Heatcraft Refrigeration Products H-IM-82C 사용자 설명서

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6
Installation and Operations Manual
1.
O
wner's
O
per
ating
Instr
uc
tions
The Outdoor
comes standard with the
following additional components:
 
•  Crankcase Heater
 
•  Drain Line Heater
 
•  Weather Hood
 
•  Fan Cycling
 
 
 
(Pressure on 1 fan models, Pressure and Ambient
on 2 fan models).
Standard Installation Procedure
PTT Models
For outdoor use 
  1.  Provide a 25" X 25" (medium cabinet) or  
 
  25" X 38.5" (large cabinet) opening in the  
 
  roof of walk-in cooler or as specified by the  
 
  panel manufacturer. 
 
  2.  Apply silicone caulk around the perimeter of roof  
 
  opening. Place the curb on roof of cooler. It is  
 
 
  recommended that the curb be fastened to  
 
  the roof panels using non-conductive bolts or  
 
  insulating the bolt  heads. Bolt heads should be  
 
  countersunk or low profile to prevent contact with  
 
  the 
 system. (See Figure 1, page 7) Check the 
 
  top of the curb with a level. 
 units require 
 
  a surface that is within 1° of level or better and no  
 
  more than a 5/8" drop per 3 feet  
 
  (17mm drop per meter). 
 
  3.  Install the membrane onto the roof of the box and  
 
  over the curb. Fasten to roof per panel  
 
  manufacturer's instructions. The membrane  
 
  material should be slit over the evaporator grill  
 
  opening the flaps allowed to drape into the hole  
 
  2" - 4". (See Figure 2, page 7) Care should be taken 
 
  during the membrane installation to prevent  
 
  bunching or folding which could affect the gasket- 
 
  to-curb sealing or trap rainwater adjacent to the  
 
  curb. 
 
  4.  Remove the weather hood from the 
 system. 
 
  The compressor compartment cover(s) should be  
 
  left in place during lifting/rigging. 
 
  5.  Place 
 system onto curbing and center over 
 
  opening in roof box. (See Figure 3, page 7) 
 
  6.  It is recommended that the 
 system be 
 
  secured to the curb with wood screws. Seal  
 
  the screw heads as necessary to prevent  
 
 
  moisture from entering beneath the membrane.  
 
  Additional caulk may be applied around the  
 
  perimeter of the evaporator box gasket. The  
 
  compressor compartment should not be caulked. 
  7.  Install trim pieces (if used) around the ceiling  
 
  opening in cooler.
 
General Safety information:
Do NOT lift the 
 by the weather hood.
This product is not designed to be transported while 
installed or operating.
  8.  Remove compressor compartment cover for 
 
  access to electrical box. 
 
  9.  Connect power wiring in accordance with all  
 
  applicable building and electrical codes.  
 
  10.  Reinstall condensing unit cover(s). 
 
  11.  Reinstall the protective weather hood.  
 
  (See Figure 4, page 7)
 
  12.  Apply power and check for proper operation.
Condensate Drain 
Outlet Location
Drain Line
A condensate drain outlet is located on the side of the 
compressor compartment.  Field piping may be connected 
to the outlet provided it is adequately sloped and heated 
for freezing weather conditions.  There is a drain line "P" trap 
located in the PTT unit.