured conform to the safety and performance specification that we require. Do not use reconditioned or copy parts that have not been clearly authorised by Ideal. For the very latest copy of literature for specification and maintenance practices visit our website where you can download the relevant information in PDF format. SD Issue 5 June 20 UIN A03

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3 Ideal airtherm 4.5, 9 & 2 Air Source Heat Pump Destination Country: GB, IE Contents How the Heat Pump Works... 4 Introduction... 5 Heating with a heat pump... 5 Safety precautions... 5 ocation... 6 Unpacking... 6 Plumbing - pipework... 7 Plumbing - buffer tank and hot water cylinder... 7 Electrical... 8 Electrical Connections... 8 Internal wiring... 8 Electrical Diagrams Internal Machine Circuit Diagrams Frost protection... 3 Control Panel... 3 Commissioning... 4 Handing Over... 4 Fault finding Data sheet... 7 Machine dimensions, access panels and electrical/water connections System designs - S Plan System designs - W Plan System designs - Bivalent installation Refrigeration Diagrams Optional weather compensation Mounting the sensor Wiring of the Optional Weather Compensator Heat Pump and Buffer Installation Req Commissioning Checklist

4 HOW THE HEAT PUMP WORKS The Ideal airtherm Heat Pump provides thermodynamic heating by means of a vapour compression cycle (similar to that employed in a conventional refrigerator), in addition to operating as an active solar collector. The EVAPORATOR collects heat from the outside ambient air, pre-heated by the sun. With Ideal, heat pumps high volumes of outside air are drawn into the unit by the fan and expelled through the evaporator fins. The evaporator has liquid refrigerant passing through it, which is at a considerably lower temperature than the ambient air, therefore the air gives up its heat to the refrigerant, which then vaporizes. This pre-heated vapour now travels to- The COMPRESSOR where it is compressed and upgraded to a much higher temperature. The hot vapour now enters- DOMESTIC PREMISES OUTSIDE AIR The EXPANSION DEVICE and from there, now at low pressure, it is returned to the evaporator and the cycle starts again. The CONDENSER where it is surrounded by water from the heating system. The heat is given up to the cooler water and the now cooler refrigerant returns to its former liquid state but still under high pressure from the compressor. This pressure is released by passing the liquid through - Coefficient of Performance The efficiency of a Heat Pump is usually called its 'Coefficient of Performance' - (C.O.P.) which is simply a ratio of heat output to energy input, both being expressed in kw. Thus a Heat Pump absorbing kw of electricity, collecting 4 kw of energy from the air, and delivering 5 kw of heat to the pool water is said to have a C.O.P. of 5:. Naturally this ratio will vary according to the temperature of the water and the ambient air. 4

5 general INTRODUCTION This installation manual is accompanied by a user guide (see reverse of this book), a commissioning record sheet and a warranty registration card, all of which should be left with the householder. The user guide explains how the system works, how it is controlled and what to do in the event of a problem. The commissioning record sheet must be completed as its production will be required in the event of a warranty claim. heating with a heat pump The Ideal heat pump is designed to operate up to 65 o C water temperature for the domestic hot water delivery, and negates the need for direct electrical heating in the form of an electrical emersion heater. The unit also provides space heating temperatures variable from 35 o C to 55 o C. Heat pumps for domestic heating are a fully proven technology which will give many years of trouble-free service. Ideal Heat Pumps which are MCS approved have been specifically designed for optimum operation in the UK s climate. However, unlike an oil or gas boiler which may be oversized for the heating demand of the property and therefore regularly cycles on and off, a heat pump is closely matched to the heat demand and is designed to run for long periods without switching on/off. The following steps must therefore always be taken to ensure a successful installation. Major problems can occur if they are not taken and failure to comply will invalidate the warranty. a. SAP or equivalent heat loss calculations must be established with the results recorded on the commissioning sheet. b. The heat pump must be correctly sized in relation to the calculated heat losses. c. The space heating system must be capable of satisfying the heat demand at the water flow temperature set for the heat pump. This is particularly important where retro-fitting a heat pump to a radiator system designed originally for a Delta T of 60 o C, as the heat pump will run at a Delta T of 30 o C. In this situation, you will normally need to fit larger radiators. d. The electrical supply must be adequate to meet the start current demand. e. The heat pump and the associated heating system must be commissioned in accordance with the procedures laid down in this manual. A heat pump may be fitted on a stand-alone basis (monovalent system) to satisfy the full heating and hot water demand of the property or in parallel with an existing boiler (bivalent system). In the case of a bivalent installation the heat pump is sized to provide a variable proportion of the annual heating requirement (say 85%) with the existing boiler integrated to deliver the balance on the coldest days. In bivalent systems, the heat pump is sometimes only linked to the space heating system which eliminates the requirement to fit a new DHW cylinder. Standard designs for several different configurations, including plumbing and electrical circuits, are included in this manual. BS EN60335-:2002 &2-40:2003, and therefore comply with the ow Voltage Electrical Equipment Directive 73/23/ EEC;93/68/EC. BS EN ISO 200-:2003, BS EN ISO 200-2:2003, BS EN ISO3857:2008: BS EN ISO 3850:2006, and therefore comply with the Supply of Machinery (Safety) Directive 98/37/ EC. BS EN5504-:2000+A:200+ A2:2002, 4-2:997+A:200, EN :2000, -3-3:995 + A:200, -4-2:995, -4-3:996, -4-4:995, -4-5:995, -4-6:996, -4-:995. and therefore comply with the Electromagnetic Compatibility Directive 2004/08/EC. Comply with the Pressure Equipment Directive 97/23/EC, Fluid Group 2,Category. Compliant to RoHS Directive 2002/95/EC Safety precautions a. The unit must be securely installed on a structure that can sustain its weight. If mounted on an unstable structure, it may fall causing injury or damage. b. If the heat pump is installed in an enclosed area, sufficient ventilation must be provided so as not to impede the air flow through the unit and to prevent the concentration of refrigerant gas in the room building up in the event of a leak. (See diagram - page 6) c. All electrical work must be performed by a qualified technician and comply with the latest I.E.E (7 th ) Regulations. The machine should be installed in accordance with EMC 2004/08/EC. d. Electricity to the unit must be supplied through dedicated power lines and the correct voltage and circuit breakers must be used. Power lines with insufficient capacity or incorrect electrical work may result in electric shock or fire. The electrical ratings of Ideal heat pumps are included in the datasheet on page 6 of this manual. e. Any external heating device fitted to the plumbing circuit of the heat pump must have its own thermostatic control safety cut out. f. Immersion heater elements in any hot water tank must have a built in thermostat. REGUATIONS The Ideal airtherm models confirm 5

6 INSTAATION location The heat pump is suitable for outside installation. a. Select a location where any potential noise disturbance is minimised. b. Provide a firm level base capable of supporting the weight of the machine. Fixing holes are provided for bolting the machine down to the base. c. If wall mounting, ensure that the wall and framework are capable of supporting the machine and use anti-vibration mounts to prevent noise transmission. The weights of the heat pumps are included on the data sheet on page 6 of this manual. cover or enclosure if the machine is installed externally g. Consider fitting a protective guard where the machine could be exposed to vandalism or other damage. h. If installed in a plant room or other building, ensure that the air outlet is positioned directly adjacent to the outside wall with inlet and discharge grilles or apertures of minimum free areas as detailed below. TYPICA INSIDE OR PANT ROOM INSTAATION d. If installing in a location exposed to strong wind, do not face the air outlet of the unit against the direction of the wind as wind entering the unit may impede the normal airflow and result in a malfunction. e. Allow for the minimum clearances around the machine, as shown below, required for unobstructed air flow and access to service panels. A clearance of metre above the unit is recommended for servicing access through the top panel. AIR FOW AIR FOW f. Consider protection from extreme weather conditions with a INCORRECT CORRECT AT963 50mm Grill or apertures MUST comply with Figures (See Table ) AIR INET Table 50mm 500mm Model Minimum Free Area m 2 Inlet Discharge AIR OUTET airtherm airtherm mm AT9630 airtherm UNPACKING. Position the heat pump close to point of installation on a sound flat surface and in an area large enough to unpack the unit. 2. Carefully remove the plastic strapping securing the unit and carton sleeve to the pallet. 3. Fold back the top flaps to gain access to the literature pack. 4. Remove the instructions and read thoroughly before unpacking the product. 5. When ready for installation lift off the cardboard carton sleeve. 6. Carefully remove the unit from the pallet. AT9656 6

