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INSTALLATION
AND OPERATING
GROUNDTHERM
Ground Source Heat Pump
3.5 & 5
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 www.idealheating.com where you can download the relevant information in PDF format.
October 2011
UIN 206312 A02
SD449552 - Issue 10
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Table of Contents
Related Manuals for IDEAL Ground Source
Summary of Contents for IDEAL Ground Source
- Page 1 INSTALLATION AND OPERATING GROUNDTHERM Ground Source Heat Pump 3.5 & 5 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.
- Page 2 Groundtherm - Ground Source Heat Pump - Installation...
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Page 3: Table Of Contents
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. Groundtherm - Ground Source Heat Pump - Installation... -
Page 4: Heating With A Pump
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. Groundtherm - Ground Source Heat Pump - Installation... -
Page 5: How The Heat Pump Works
Maximum experienced and competent persons. single Phase machines 207V 253V The Groundtherm heat pump operates at a high level of efficiency Frequency 47.5hz 52.5hz and has two modes of operation, one for space heating through N.B The voltage must be measured at the heat pump mains in under floor heating or radiators, and a second for higher terminals with compressor(s) running at the rated load condition. -
Page 6: Heating System
A special DhW cylinder (Ideal - Thermstore) should be purchased organic material (possibility none with each Ideal Ground source heat Pump. These cylinders of sedimentation) are designed to have a different heating specification profile to standard cylinders and are supplied with a special tank thermostat 6.5 - 9.0... -
Page 7: Domestic Hot Water
Call for service if reset does not clear fault. The console panel on the Groundtherm unit has a digital thermostat which controls the space heating return water temperature from the heat pump. This is adjustable, up to the factory set flow limit of 55ºC. -
Page 8: Pump Box
FLOW METER RANGE 8 TO 28 l/min. FITTINGS SHOWN WITH INSULATION COVER REMOVED SEE DATA SHEET SECTION 5.8 Connect the pump box to the heat pump and ground loop in a suitable manner. Groundtherm - Ground Source Heat Pump - Installation... -
Page 9: Technical
(CONTACT IDEAL SERVICE ENGINEER IF HIGH PRESSURE RESET DOES NOT CLEAR FAULT) POWER LIGHT SHOWS, PRESS RED BUTTON HEAT HEATING ºC PUMP PROGRAMMER LIVE SPACE HEATING TEMPERATURE HIGH PRESSURE SWITCH CONTROLLER MANUAL RESET PROGRAMMER LIVE LAMP (RED) Groundtherm - Ground Source Heat Pump - Installation... -
Page 10: Wiring Installation
5.2 wIRInG InStallatIon Groundtherm - Ground Source Heat Pump - Installation... -
Page 11: Wiring Diagrams
5 = 20A/20A MCB TYPE C SIMULTANEOUS HOT WATER SEE NOTE 5 AND HEATING GROUND SOURCE HEAT PUMP INTERNAL TERMINAL CONNECTIONS EXTERNAL WIRING WITH TERMINAL JUNCTION BOX NOTES 1. MAXIMUM RATING OF CONTACTS FOR PUMP 1A. IF OVER 1A RELAY WILL NEED TO BE FITTED 2. - Page 12 230/240V ~ 1N SWITCHED FUSED SUPPLY 3.5 = 15A/16A MCB TYPE C REMOVE 5 = 20A/20A MCB TYPE C GROUND SOURCE HEAT PUMP INTERNAL TERMINAL CONNECTIONS LINK SEE NOTE 5 EXTERNAL WIRING WITH TERMINAL JUNCTION BOX NOTES 1. MAXIMUM RATING OF CONTACTS FOR PUMP 1A.
- Page 13 5 = 20A/20A MCB TYPE C LINK FOR SEE NOTE 5 SIMULTANEOUS HEATING AND GROUND SOURCE HEAT PUMP INTERNAL TERMINAL CONNECTIONS HOT WATER EXTERNAL WIRING WITH TERMINAL JUNCTION BOX NOTES 1. MAXIMUM RATING OF CONTACTS FOR PUMP 1A. IF OVER 1A RELAY WILL NEED TO BE FITTED 2.
- Page 14 7 8 9 W 1.0 B 0.5 COMPRESSOR TO ELEC BOX EARTH STUD INSIDE HEAT PUMP WIRE COLOUR CODE O/BL ORANGE/BLACK 1.0 = 1.0mm² CONDUCTOR SIZE 2.5 = 2.5mm² CONDUCTOR SIZE ETC. Groundtherm - Ground Source Heat Pump - Installation...
