IMPORTANT – READ BEFORE INSTALLING
INSTALLATION INSTRUCTIONS
A. RECEIVING AND INSPECTION
1.
Immediately upon receiving shipment, equipment should be inspected for evidence of any damage received in transit. If shipping
damage has occurred, a claim should be made with the transportation company, and the local Rite-Temp representative should be
advised of nature of damage.
2.
Equipment should be inspected for compliance with original order acknowledgement (equipment model numbers, voltages, etc.).
B. RIGGING
1.
Equipment should be lifted in a near level condition to prevent undue stress on structural members.
C. MOUNTING
1. Equipment should be mounted on a smooth, hard, level surface.
2.
Mounting surface should be rigid, and provisions should be made to prevent noise transmission (structural) to surrounding areas.
3.
Air cooled equipment should not be installed under low structural overhangs which can cause condenser air recirculation or
restriction.
4.
Adequate Area (approx. 1 unit width) must be provided around equipment for unrestricted air flow and service. Two units side by
side should have a minimum of 1 ½ unit width between them.
5.
Care should be taken to prevent air from other sources from entering condenser if this air is at an elevated temperature.
6.
Indoor design equipment must be installed in a protected enclosure.
D. PIPING
1.
All piping must be in accordance with applicable local and state codes.
2.
Refrigerant piping (split systems) should be designed and installed in accordance with recommended practices as outlined in ARI
or ASHRE piping guide.
(Engineering Guide #1 for air conditioning systems.)
3.
Water piping (Chillers) should be designed and installed to meet application requirements. Provisions (Ethylene or Propylene
Glycol) must be made to prevent freezing if design ambient temperatures dictate.
4.
When piping is completed, a thorough leak test should be performed before evacuation start-up. Do not exceed 150 psig test
pressure on low side of system.
E. WIRING
1.
All local and state codes must be strictly adhered to and good electrical practices should be followed to achieve the best
installation possible.
2.
Power wiring to equipment must be adequately sized for minimum ampacity as shown on unit nameplate. A disconnect should be
located adjacent to unit for both safety and servicing purposes.
3.
Equipment wiring diagram should be examined and thoroughly understood before field wiring connections are made.
4.
Power supply should be checked to be certain that supply voltage agrees with equipment nameplate. Serious damage to
compressors and motors can occur if improper voltage is applied.
5.
Use copper conductors ONLY.
F. ROTATION DIRECTION OF THREE PHASE SCROLL COMPRESSORS
1.
Scroll compressors will only compress in one rotational direction. Direction of rotation is not an issue with single phase
compressors since they will always start and run in the proper direction. Three phase compressors will run in either direction
depending upon the phasing of the power.
Verification of proper rotational direction must be made
by observing that the
suction pressure drops and the discharge pressure rises when the compressor is energized. Reverse rotation also results in an
elevated sound level as well as substantially reduced current draw compared to forward rotation.