7 INSTAATION Plumbing - pipework a. Ideal heat pumps have water flow and return connections as follows: The airtherm 4.5 and 9 models have ¾ BSP parallel, male threads The airtherm 2 has BSP, parallel, male threads b. Couplings suitable for disconnection should be installed with isolating valves on the flow and return of the heat pump to ease installation and maintenance. During the initial installation, these should be the last connections made so as to avoid any stresses on the unit connections. d. The condensate drain at the base of the unit collects the condensation from the evaporator fins. This should be run away to waste from the ¾ PVC pipe on the side of the heat pump. The routing of the drain must be made to allow a minimum fall of in 20 away from the unit, throughout its length. e. Do not allow pipe work to run in front of service panels. f. All pipe work must be adequately supported with allowance for expansion/contraction and should be insulated to avoid unnecessary heat loss. c. A drain valve or plug should be fitted to the lower pipe to facilitate drain down for servicing. Plumbing - Buffer tank and hot water cylinders Refer to Page 3-33 for addition information a. The Ideal air source heat pump is normally designed to operate with a buffer tank which prevents short cycling during normal operation and provides a thermal store to aid defrost of the heat pump. The size of the buffer tank needed varies with the size of the ASHP unit as shown below. b. Where the ASHP is required to supply domestic hot water, a special DHW cylinder (Ideal cylinder) should be purchased with each air to water heat pump. These cylinders have a larger primary coil compared to standard cylinders and are supplied with a special tank thermostat. An immersion heater is fitted for back-up DHW heating and must contain a built in thermostat. HEAT PUMP airtherm 4.5 airtherm 9 airtherm 2 BUFFER TANK CAPACITY 50 s 95 s 50 s c. Where indirect pressurised cylinders are fitted, they should be installed in compliance with the relevant Water Regulations and Building Regulations. 7

8 INSTAATION Electrical a. A separately fused single phase supply is required. With all power switched off, remove the electrics access panel to gain access to the terminals in the electric box. The supply cable, entering the unit through knock outs in the panel, can then be fed through to connect into the live/neutral/earth terminals. b. An MCB type C or D or correctly rated fuse must be used. (Refer to data sheet on page 7 of this manual). c. A local isolator should be fitted within 2 feet of the unit to comply with I.E.E. regulations. Power to the unit is indicated by the red indicator light on the console (mains lamp). d. A separate fused spur is normally used to supply the central heating programmer and controls. e. There are 0 connections to be made between the Ideal heat pump and the control wiring centre. A multi core cable with sufficient capacity will need to be provided and installed. In most cases a 2 core 0.5mm control cable is used. f. The unit may be live even when the mains lamp is off due to live feeds from the external control system. The programmer live light on the control panel confirms the presence of a supply. (See diagram page 3). g. The heat pump can operate in one of two modes, either set as supplied, with the unit biased to hot water, or with no bias for hot water or heating. h. Ideal Boilers would always recommend a system with the heating biased to hot water. However if room heating and hot water heating are required at the same time, the link between terminals and 2 should then be fitted. There is then no bias between room heating and hot water heating. Notes:- i. Where the link is fitted the unit will deliver 65ºC flow temperature during periods of DHW demand and this must be considered at system design with consideration to this temperature feeding radiators or under floor heating at these times. ii. The link cannot be fitted when the heat pump is plumbed in to a W Plan system. Electrical connections a. The electrical connections diagrams are on pages 9 and 0 of this manual. b. The wiring junction box is located behind the access panel below the unit s control panel c. For the heat pump to operate, you must have a live signal into terminal 9 (space heating) and terminal (DHW). Internal Wiring a. Internal wiring diagrams are on pages and 2 of this manual. b. External wiring will depend on the heating system design and is found on pages 22 & 24 of this manual. 8

9 INSTAATION Electrical connections Ideal airtherm 4.5 & 9 MAINS IN MAINS IN N IVE GO SIGNA FOR DHW (IN) CONTRO IVE (OUT) - (CAOREX TEST TERMINA) ROOM HEATING (OUT) COMPRESSOR 'C' COMPRESSOR 'R' COMPRESSOR 'S' DEFROST VAVE DEFROST VAVE FAN N FAN N MAKE EARTH CONNECTION HERE NEUTRA ETH BYPASS ROOM HEATING (OUT) NEUTRA VAVE 3 230/240V DEFROST VAVE ETH IVE GO SIGNA FOR HEATING (IN) IVE OUT SPACE HEATING ZONE VAVE INK FOR SIMUTANEOUS HEATING AND HOT WATER SEE EECTRICA SECTION (PAGE 8) IVE GO SIGNA FOR DHW (OUT) PROGRAMMER DHW PERIOD (IN) BUFFER TANK HEATING DEMAND (IN) IVE GO SIGNA FOR HEATING PUMP W/Y PAN ONY (OUT) HEATING VAVE Y PAN (OUT) PROGRAMMER SIGNA (IN) IVE FEED CONNECTION (Out) (Immersion) SWITCH IVE CONNETION (In) (Immersion heater) Connect to:- Connect to:- Heat Pump Terminal ive Neutral Earth Connections Mains Pow er Supply (Earth Stud) S Plan Connections AW45002/AW9002 External Wiring Connections W Plan Connections AW45002/AW9002 External Wiring Connections ive Go for Programmer for DHW Neutral Earth ive Out Space Heating 5 ive Out Defrost Neutral 7 Earth 8 Programmer ive Calorex Test Terminal 9 ive Go from Programmer for Space Heating ive Out Space Heating Zone Valve 7 7 ink for Simultaneous Space Heating / DHW 2 ink for Simultaneous Space Heating / DHW 3 ive Out DHW Zone Valve 7 4 ive in from Programmer for DHW Time Clock 5 Buffer Tank Stat / Ambient Stat ive in (DHW Only) Internal Connections 24 ive Out Circulating Pump 7 29 Zone Heating Valve (ive out Y Plan Only) 30 ive in from Programmer (Programmer ive amp) Mains Pow er Supply ive Feed Connection (Out) (Immersion) Switch live Connection (In) (Immersion heater) Notes Defrost Terminals Add link if Required 9

10 INSTAATION Electrical connections Ideal airtherm 2 COMPRESSOR 'C' MAINS IN MAINS IN N IVE GO SIGNA FOR DHW (IN) ROOM HEATING (OUT) BYPASS ROOM HEATING (OUT) INK FOR SIMUTANEOUS HEATING AND HOT WATER COMPRESSOR 'R' COMPRESSOR 'S' COMPRESSOR 2 'C' COMPRESSOR 2 'R' COMPRESSOR 2 'S' REVERSING VAVE REVERSING VAVE DEFROST VAVE DEFROST VAVE FAN FAN N VAVE 3 230/240V (DEFROST VAVE) IVE GO SIGNA FOR HEATING (OUT) IVE OUT SPACE HEATING ZONE VAVE VAVE IVE GO SIGNA FOR DHW (OUT) PROGRAMMER WATER PERIOD (IN) BUFFER TANK HEATING DEMAND (IN) IVE GO SIGNA FOR HEATING PUMP W AND Y PAN ONY (OUT) CONTRO IVE (OUT) IDEA TEST TERMINA NEUTRA IQUID INE SHUT OFF N A Y ETH ETH 6 8 A2 MAKE EARTH CONNECTION HERE 4 SEE EECTRICA SECTION (PAGE 8) PROGRAMMER SIGNA (IN) HEATING VAVE Y PAN (OUT) IVE FEED CONNECTION (Out) (Immersion) SWITCH IVE CONNETION (In) (Immersion heater) Connect to:- Connect to:- Heat Pump Terminal ive Neutral Earth Connections Mains Pow er Supply (Earth Stud) S Plan Connections AW2002 External Wiring Connections W Plan Connections AW2002 External Wiring Connections ive Go for Programmer for DHW Neutral Earth ive Out Space Heating 5 ive Out Defrost Neutral 7 Earth Mains Pow er Supply 8 Programmer ive Calorex Test Terminal 9 ive Go from Programmer for Space Heating ive Out Space Heating Zone Valve 7 7 ink for Simultaneous Space Heating / DHW 2 ink for Simultaneous Space Heating / DHW 3 ive Out DHW Zone Valve 7 4 ive in from Programmer for DHW Time Clock 5 Buffer Tank Stat / Ambient Stat ive in (DHW Only) Internal Connections 24 ive Out Circulating Pump 7 29 Zone Heating Valve (ive out Y Plan Only) 30 ive in from Programmer (Programmer ive amp) Internal Connection ive Feed Connection (Out) (Immersion) Switch live Connection (In) (Immersion heater) Notes Defrost Terminals Add link if Required 0

