Northern Heatpump NorthStar RD-WE-096 Installation & Operating Instructions Manual - page 3
09/11/2014
1
NI701
Introduction
When used and controlled properly, geothermal heat pumps can save hundreds of dollars per year. NorthStar
Series
geothermal heat pumps are designed to provide maximum efficiency, comfort, and reliability. Solid and
simple electric controls allow for low maintenance and built in safety protection.
Compressor safety and limit shutdown is included with the standard ICM control board. However, operational
control is considerably simpler and limited to an aquastat type contact closure wired between terminal block R
and HW screws. Cooling is activated with a contact closure between R and O.
The RD-WE Series is commonly referred to as “Dual Compressor”. This is more than two compressors; it is
two complete refrigerant loop systems, feeding through a single but isolated two section heat exchanger. This
provides increased efficiency plus each operates independently and can serve as a failure backup.
Pump (loop and hydronic) connections are provided, with inline fuses.
Moving and Storage
Units should be stored in original packaging in a clean dry area. Store and move units in normal upright
position. Do not stack units.
Initial Inspection
Be certain to inspect all cartons and crates as units are received before signing the freight bill. Verify that all
items received have no physical damage. Report any damages or shortages on the freight bill. The purchaser is
responsible for filing the necessary claims with the carrier. Concealed or hidden damages not discovered until
removing packaging must be reported to the carrier within 15 days of receipt.
Unit Location and Mounting
Locate the unit in an indoor area where the ambient temperature will remain above 45°F [8°C]. Northern Heat
Pump provides 4 removable panels (all 4 sides) for servicing ease. This unit is zero clearance rated; however,
allow enough room to remove panels for service and maintenance. Suggest setting unit on a sound vibration
pad, see accessories price sheet, R-PAD-2735-1-**. Water supply should not be hard plumbed directly with
copper pipe as this could transfer any vibration to living space.
Please read and understand conditions associated with proper installation, unauthorized changes, and POWER ON
procedures.
Warranty Statement
See the last pages of this manual for detailed limited warranty coverage explanation.
Safety Considerations
WARNING
BEFORE PERFORMING SERVICE OR MAINTENANCE OPERATIONS ON A SYSTEM, TURN OFF
MAIN POWER SWITCHES TO THE INDOOR UNIT. IF APPLICABLE, TURN OFF THE ACCESSORY
HEATER POWER SWITCH. ELECTRICAL SHOCK COULD CAUSE PERSONAL INJURY.
Installing and servicing heating and air conditioning equipment can be hazardous due to system pressure and
electrical components. Only trained and qualified service personnel should install, repair or service heating and
air conditioning equipment. Untrained personnel can perform the basic maintenance functions of cleaning coils
and cleaning and replacing filters. All other operations should be performed by trained service personnel. When
working on heating and air conditioning equipment, observe precautions in the literature, tags and labels
attached to the unit and other safety precautions that may apply, such as the following safety measures:
Follow all safety codes.
Wear safety glasses and work gloves.
Use a quenching cloth for brazing operations.
Have a fire extinguisher available for all brazing operations.