Loading ...
Loading ...
Loading ...
6/21 57-02611 / 101628 ©2021, Refrigerated Solutions Group™. All rights reserved. 9
III. Electrical
Electric power supply must match the condensing unit power requirements indicated on the unit data
plate.
A WIRING DIAGRAM IS LOCATED ON THE INSIDE OF THE ELECTRICAL BOX COVER.
All field wiring may enter the holes provided in left side, back and bottom of the electrical box. All field
wiring should be done in a professional manner, in accordance with all governing codes. Double check
all wiring connections, including factory terminals, before start-up of condensing unit.
DANGER
Installation of the refrigeration and electrical components must be performed only by a refrigeration
mechanic or licensed electrician.
Improper or faulty hook-up of electrical components can result in death.
IV. Refrigerant Piping
The condensing unit must remain sealed and pressurized from the manufacturer until piping is complete and final
connections are ready to be made.
Use only refrigeration grade copper tubing, (ACR), type "L", bright annealed, dehydrated, and properly
sealed against contamination. Soft temper tubing may not be used for field interconnection of
refrigeration components (condensing unit to evaporator assembly). Take extreme care to keep
refrigeration tubing clean and dry prior to installation. Use an appropriate size tube cutter (DO NOT
CUT TUBING WITH A SAW).
Note: The liquid line size is determined by conventional piping practices for air and electric defrost (use
chart on pages 15-1). For reverse cycle defrost, the liquid line must be selected by choosing the liquid
line one nominal step larger than the conventional approach.
Suction lines should slope down 1/2 inch for each 10 feet of horizontal run towards the compressor.
If any portion of the suction line rises above the exit elevation of the evaporator, P-type oil traps should be located
at the base of each suction riser for proper oil return to the compressor. An additional trap is needed for every 20
feet of rise and an inverted trap should be installed on the roof
When brazing, dry nitrogen MUST be passed through the lines at low pressure to prevent scaling and oxidation
inside the tubing and fittings. All flux must be removed from the joints after brazing.
MINIMIZE the amount of flux used to prevent internal contamination of the refrigeration system.
Silver brazing wire is to be utilized (high temperature alloy of 15% silver content on all copper-to-copper
connections, and high temperature alloy of 45% silver content on all dissimilar metal connections).
Loading ...
Loading ...
Loading ...