11 INSTAATION Internal machine circuit diagram - airtherm 4.5 and 9 TB TB (N/C) 8 R2 IVE GO SIGNA TB 0 FOR HEATING R8 TB A R2 A2 R (N/C) (N/C) R2 A R5 A2 TB 7 4 R5 R4 HP SWITCH 400PSI AUTO RESET BREAKS TO '' ON R2 (N/C) PRESSURE RISING 7 4 C H (N/C) A2 R A NEUTRA TB ON SMART STARTER A2 COMPRESSOR R9 A N 2 SMART STARTER COMPRESSOR RC N R S RUN CAP COMPRESSOR 2 6 INK FOR SIMUTANEOUS HOT WATER AND HEATING DIG STAT 5 4 R3 8 R R8 8 5 PROGRAMMED TIMED TB4 WATER R7 PERIOD (N/C) 9 3 R7 IVE GO SIGNA 8 5 FROM ROOM STAT TB 9 FOR HEATING BUFFER TANK HEATING DEMAND TB5 A2 R8 A2 A2 R7 R3 N A A A IVE GO SIGNA FOR HOT WATER FROM STAT DEMAND 9 9 TB3 IVE GO SIGNA (N/C) FOR WATER HEATING 2 R4 7 4 R4 9 6 TB29 TB30 (RED) PROGRAMMER IVE PRESENT 9 6 R3 NEUTRA IVE GO SIGNA FOR HEATING PUMP ON Y AND W PAN ONY TB FAUT AMP (AMBER) PROBE 0 2 OUT OUT2 DIG STAT 2 STAGE MAKE ON FA TECNOOGIC HP SWITCH 430PSI C BREAKS TO '' ON PRESSURE RISING A2 H (N/C) R0 A MAINS AMP (RED) 5A FUSE PF CAP R9 R9 (N/C) (N/C) 3 RESISTOR 00 OHM DEFROST THERMOSTAT BYPASS ROOM (N/C) HEATING R6 TB DEFROST VAVE 9 20 DEFROST AMP (GREEN) A R6 A2 A R4 A2 R8 R7 ROOM HEATING TB (N/C) FAN 2 22 FAN CAP EECTRIC BOX EARTH STUD R TO Y PAN HEATING VAVE FROM PROGRAMMER TB 34 TB 35 TB 36 ABOVE 2ºC (N/C) 2 P (N/C) R5 TB R AMBIENT STAT MAKE ON OW TEMP -2ºC to 2ºC VOT FREE TERMINAS FOR BUFFER TANK IMMERSION HEATER (Thermostatic type) SMART STARTER BUIT IN DEAYS. ON POWER UP/INTERRUPTION OR GO SIGNA OFF COMPRESSOR MOTOR DOES NOT START UNTI 3 MINUTES HAVE EAPSED. 2. IF COMPRESSOR MOTOR DOES NOT START A FURTHER 5 MINUTES NEED TO EAPSE BEFORE RESTART BY SMART STARTER IS ATTEMPTED. C SAFETY WARNING WITH BUFFER TANK THERMOSTATIC IMMERSION HEATING. THE IMMERSION THERMOSTAT MUST BE WIRED IN SO THAT IT CUTS OUT IMMERSION HEATER ON OVER TEMPERATURE, MAX SETTING 55 deg C P 4 6 R S 5A MAX SWITCHING AC AMBIENT AIR THERMOSTAT OPTION RANGE -2º TO +2ºC

12 INSTAATION Internal machine circuit diagram - airtherm 2 TB 35 IVE GO SIGNA TB FOR HOT WATER TB 36 FROM STAT DEMAND AMBIENT AIR THERMOSTAT OPTION RANGE -2ºC to 2ºC TB R2 A2 A R6 (N/C) 5 2 R2 TB 2 IVE GO SIGNA TB 0 FOR HEATING R8 (N/C) (N/C) R3 R2 R4 A2 A C H (N/C) HP SWITCH NEUTRA NEUTRA A2 TB TB R5 N A2 A R 8 5 MC B R IVE GO SIGNA TB FOR HEATING PUMP 24 ON Y AND W PAN ONY 7 4 MC B OUT OUT3 OUT2 R4 DIG STAT R4 3 STAGE 24 MAKE ON 8 2 FA DEFROST VAVE SEE NOTE ABOVE SMART STARTER COMPRESSOR SMART STARTER RC RC COMPRESSOR 2 S R R N N S A2 ON ON R2 SMART STARTER COMPRESSOR N SMART STARTER COMPRESSOR N COMPRESSOR COMPRESSOR SAFETY WARNING WITH BUFFER TANK THERMOSTATIC IMMERSION HEATING. THE IMMERSION THERMOSTAT MUST BE WIRED IN SO THAT IT CUTS OUT IMMERSION HEATER ON OVER TEMPERATURE, MAX SETTING 55 deg C RUN CAP 8 3 C DIG SUPPY STAT R2 TB 3 MAINS AMP (RED) 5A FUSE 3 4 R6 BYPASS ROOM TB 5 HEATING 4 7 DEFROST AMP (GREEN) FAN FAN CAP P 5 INK FOR SIMUTANEOUS HOT WATER AND HEATING TB TB IVE GO SIGNA FOR WATER HEATING R9 9 6 (RED) PROGRAMMER IVE PRESENT R9 7 4 R9 R6 PROGRAMMED TIMED WATER PERIOD psig AUTO-RESET R8 8 5 HP SWITCH TB 4 430psig R7 FAUT (N/C) MANUA AMP 9 3 H RESET (AMBER) R7 IVE GO 8 5 SIGNA FROM ROOM STAT TB 9 R3 BUFFER 9 6 TANK TB 5 HEATING A2 A2 A2 DEMAND R8 R7 R3 A A A A A2 R0 A TB R5 PROBE R5 R5 DEFROST THERMOSTAT RESISTOR 00 OHM PF CAP SMART STARTER BUIT IN DEAYS. ON POWER UP/INTERRUPTION OR GO SIGNA OFF COMPRESSOR (N/C) R R (N/C) 3 MOTOR DOES NOT START UNTI 3 MINUTES HAVE EAPSED. 2. IF COMPRESSOR MOTOR DOES RESISTOR NOT START A FURTHER 5 MINUTES 00 OHM NEED TO EAPSE BEFORE RESTART BY SMART STARTER IS ATTEMPTED. AMBIENT STAT MAKE ON OW TEMP -2ºC to +2ºC MAKES ON SUCTION TEMP ABOVE -5 DEG H () TECASA (SOPAC JAEGER) (2) A VOT FREE TERMS FOR BUFFER TANK IMMERSION HEATER (Thermostatic type) R A2 A EEC BOX EARTH STUD TO Y PAN HEATING VAVE FROM PROGRAMMER TRANSFORMER (N/C) (N/C) (N/C) 8 5 (N/C) A FUSE 2V 230V PF R CAP R0 R0 (N/C) (N/C) BREAKS ON R9 COMPRESSOR A A2 DISCHARGE PIPE TEMP ABOVE R6 RUN A A2 5 DEG CAP R8 R7 ROOM TB 4 HEATING A 4 MIN A2 DEAY ON TIMER IQUID INE SHUT OFF VAVE (5T) 3 33 IQUID INE SHUT OFF VAVE (3T) 32 N PE EEC BOX EARTH STUD WHITE 0,5mm WIRE INK IN TERMINA BOX TO BE FAN EECTRICA CONNECTIONS C P BUE GRN/YE BROWN TB 34 ABOVE 2ºC (N/C) 2 P ADDED TW TW N 9 6 5A MAX SWITCHING AC 2