- Page 15 LIVE FROM LIVE GO SIGNAL PROGRAMMER LIVE OUTPUT FOR ROOM HEATING FOR HEATING LINK FOR SIMULTANEOUS HEATING AND HOT WATER NOTE: ALL EXTERNAL EQUIPMENT TO BE FUSED TO MANUFACTURERS RECOMMENDED FUSE SIZES Groundtherm - Ground Source Heat Pump - Installation...
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Page 16: Optional Weather Compensation
5.4 oPtIonal weatHeR ComPenSatIon The use of a weather compensator with Ideal Groundtherm heat pumps achieves greater efficiency benefits. An example of using the siemens model RVP102 follows. WEATHER COMPENSATOR UNIT LEGEND 1. Setting potentiometer for switching differential. 2. Setting knob for heating curve slope. -
Page 17: Optional Weather Compensator
PERMISSIBLE CABLE LENGTHS TO DETECTORS AND ROOM UNIT CABLE SIZE CABLE LENGTH TERMINALS IN HEAT PUMP TB14 TB15 COPPER CABLE Ø0.6mm (TERMINAL JUNCTION BOX ONLY), SEE NOTE 4. COPPER CABLE 0.5mm² COPPER CABLE 1.0mm² AT9639 COPPER CABLE 1.5mm² 120m Groundtherm - Ground Source Heat Pump - Installation... -
Page 18: Frost Protection Using Thermostats
5.5 FROST PROTECTION USING THERMOSTATS (see external wiring diagram) When a frost stat and pipe stat are fitted to a ground source heat pump they should be wired to the terminal junction box as shown below. TERMINAL JUNCTION BOX FROST STAT e.g HONEYWELL... - Page 19 Advise the user of the precautions necessary to prevent damage to the system and heat pump. e. Explain the function of pump fault light. Groundtherm - Ground Source Heat Pump - Installation...
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Page 20: System Diagram
5.6 SyStem DIaGRam Groundtherm - Ground Source Heat Pump - Installation... - Page 21 Groundtherm - Ground Source Heat Pump - Installation...
- Page 22 Groundtherm - Ground Source Heat Pump - Installation...
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Page 23: Refrigeration Diagrams
FROM GROUND LOOP HEATING FLOW 22mm 22mm EVAPORATOR CONDENSER (PARALLEL FLOW) INSULATION (SERIES FLOW) INSULATION 22mm 22mm HEATING TO GROUND RETURN RETURN WATER LOOP THERMOSTAT PROBE RECEIVER HEATING (25ºC TO 55ºC) PROCESS Groundtherm - Ground Source Heat Pump - Installation... -
Page 24: Data Sheet
6) R134a Global Warming Potential (GWP) 1300. 7) The C.O.P applies to NEW units with CLEAN heat exchangers. 8) Use a tolerance of ± 5% when sizing systems. SPECIFIC PERFORMANCE CURVES CAN BE SUPPLIED BY IDEAL ON REQUEST Groundtherm - Ground Source Heat Pump - Installation... -
Page 25: Ground Collector Information
TYPICAL GshP GROUND COLLECTOR sPECIFICATIONs FOR UK DOMEsTIC INsTALLATIONs Ground source heat pump systems require that geological ground conditions and preferred heat extraction methods are considered strictly in association with the thermal load requirements of the load dwelling and the heat pump coefficient of performance. -
Page 26: Ground Source Fault Finding
1. There can be a delay of between 3 to 10 minutes before the compressors in the units start after a demand is made. 2. The compressors in the ground source heat pumps will cycle on and off according to the return water temperature back to the heat pump. Return temperature achieved will depend on energy dissipated in the system. The more energy dissipated the lower the return temperature. -
Page 27: Water Storage Requirements
6.0 wateR StoRaGe ReqUIRement The heating circulation pump takes hot water from the Groundtherm 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. -
Page 28: Commissioning Checklist
Customer’s Signature (To confirm demonstration of equipment and receipt of appliance instructions) Groundtherm - Ground Source Heat Pump - Installation Notes: [1] Installers should be members of an appropriate Competent Persons Scheme. [2] All installations in England and Wales must be notified to Local Area Building Control (LABC) either directly or through a Competent Persons Scheme. - Page 29 Comments: Comments: Signature: Signature: Service 9 Service 10 Date: Date: Engineer Name: Engineer Name: Company Name: Company Name: Telephone No. Telephone No. Operative ID No. Operative ID No. Comments: Comments: Signature: Signature: Groundtherm - Ground Source Heat Pump - Installation...
- Page 30 Technical Training The Ideal Technical Training Centre offers a series of Manufactured under an IsO 9001 first class training courses for domestic, commercial and registered quality management system industrial heating installers, engineers and system specifiers. For details of courses please ring:....01482 498 432 FM 59915 Ideal Boilers ltd., P.O.