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AN AIR–WATER HEAT PUMP
FOR HEATING AND COOLING WITH A BUILT-IN
Model: LWRc-8kW
Operational Manual (7.4.2014)
•
Read this manual carefully; failure to do so could cause irreversible damage to
your device
•
The REVEL Company will not be liable for any damage caused by the
installation or the assembly of the heat pump in a manner that is
in contradiction with this Operational Manual
•
The effective ambient air temperature must be between -20 °C and + 43 °C
•
The temperature of the water entering the heat pump must not exceed 60 °C
On very cold days the built-in electric boiler or another heat source may be connected
(see the bivalence points on the chart below)
Illustration of the heat pump function
Electric boiler
Hot outlet
water
Return
water
ELECTRIC BOILER
Compressor
Heat transferred
to water
Expansion valve
1
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Summary of Contents for REVELL LWRc-8kW
- Page 1 AN AIR–WATER HEAT PUMP FOR HEATING AND COOLING WITH A BUILT-IN ELECTRIC BOILER Model: LWRc-8kW Operational Manual (7.4.2014) • Read this manual carefully; failure to do so could cause irreversible damage to your device • The REVEL Company will not be liable for any damage caused by the...
- Page 2 LWRc-8kW. It is recommended to use a 5% industrial ethanol as an additive mixture based on its extending of the freeze function and the radical reduction in the tear strength of the ice.
- Page 4 The Heat Pump Control The HP of the LWRc-8kW type comprises a digital controller with a LED panel, which is located inside the building. It is not possible to commission the device without the controller and – as an anti-theft measure – a replacement controller is supplied only against a damaged one.
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Page 6: Setting Mode
Diagram of the control panel 1- The control display Water temperature and time setting Heating Cooling A. When the device is OFF, the display shows the time B. When the device is ON, the display shows the temperature of the water in the buffer tank 2- Setting mode a) Switching between the HEATING / COOLING modes To switch between the HEATING / COOLING modes when the device is ON, press... - Page 7 To change Parameter 15, simultaneously press the keys for a period of 5 seconds. Only then, by using the arrows, can any change be implemented. c) Simplified temperature setting adjustment in the heating mode (also applicable in the cooling mode for Parameter 0) The set value (Parameter 1) is displayed by single pressing of the or the key;...
- Page 8 Parameters Meaning Range Default Note 8 °C～25 °C 20 °C Temperature setting for cooling Adjustable 30 °C～50 °C 35 ℃°C Temperature setting for heating Adjustable 30Min～90Min Defrosting cycle 57Min Adjustable Temperature point for switching ON -30 °C～0 °C -7 °C the defrosting Adjustable Temperature points for switching OFF...
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Page 9: Error Codes
Error Codes Error code Failure description Inlet water sensor failure Outlet water sensor failure Coil pipe sensor failure Return gas temperature sensor failure Air temperature sensor failure Coil pipe sensor failure (heating) Anti-freeze protection Coil pipe sensor failure (cooling) Water temperature sensor failure PP10 Low temperature for floor cooling High pressure protection... -
Page 10: Installation Instructions
(this also depends on the presence of any water surface in the area surrounding the system). Maintenance The LWRc-8kW heat pump is fully automatic. • The input water filter must be cleaned periodically.