13 INSTAATION Frost Protection Frost protection of the heating circuit is essential. We recommend the use of a combined inhibitor/anti-freeze, either Fernox Alphi or Sentinel X500. The manufacturers recommendations on concentration should be followed. A minimum concentration of 5% to 20% is needed to avoid any risk of corrosion. A 30% concentration gives frost protection down to -5 o C, the minimum operating temperature for the ASHP. When an inhibitor/anti-freeze is used, the water flow and pressure drop need to be increased to the levels shown below. airtherm 4.5 airtherm 9 airtherm 2 Water flow +/-20% s/min Pressure drop (water) Metres head Correct water flow is essential for reliable operation of the heat pump. Using the information in the table above and total system pressure drop the selection of an appropriate water circulation pump can be made. Consult water circulation pump manufactures data sheets for accurate water pump performance. When the correct water pump has been selected a Delta T of 3 o C to 5 o C between water in-let to outlet temperature indicates correct flow rate. Where frost protection is provided by the thermostats that control the unit, the water flow and pressure drop should be set to the values shown in the data sheet on page 7 of this manual. control panel All units have integral safety devices to protect the heat pump from integral and external faults and indicator lamps showing operating mode. An adjustable digital thermostat controls space heating and return water temperature. Also a three minute cycle time delay which protects the compressor is incorporated. 2 The control panel is located on the right side of the unit under the upper removable steel panel.. To access, carefully remove the plastic screw covers and the screws and washers beneath. Place these to one side, ready for re-assembly. 2. Slide the controls cover from the upper location slots and place to one side. 3. Re-assembly is in reverse order, taking care to use the washers correctly to enable the screw caps to be replaced. EGEND A A Space Heating Temperature Controller B Mains amp (red) C Defrost amp (Green) U P IF IGHT SHOWS, PRESS RED BUTTON E D Programmer ive amp (red) HEATING ºC E High Pressure Switch Manual Reset F Fault amp (amber) (contact service engineer if high pressure reset does not clear fault) POWER PROGRAMMER DEFROST IVE HEAT PUMP at9633 B D C F 3

14 INSTAATION Commissioning a. Ensure that all water circuits are clean, purged, leak tested, fully de-aerated and correctly balanced. b. Add inhibitor/anti-freeze in the correct concentration to ensure frost protection. This is essential, unless frost protection is ensured by thermostats. c. The control panel for the air source heat pump is located under a secure cover on the right hand side of the machine. d. Check that all wire connections are correctly made and tight e. Switch on power at the distribution board and check that there is mains power to the unit. f. Check that the control system is switched on and that the red programmer live lamp is lit. The space heating temperature controller is used to adjust the return water temperature from the space heating system. For maximum economy, this should be set to the lowest acceptable level. The setting is adjusted by first pressing and then releasing button P followed by pressing the up or down arrow buttons to display the required temperature. Button P should be pressed again to confirm your settings. After 5 seconds the display will revert to the actual water temperature. The amber fault lamp indicates a possible problem in the system. This may be cleared by the manual reset of the high pressure switch (red recessed button). If the fault proves difficult to clear, check that all plumbing and electrical connections are made in accordance with this manual and that the system characteristics required in the data sheet on page 6 of this manual (water flow rates etc) have been achieved. The green defrost lamp is illuminated when the heat pump is defrosting. g. DHW system tests i. Set the programmer to DHW and set the cylinder stat to the required temperature ii. Switch the heat pump on. When first turned on, the machine will go into defrost with the compressor running, the fan off and the green light on. This defrost cycle will run for about 4 minutes. iii. Check that the system valves operate correctly iv. Check for an increase of 2-3 o C in the return water temperature displayed on the unit control panel. This will confirm that the system is working. h. Central heating system tests i. Set the programmer to central heating. ii. Turn the room thermostat up to 30 o C, at which point the water circulating pump should start followed by the compressor and fan. Note; there may be a time delay of 6 mins before the compressor starts - this is normal. iii. Check that the system valves operate correctly iv. Check for an increase in the return water temperature and for an increase in the radiator temperatures. The initial heat-up of an under floor system will take many hours. v. Once the system is running correctly, turn any thermostatic radiator valves to the required settings and set the room thermostat to 2/22 o C. i. Check that the chosen electricity tariff provides the optimum economy in relation to the occupant s lifestyle and heating demand. When replacing electric storage radiators, note that the Economy 7 or equivalent tariff may not be appropriate for the economic operation of an air source heat pump. j. Check that the time clock is set to suit the occupant. Where a controller is fitted which features multiple time/temperature periods, set these individually to suit the occupant. k. Ensure that all service panels are securely fitted with the tamper proof screws. l. A fault finding chart is provided on page 5 of this manual. m. Complete the commissioning sheet on page 34 of this manual. HANDING OVER a. Hand the user instructions to the householder and explain his/her responsibilities under the relevant regulations. b. Explain the start and shut down procedures. c. The operation of the heat pump and the use and adjustment of all system controls should be fully explained to the householder, to ensure the greatest economy consistent with heating and hot water household requirements. f. oss of system water pressure - Explain that the system pressure gauge indicates the central heating system pressure and that if the normal COD pressure of the system is seen to decrease over a period of time then a water leak is indicated. Explain the re-pressurising procedure and if unable to re-pressurise or if the pressure continues to drop a registered local heating installer should be consulted. d. Advise the user of the precautions necessary to prevent damage to the system and heat pump. e. Explain the function of pump fault light. 4

15 INSTAATION FAUT FINDING a. The user checklist below should be carried out before initiating a service call. b. Do not attempt to interfere with any internal control settings as these have been factory calibrated and sealed. c. If in doubt or if advice is required, contact the Ideal Service department on AMP ACTION UNIT DOES NOT OPERATE POWER RED OFF FAUT DEFROST AMBER GREEN OFF OFF Check mains supply - external fuses - isolator etc. PROGRAMMER IVE RED OFF MAINS RED ON FAUT DEFROST AMBER GREEN OFF OFF Check supply to programmer PROGRAMMER IVE RED OFF POWER RED ON FAUT DEFROST PROGRAMMER IVE AMBER GREEN RED ON OFF ON Check water and air flows are not restricted Check Heating pump(s) FAN OFF COMPRESSOR ON POWER RED ON FAUT DEFROST PROGRAMMER IVE AMBER GREEN RED OFF ON ON Unit on defrost Check evaporator is clean NO ROOM HEATING OR HOT WATER - UNIT NOT OPERATING POWER RED ON FAUT DEFROST PROGRAMMER IVE AMBER GREEN RED OFF OFF ON Is programmer set to an "ON" period Check input in terminal or 9 NO ROOM HEATING OR HOT WATER - UNIT OPERATING POWER RED ON FAUT DEFROST AMBER GREEN OFF OFF Check domestic heating system PROGRAMMER IVE RED ON The machine is fitted with a Smart Starter (situated on electrics panel) which prevents damage to the compressor within the heat pump. This smart starter has an ED which indicates fault conditions as follows: - Ready to accept a start command: a double blink every 5 seconds. - 3 minute cycle delay: flash per second. - Fault mode: slow flash, 5 sec on, 5 sec off. - ow voltage: fast flash, 0 per second. AT9634 5

16 INSTAATION DHW Priority Demand Note: ink OUT - ASHP TB & TB2 Signals To Valve Valve position (230V) ** Programmer should be set to separate DHW and Heating time periods Inputs into ASHP (230V) Outputs from ASHP (230V) Notes DHW Only DHW OPEN TB3 TB, TB4, TB30 TB3 output on TB4, TB24 not used Both** DHW OPEN TB3 TB, TB4, TB9, TB30 TB3 output on TB4, TB24 not used Heating only HEATING OPEN TB0 TB9, TB30 TB0 output on TB4, TB24 not used TB30,TB9, or TB4, Defrost HEATING OPEN TB0 TB, TB30 TB0,TB5 output on TB4,TB24, TB29 not used DHW & Heating Demand ASHP Operation Check ist S-Plan System Note: ink IN - ASHP TB & TB2 Signals To Valve Valve position (230V) Inputs into ASHP (230V) Outputs from ASHP (230V) DHW Only DHW OPEN TB3 TB,TB4,TB30 TB3 output on TB4, TB24 not used Both HEATING & DHW OPEN TB0, TB3 TB,TB4, TB9, TB30 TB3, TB0 output on TB4, TB24 not used Heating only HEATING OPEN TB0 TB9, TB30 TB0 output on TB4, TB24 not used TB30,TB9 or TB4, Defrost HEATING OPEN TB0 TB, TB30 TB0, TB5 output on TB4,TB24, TB29 not used Buffer Demand via Buffer tank stat and ambient stat Signals To Valve Inputs into ASHP Outputs from Demand Valve position (230V) (230V) ASHP (230V) Notes TB,TB4 & TB5, DHW Only HEATING & DHW OPEN TB0, TB3 TB30 TB0, TB5, TB3 Buffer Tank heated to setting TB,TB4,TB9, TB5, Both HEATING & DHW OPEN TB0, TB3 TB30 TB0, TB5, TB3 Buffer Tank heated to setting Heating only HEATING OPEN TB0 TB9, TB5, TB30 TB0 Buffer Tank already being heated Notes ASHP Operation Check ist W-Plan System DHW Priority Notes: ink OUT - ASHP TB & TB2 **Programmer should be set to separate DHW & Heating time periods Inputs into ASHP Outputs from Demand Valve position Signals to Valve (230V) ASHP (230V) Notes DHW Only spring return to DHW none TB & TB4, TB30 230V TB24 output on TB4, TB3 not used Both** spring return to DHW none TB, TB4, TB9, TB30 230V TB24 output on TB4, TB3 not used 230V on TB0, Heating only heating open 230V from TB0 TB9, TB30 TB24 output on TB4 not used Defrost heating open 230V from TB0 TB30, TB9 or TB, TB4, TB30 230V on TB0 & TB5, TB24 output on TB4, TB29 not used Buffer Demand via Buffer tank stat and ambient stat Demand Valve position Signals to Valve DHW Only Heating- open 230V from TB0 Both Heating- open 230V from TB0 Inputs into ASHP (230V) TB, TB4, TB5, TB30 TB, TB4, TB9 TB5, TB30 Heating only Heating- open 230V from TB0 TB9, TB5, TB30 Outputs from ASHP (230V) 230V on TB0, TB5, TB24 230V on TB0, TB5, TB24 230V on TB0, TB5, TB24 Notes Buffer Tank heated to setting Buffer Tank heated to setting Buffer Tank already being heated 6

17 datasheet INSTAATION MODE UNITS AIRTHERM 4.5 AIRTHERM 9 AIRTHERM 2 DUTY Air on 0 o C 90% RH *(@ DESIGN WATER FOW) OUTPUT TO WATER (@55 o c) # kw EECTRICA INPUT kw OUTPUT TO WATER (@35 o c) # kw EECTRICA INPUT kw Air on 7 o C 87% RH *(TO EN ) OUTPUT TO WATER (@35 o c) # kw EECTRICA INPUT kw C.O.P. (SEE NOTE 6) Air on 2 o C 60% RH *(@ DESIGN WATER FOW) OUTPUT TO WATER (@55 o c) # kw EECTRICA INPUT kw OUTPUT TO WATER (@35 o c) # kw EECTRICA INPUT kw DUTY EECTRICA SUPPY PHASE V/ph/Hz 230/240V-N/50Hz MINIMUM SUPPY CAPACITY amps AMBIENT 0 o c WATER 24 o C kwh AMBIENT 20 o C WATER 24 o C kwh MAXIMUM SUPPY FUSE ph N/ TYPE C MCB amps MAXIMUM STARTING CURRENT STD (RA) ph amps RA ph amps SOFT START AMPS ph N amps IP Rating WATER FOWS ETC. WATER FOW ± 20% s/min PRESSURE DROP (WATER) metres hd CONDENSER VOUME s WATER CONNECTIONS inches 3/4 BSPM 3/4 BSPM BSPM CONDENSATE WATER CONNECTIONS inches 3/4 DOMESTIC WASTE MAIN FAN AIR FOW air on grille. Wet evaporator) m3/hr MAX EXTERNA STATIC PRESSURE STD mm Wg MAX EXTERNA STATIC PRESSURE F mm Wg FA:- ph N amps GENERA DATA Hermetic System GAS CHARGE R34a kg OI TYPE (COMPRESSOR) POYOESTER OI PHYSICA DIMENSIONS WIDTH (Un-packed) mm DEPTH (Un-packed) mm HEIGHT (Un-packed) mm WEIGHT (Un-packed) kg SOUND metre db(a) SOUND 0 metre db(a) SOUND POWER TO ENV 202 db(a) NOTES.. Weight and dimensions nett 2. Application limits: ower limit of use to EN , Outside heat exchanger = -6ºC. m hd =.4 psi Potential Design lower limit of use, Outside heat exchanger = -5ºC l/min = 0.22 gall owest entering temperature to EN , Inside heat exchanger (water on) = 20ºC (To ensure satisfactory defrosting this assumes industry standard water heat up times from 0ºC to nominal UFH temperature of 35ºC) Higher limit of use to EN Outside heat exchanger = 35ºC Potential Design higher limit of use, Outside heat exchanger = 45ºC Higher limit of use to EN Inside heat exchanger (water off) = 65ºC 3. Allow 500mm clearance to service panels 4. Ideal reserve the right to change or modify models without prior notice 5. R34A global warming potential (GWP) The C.O.P. applies to NEW units with CEAN heat exchangers. * OUTDOOR HEAT EXCHANGER INET TEMPERATURE # INDOOR HEAT EXCHANGER OUTET TEMPERATURE SPECIFIC PERFORMANCE CURVES CAN BE SUPPIED BY IDEA ON REQUEST 7

18 INSTAATION Machine dimensions, access panels and electrical/water connections airtherm 4.5 WATER IN/OUT CONNECTIONS 3/4" BSPM STUBS. CONDENSATE CONNECTION 3/4" BSPM STUB. CUSTOMERS EECTRICA CONNECTIONS SEE WIRING DIAGRAMS AOW 500mm FOR ACCESS TO SERVICE PANES N AIR OFF ETH ETH TOP PANE (REMOVABE) AIR ON EVAPORATOR PANE (REMOVABE) EECTRICS ACCESS PANE CONSOE COVER CABE ENTRY 958 WATER OUT WATER IN CONDENSATE DRAIN FAN PANE (REMOVABE) AIR ON WARNING. DANGER FROM EECTRIC SHOCK. ISOATE A EECTRICA SUPPIES BEFORE REMOVING ANY PANES 8

19 INSTAATION Machine dimensions, access panels and electrical/water connections airtherm 9 WATER IN/OUT CONNECTIONS 3/4" BSPM STUBS. CONDENSATE CONNECTION 3/4" BSPM STUB. CUSTOMERS EECTRICA CONNECTIONS SEE WIRING DIAGRAMS AOW 500mm FOR ACCESS TO SERVICE PANES AIR OFF N TOP PANE (REMOVABE) ETH ETH 45 AIR ON EVAPORATOR PANE (REMOVABE) CONSOE COVER EECTRICS ACCESS PANE CABE ENTRY 958 WATER OUT 406 WATER IN CONDENSATE DRAIN FAN PANE (REMOVABE) AIR ON WARNING. DANGER FROM EECTRIC SHOCK. ISOATE A EECTRICA SUPPIES BEFORE REMOVING ANY PANES 9

20 INSTAATION Machine dimensions, access panels and electrical/water connections airtherm 2 CUSTOMERS EECTRICA CONNECTIONS SEE WIRING DIAGRAMS WATER IN/OUT CONNECTIONS " BSPM STUBS. CONDENSATE CONNECTION 3/4" BSPM STUB. A 5 Y AOW 500mm FOR ACCESS TO SERVICE PANES N AIR OFF ETH ETH 6 8 A2 TOP PANE (REMOVABE) AIR ON EVAPORATOR PANE (REMOVABE) EECTRICS ACCESS PANE CONSOE COVER FAN PANE (REMOVABE) CABE ENTRY WATER OUT 4 WATER IN CONDENSATE DRAIN AIR ON WARNING. DANGER FROM EECTRIC SHOCK. ISOATE A EECTRICA SUPPIES BEFORE REMOVING ANY PANES 20

21 INSTAATION SYSTEM DIAGRAMS - Air Source Heat Pump Plumbing Circuits - S Plan (example) preferred method OUTSIDE SENSOR PART OF WEATHER COMPENSATION UNIT (IF FITTED) C PROGRAMMER (e.g. DANFOSS FP75) *2 PORT SAFETY CUT OUT VAVE FITTED IN INDIRECT PRESSURISED CYINDERS FROST STAT JUNCTION BOX WEATHER COMPENSATION UNIT (IF FITTED) H E DWEING ROOM THERMOSTAT WITH ON OFF SWITCH EXPANSION VESSE EXPANSION (IF FITTED) REIEF VAVE (IF FITTED) IMMERSION HEATER WITH THERMOSTATIC CUT OUT THERMOSTAT MANUA RESET TO BE SET AT 65 O C (IF FITTED) A B F PRESSURE AND TEMPERATURE REIEF VAVE (IF FITTED) TUNDISH (IF FITTED) DHW THERMOSTAT SET TO 60 O C DIFF SET TO 8 O C COD WATER TANK HOT WATER COD WATER 2 A AB 3 STAT 25 O C IF FITTED A B AMBIENT STAT 0 O C *TO WASTE. WARNING CONSISTS OF SCADING WATER AND STEAM. DISCHARGE BEOW FIXED GRATING IN ACCORDANCE WITH BUIDING REGUATIONS. A A DWEING HEATING SYSTEM B X B B G SEE NOTE X 45 O C BUFFER TANK DIRECT AIRTHERM 4.5 = 50 ITRES AIRTHERM 9 = 00 ITRES AIRTHERM 2 = 50 ITRES B DRAIN COCK DHW TANK PUMP HEATING FOW TEMPERATURE SENSOR. PART OF WEATHER COMPENSATION UNIT (IF FITTED) IF FITTED (OPTIONA) D AIR SOURCE HEAT PUMP WIRED FOR 'DHW' PRIORITY OR 'BOTH' PRIORITY (ACTS AS BOIER) A AT9642 A B 2 PORT SPRING RETURN VAVE DHW 2 PORT SPRING RETURN VAVE ROOM HEATING 2 3 VAVE THERMOSTATIC FOOR BYPASS VAVE (IF REQUIRED) SET TO 45 C VAVE 'DEFROST' REQUIRED VAVE' = DIVERTER VAVE 'AB' TO 'B' = ROOM HEATING AOWED 'AB' TO 'A' = NO ROOM HEATING (DEFROST SIGNA FROM HEAT PUMP) NOTE: IF ROOM HEATING IS VIA RADIATORS RATHER THAN UNDERFOOR HEATING THEM VAVE 2 AND THE PIPE RUN X-X ARE NOT REQUIRED. O 2

22 INSTAATION SYSTEM DIAGRAMS - External Wiring with Terminal Junction Box - S Plan IMMERSION HEATER PROGRAMMER HW CH N WEATHER COMPENSATION UNIT (OPTIONA) F4 K4 SWITCH FUSE SPUR MAX 30A SEE NOTE 4 N E FUSE SEE NOTE 4 FROST STAT REMOVE INK IF WEATHER COMPENSATION UNIT FITTED HONEYWE V4044 SPRING RETURN 3 PORT DIVERTER VAVE BUE GRN/YE BROWN N E N E N N E N N 26 E 27 TERMINA JUNCTION BOX CYINDER VAVE HIGH PRESSURE CYINDERS ONY M M REQUIRED ONY IF HIGH EVE STAT NOT FITTED N ROOM THERMOSTAT AMBIENT STAT MAKE ON BEOW TEMPERATURE AUX CONTACTS 2 PORT VAVE HONEYWE V4043 HOT WATER DOMESTIC SINGE PHASE FIXED SPEED PUMP - SEE NOTE AUX CONTACTS 2 PORT VAVE HONEYWE V4043 ROOM HEATING DOMESTIC HOT WATER THERMOSTAT HIGH EVE MANUA RESET THERMOSTAT HIGH PRESSURE CYINDER ONY BUFFER TANK STAT MAKE ON BEOW TEMPERATURE 2 CORE CABE N N ROOM HEATING (NOT USED) BYPASS ROOM HEATING SEE NOTE 2 230V ~ N 230V ~ N N E N E N E FUSED SUPPY SEE NOTE 6 SWITCHED FUSED SUPPY 4505 = 5A/6A MCB TYPE C 9005 = 32A/32A MCB TYPE C 2005 = 40A/40A MCB TYPE C AIR SOURCE HEAT PUMP INTERNA TERMINAS INK FOR HOT WATER AND HEATING SEE NOTE 6 NOTES MAXIMUM RATING OF CONTACTS FOR PUMP A. IF OVER A REAY WI NEED TO BE FITTED. 2 AIR SOURCE HEAT PUMP TERMINA 8 IS CONTRO IVE TEST TERMINA. 3 A VAVES TO BE SPRING RETURN TYPE. 4 A EXERNA EQUIPMENT TO BE FUSED TO MANUFACTURERS RECOMMENDED FUSE SIZES. 5 MIN CABE REQUIREMENTS 3 CORE MAINS CABE, 2 CORE CONTRO CABE 6 ASSOCIATED EXTERNA EQUIPMENT AND MACHINE TO BE WIRED FROM SAME CONSUMER UNIT AND TAKEN FROM THE SAME PHASE AND NEUTRA INCOMING SUPPY. 7 WHEN FITTING BUFFER TANK THERMOSTATIC IMMERSION HEATING, THE IMMERSION THERMOSTAT MUST BE WIRED SO THAT IT CUTS OUT ON OVER TEMPERATURE, MAX SETTING 55ºc IDEA S PAN GUIDE ONY AT

23 INSTAATION OUTSIDE SENSOR PART OF WEATHER COMPENSATION UNIT (IF FITTED) C PROGRAMMER (e.g. DANFOSS FP75) *2 PORT SAFETY CUT OUT VAVE FITTED IN INDIRECT PRESSURISED CYINDERS FROST STAT JUNCTION BOX WEATHER COMPENSATION UNIT (IF FITTED) H E DWEING ROOM THERMOSTAT WITH ON OFF SWITCH EXPANSION VESSE (IF FITTED) EXPANSION REIEF VAVE (IF FITTED) IMMERSION HEATER WITH THERMOSTATIC CUT OUT THERMOSTAT MANUA RESET TO BE SET AT 65 O C (IF FITTED) A B F PRESSURE AND TEMPERATURE REIEF VAVE (IF FITTED) TUNDISH (IF FITTED) DHW THERMOSTAT SET TO 60 O C DIFF SET TO 8 O C COD WATER TANK HOT WATER COD WATER 2 A AB 3 STAT 25 O C IF FITTED AMBIENT STAT 0 O C *TO WASTE. WARNING CONSISTS OF SCADING WATER AND STEAM. DISCHARGE BEOW FIXED GRATING IN ACCORDANCE WITH BUIDING REGUATIONS. A A DWEING HEATING SYSTEM B X B B G SEE NOTE X 45 O C BUFFER TANK DIRECT AIRTHERM 4.5 = 50 ITRES AIRTHERM 9 = 00 ITRES AIRTHERM 2 = 50 ITRES B 3 PORT SPRING RETURN DIVERTER VAVE DRAIN COCK B A AB HEATING FOW TEMPERATURE SENSOR. PART OF WEATHER COMPENSATION UNIT (IF FITTED) DHW TANK IF FITTED (OPTIONA) PUMP D AIR SOURCE HEAT PUMP WIRED FOR 'DHW' PRIORITY OR 'BOTH' PRIORITY (ACTS AS BOIER) A VAVE THERMOSTATIC FOOR BYPASS VAVE (IF REQUIRED) SET TO 45 NOTE: IF ROOM HEATING IS VIA RADIATORS RATHER THAN UNDERFOOR HEATING THEN VAVE 2 AND THE PIPE RUN X-X ARE NOT REQUIRED. O SYSTEM DIAGRAMS - Air Source Heat Pump Plumbing Circuits - W Plan (example) AT C VAVE 'DEFROST' REQUIRED VAVE' = DIVERTER VAVE 'AB' TO 'B' = ROOM HEATING AOWED 'AB' TO 'A' = NO ROOM HEATING (DEFROST SIGNA FROM HEAT PUMP) 23

24 INSTAATION SYSTEM DIAGRAMS - External Wiring with Terminal Junction Box - W Plan PROGRAMMER HW N 2 3 CH 4 WEATHER COMPENSATION UNIT (OPTIONA) F4 K4 SWITCH FUSE SPUR MAX 30A SEE NOTE 4 IMMERSION HEATER N E FUSE SEE NOTE 4 FROST STAT REMOVE INK IF WEATHER COMPENSATION UNIT FITTED BUE GRN/YE HONEYWE V4044 SPRING RETURN 3 PORT DIVERTER VAVE BROWN N E N E N N E N N 26 E 27 TERMINA JUNCTION BOX SINGE PHASE PUMP FIXED SPEED SEE NOTE CYINDER VAVE M REQUIRED ONY IF HIGH EVE STAT NOT FITTED 3 PORT VAVE DOMESTIC HONEYWE HOT WATER V4044 THERMOSTAT ROOM HEATING HIGH EVE MANUA RESET THERMOSTAT HIGH PRESSURE CYINDER ONY N ROOM THERMOSTAT AMBIENT STAT MAKE ON BEOW TEMPERATURE BUFFER TANK STAT MAKE ON BEOW TEMPERATURE 2 CORE CABE HIGH PRESSURE CYINDERS ONY N N ROOM HEATING (NOT USED) BYPASS ROOM HEATING SEE NOTE 2 230/240V ~ N FUSED SUPPY SEE NOTE 6 230/240V ~ N SWITCHED FUSED SUPPY 4505 = 5A/6A MCB TYPE C 9005 = 32A/32A MCB TYPE C 2005 = 40A/40A MCB TYPE C SEE NOTE 6 N E N E N E AIR SOURCE HEAT PUMP INTERNA TERMINAS HOT WATER AND HEATING INK MUST NOT BE FITTED NOTES MAXIMUM RATING OF CONTACTS FOR PUMP A. IF OVER A REAY WI NEED TO BE FITTED. 2 AIR SOURCE HEAT PUMP TERMINA 8 IS CONTRO IVE TEST TERMINA. 3 A VAVES TO BE SPRING RETURN TYPE. 4 A EXERNA EQUIPMENT TO BE FUSED TO MANUFACTURERS RECOMMENDED FUSE SIZES. 5 MIN CABE REQUIREMENTS 3 CORE MAINS CABE, 2 CORE CONTRO CABE 6 ASSOCIATED EXTERNA EQUIPMENT AND MACHINE TO BE WIRED FROM SAME CONSUMER UNIT AND TAKEN FROM THE SAME PHASE AND NEUTRA INCOMING SUPPY. 7 WHEN FITTING BUFFER TANK THERMOSTATIC IMMERSION HEATING, THE IMMERSION THERMOSTAT MUST BE WIRED SO THAT IT CUTS OUT ON OVER TEMPERATURE, MAX SETTING 55ºc AT9647 IDEA W PAN GUIDE ONY 24

25 INSTAATION Bivalent Installation - Schematic Diagram Heating Rad Heating Rad 2 Heating Rad 3 Room T'stat System By-pass MUST be fitted if TRV's are used B A Programmer/ timeclock AB Defrost By-pass Valve DHW Supply 55 deg C DHW TANK Tank stat set at 60 o C 60 deg C BUFFER TANK 55 deg C B A AB Boiler on valve open 70 deg C A B 50 deg C Boiler NRV 55 deg C 20 l/min 50 deg C Return Temp Thermostat/sensor Heat Pump on at 45 o C on at 48 o C set at 2-5 o C Ambient Thermostat/sensor AT

26 INSTAATION REFRIGERATION DIAGRAM - AIRTHERM 4.5 & 9 THERMOSTAT (CONSOE) HEATING RETURN WATER = INSUATION RECEIVER CONDENSER NRV DRIER REVERSING VAVE COI HP SERVICE SCHRADER 400 psig AUTO RESET CAPIARY 3/6" DIA X 300mm ONG DRIP TRAY HEATER NRV HP 430 psig MANUA RESET HP COMP P SERVICE SCHRADER TEV PHIA TEV SUCTION ACCUMUATOR E.D.C.M. PHIA PROCESS PORT 26

27 REFRIGERATION DIAGRAM - AIRTHERM 2 INSTAATION CONDENSER HEATING RETURN WATER THERMOSTAT DWEING HEATING (CONSOE) REVERSING VAVE COI HIGH TEMP CUTOUT THERMOSTAT HP SERVICE SCHRADER 400psig AUTO RESET HP HP 430psig MANUA RESET OI EQUAISATION COMP COMP 2 P SERVICE SCHRADER P SERVICE SCHRADER SUCTION ACCUMUATOR SUCTION ACCUMUATOR TEV PHIA TEV PHIA OW TEMP CUTOUT THERMOSTAT EVAPORATOR EDCM PROBE PROCESS PORT CAPIARY /4" DIA X 300mm ONG NRV RECEIVER TEV SO VAVE SO VAVE TEV DRIP TRAY HEATER NRV DRIER = INSUATION AIR TO WATER HEAT PUMP AIRTHERM 2 27

28 Optional Weather Compensation INSTAATION The use of a weather compensator with Ideal airtherm heat pumps achieves greater efficiency benefits. An example of using the Siemens model RVP02 follows. EGEND. Setting potentiometer for switching differential. 2. Setting knob for heating curve slope. 3. Coding switches 4. Setting potentiometer for authority of room temperature for quick setback active/inactive. 5. Setting potentiometer for ECO heating limit. 6. Heating curve chart. WEATHER COMPENSATOR UNIT 2 Coding switches (item 3 ) FUNCTION Base point of heating curve SWITCH POSITION ON EFT SYMBO SYMBO SWITCH POSITION ON EFT SUGGESTED SETTING Base point at 20ºC flow temperature 20ºC 35ºC Base point at 35ºC flow temperature Set to eft Frost protection, yes/no Yes, frost protection No, no frost protection Set to Right Changeover of compensating variable, yes/no No changeover: always weather compensated control and room temperature authority according to setting potentiometer E Changeover to room temperature compensated control at reduced level Set to eft Pump overrun, yes/no Six minute pump overrun 6 Min 0 Min 0 minutes, no pump overrun Set to Right Setting potentiometers (items, 4, 5 ) ITEM POTENTIOMETER FUNCTION SETTING RANGE GUIDE VAUE SUGGESTED SETTING Switching differential of heat pump temperature control 20 K 6 K Set to 5 K 4 Authority of room temperature on heat pump temperature control 0 00 % authority OFF = quick setback is inactive 50 % (quick setback is active) Set to OFF 5 Heating limit for ECO automatic energy saver 0 +8 C (referred to the room temperature setpoint) 3 K (gives a heating limit of 6 C at a room temperature setpoint of 20 C) Function disabled: OFF 28

29 Mounting the sensor Mounting ocation For optimisation the sensor must be positioned on the coldest wall of the house (normally wall facing north). The sensor must never be exposed to the morning sun. Mounting Height Preferably in middle of dwelling to be heated, but at least 2.5m above the ground. Must not be fitted above windows, doors, air extracts or other heat sources, below balconies or in the eaves of the roof. The sensor must not be painted over. Outdoor Temperature Sensor MOUNTING POSITIONS STRAP ON TEMPERATURE SENSOR ~00 mm KEEP AREA AROUND SENSOR CEAR OF INSUATION AT9649 WIRING THE OPTIONA WEATHER COMPENSATOR (see external wiring diagram) Notes.. Room thermostat enables heating pump 2. Assumed that domestic hot water will have priority and override heating circuit. OUTSIDE DETECTOR QAC22 HEAT PUMP TEMPERATURE DETECTOR QAD22 ROOM THERMOSTAT 3. If using Grundfos control box, terminal numbers are different, see external wiring diagram. Cable lengths AC 230/240V B9 B M F4 RVP02 N K4 PERMISSIBE CABE ENGTHS TO DETECTORS AND ROOM UNIT CABE SIZE CABE ENGTH COPPER CABE Ø0.6mm 30m COPPER CABE 0.5mm² 50m COPPER CABE.0mm² 80m COPPER CABE.5mm² 20m TERMINAS IN HEAT PUMP (TERMINA JUNCTION BOX ONY), SEE NOTE 3. TB4 TB5 AT

30 Heat Pump Buffer Installation Requirements There are a number of main points that affect the buffer sizing requirements as follows:. A constant water flow of +/- 0% of design must be maintained through the heat pump. This can be achieved using good system design. Where TRV s or underfloor heating are used special care must be taken to ensure the flow is maintained regardless of system turn down. 2. The assumptions using combination cylinders in table assume that the buffer vessel is plumbed in series with the radiator circuitry simply adding water volume to assist flow rates. 3. Table 2 shows the temperature drop in the water volume in the buffer and the heat distribution circuit as a result of providing energy for the heat pump to perform defrost functions when necessary. Table Heat Pump System Type TRV s fitted Flow rate required l/m System water volumes Buffer tank Minimum size of buffer Method proposed Minimum DHW Cylinder Normal DHW Cylinder Max DHW size Minimum Circulation Pump Size No of Pumps on system Typical System Design 4.5kW radiators no 7.5 above 45 s No n/a 4.5kW radiators no 7.5 below 45 s Yes 50 s 4.5kW radiators yes 7.5 n/a Yes 50 s DHW cylinder only combination cylinder combination cylinder S or W Plan S or W Plan S or W Plan 4.5kW underfloor n/a 7.5 n/a Yes 50 s separate cylinder /buffer pump system 9.0kW radiators no 5 above 80 s No n/a 9.0kW radiators no 5 below 80 s Yes 50 s 9.0kW radiators Yes 5 n/a Yes 50 s DHW cylinder only combination cylinder combination cylinder S or W Plan S or W Plan S or W Plan 9.0kW underfloor n/a 5 n/a Yes 95 s separate cylinder /buffer pump system 2kW radiators no 20 above 60 s No n/a 2kW radiators no 20 above 0 s Yes 50 s 2kW radiators no 20 below 0 s Yes 95 s 2kW radiators Yes 20 n/a Yes 95 s combination cylinder combination cylinder combination cylinder combination cylinder S or W Plan S or W Plan S or W Plan S or W Plan 2kW underfloor n/a 20 n/a Yes 50 s separate cylinder /buffer pump system Table 2 - Defrost Times & Temperature Drops Model Operation Condition Defrost Times - mins System Volume - ltrs System temp drop - ºC** 4.5 A5/W A0/W A-3/W A5/W A0/W A-3/W A5/W A0/W A-3/W ** Estimated from defrost tests carried out 30

31 Water Storage Requirement The heating circulation pump takes hot water from the Airtherm unit to the thermstore water storage vessel which is a specially designed indirect cylinder. The following range of cylinders are available from Ideal heating. These are fitted with thermostatic controls which control the storage water temperature. The maximum DHW temperature is set in the factory at 65ºC. Sealed Systems - Installation must comply with the requirements of BS6798 and BS5449. Installations must be designed in excess of the maximum system operating temperature and pressures. Safety valves must comply with BS6759. All system components must comply with the required local water regulations. Thermostore Cylinders Pressure Data thermstore Coil Pressure Data. Inlet control to 2. bars (by the valve provided). Coil is rated to 3.5 bars 2. The venting pressure 3.5 bars (by the valve provided) 2. Maximum operating pressure 3 bars 3. The maximum operating pressure is 3 bars Thermstore Unvented (indirect) Cylinder Cylinder Type Shell size (mm) Overall dimensions (mm) Ideal No 50 itre 00 x x itre 300 x x itre 500 x x mm Draw Off/Expansion Expansion Vessel Boss ½ Boss for High imit Stat. Relief Valves & Tundish ½ Stat Boss for Control Stat Immersion heater with integrated Stat High Efficiency 22mm Coil ¾ Cold Feed with spreader pipe and check valve fitted. ½ Drain 3

32 Thermstore Unvented (direct) Buffer & (indirect) Cylinder Combined Cylinder Shell size Overall Ideal Type (mm) dimensions (mm) No 50/50 itre 500 x x /80 itre 200 x x /20 itre 250 x x mm Draw Off/Expansion ½ female for High imit Stat Expansion Vessel Boss Relief Valves & Tundish High Efficiency Coil 22mm Connection ½ Pocket Control Thermostat 3 kw Immersion heater & integrated stat ¾ Cold Feed c/w Baffle and Check Valve Fitted Connection for Flow & return For Buffer Vessel 3 kw Immersion heater & integrated stat Drain to Be Teed into one of lower connections! ½ Drain Flow &Return Connections for Buffer Vessel ½ female for Thermostat Pocket Buffer Vessel for Heating 32

33 Thermstore Unvented (direct) Buffer Cylinder Cylinder Shell size Finished Ideal Type (mm) Size No 50 Direct 450 x x Direct 750 x x Direct 900 x x Flow (Heat Pump) Flow (Heating) ½ Boss for High imit Stat. ½ Stat Boss for Control Stat 3 kw Immersion heater & integrated stat (2¼ ) Returns 33

34 AIR TO WATER HEAT PUMP COMMISSIONING CHECKIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the heat pump and associated equipment as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference. Failure to install and commission this equipment to the manufacturer s instructions may invalidate the warranty but does not affect statutory rights. Customer Name Address Heat Pump Make and Model Telephone Number Heat Pump Serial Number Commissioned by (print name) Certified Operative Reg. No. [] Company Name & Address Commissioning Date Telephone No. Building Regulations Notification Number (if applicable) [2] CONTROS - SYSTEM AND HEAT PUMP Tick the appropriate boxes if applicable. Time & Temperature Room Thermostat & Programmable oad/weather Optimum Start Control to Heating Programmer/Timer Roomstat Compensation Control 2. Time & Temperature Cylinder Thermostat & Combined with Heat Control to Hot Water Programmer/Timer pump main controls 3. Heating Zone Valves (including underfloor loops) Fitted Not Required 4. Hot Water Zone Valves Fitted Not Required 5. Thermostatic Radiator Valves Fitted Not Required 6. Heat Pump Safety Interlock [3] Built In Provided 7. Outdoor Sensor Fitted Not Required 8. Automatic Bypass System Fitted Not Required 9. Buffer Vessel Fitted Yes No If YES, Volume itres A SYSTEMS The heating system has been filled and pressure tested Yes Expansion vessel for heating is sized, fitted & charged in accordance with manufacturer s instructions Yes The heat pump is fitted on a solid/stable surface capable of taking its weight Yes The system has been flushed and cleaned in accordance with BS7593 and heat pump manufacturer s instructions Yes What system cleaner was used? What inhibitor was used? Qty s Is the system adequately frost protected? Yes OUTDOOR UNIT Are all external pipeworks insulated? Is the fan free from obstacles and operational? Has suitable consideration been made for waste water discharge? Yes Yes Yes CENTRA HEATING MODE Heating Flow Temperature C Heating Return Temperature C DOMESTIC HOT WATER MODE Measure and Record Is the heat pump connected to a hot water cylinder? Unvented Vented Thermal Store Not Connected Hot water has been checked at all outlets Yes Have Thermostatic Blending Valves been fitted? Yes Not required ADDITIONA SYSTEM INFORMATON Additional heat sources connected: Gas Boiler Oil Boiler Electric Heater Solar Thermal Other A INSTAATIONS The heating, hot water and ventilation systems complies with the appropriate Building Regulations All electrical work complies with the appropriate Regulations The heat pump and associated products have been installed and commissioned in accordance with the manufacturer s instructions The operation of the heat pump and system controls have been demonstrated to the customer The manufacturer s literature, including Benchmark Checklist and Service Record, has been explained and left with the customer Yes Yes Yes Yes Yes Commissioning Engineer s Signature Customer s Signature (To confirm demonstration of equipment and receipt of appliance instructions) Notes: [] Installers should be members of an appropriate Competent Persons Scheme. [2] All installations in England and Wales must be notified to ocal Area Building Control (ABC) either directly or through a Competent Persons Scheme. A Building Regulations Compliance Certificate will then be issued to the customer. [3] May be required for systems covered by G3 Regulations 34 Heating and Hotwater Industry Council (HHIC)

35 Service Record It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service Provider Before completing the appropriate Service Interval Record below, please ensure you have carried out the service as described in the manufacturer s instructions. Always use the manufacturer s specified spare part when replacing controls. Service Date: Service 2 Date: Engineer Name: Engineer Name: Company Name: Telephone No. Operative ID No. Comments: Company Name: Telephone No. Operative ID No. Comments: Signature: Signature: Service 3 Date: Service 4 Date: Engineer Name: Engineer Name: Company Name: Telephone No. Operative ID No. Comments: Company Name: Telephone No. Operative ID No. Comments: Signature: Signature: Service 5 Date: Service 6 Date: Engineer Name: Engineer Name: Company Name: Telephone No. Operative ID No. Comments: Company Name: Telephone No. Operative ID No. Comments: Signature: Signature: Service 7 Date: Service 8 Date: Engineer Name: Engineer Name: Company Name: Telephone No. Operative ID No. Comments: Company Name: Telephone No. Operative ID No. Comments: Signature: Signature: Service 9 Date: Service 0 Date: Engineer Name: Engineer Name: Company Name: Telephone No. Operative ID No. Comments: Company Name: Telephone No. Operative ID No. Comments: Signature: Signature: 35

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38 Technical Training The Ideal Boilers Technical Training Centre offers a series of first class training courses for domestic, commercial and industrial heating installers, engineers and system specifiers. For details of courses please ring: FM 5995 Manufactured under an ISO 900 registered quality management system Ideal Boilers, P.O. Box 03, National Ave, Kingston upon Hull, HU5 4JN. Telephone: Fax: Registration No. ondon Ideal Stelrad Group pursues a policy of continuing improvement in the design and performance of its products. The right is therefore reserved to vary specification without notice.