2.0 GENERAL INFORMATION
2.) Supply air plenum.
3.) Return air grille and integral filter frame.
4.) Hot water heating coils or electric reheaters.
5.) Compressor time delay relay.
6.) Factory wired starter board.
7.) Hot gas by pass, oil separator and suction accumulator.
8.) Copper, hydrophilic fins or tinned coated copper fins.
9.)
Pressure gauges.
10.)
Suction stop valve(s), discharge stop valve(s) and liquid stop valve(s).
11.)
External spring vibration isolators for blower fan and drive assembly.
2.3 RIGGING AND UNCRATING
Each unit has been tested, inspected and properly packed or crated prior to delivery. It is very
important that precaution is taken in handling the units by the installers, movers and riggers.
Lift with slings under the units with a forklift. When lifting with slings, use spreader bars
across the top of the unit to prevent any damage to the frame and panels. Rigging should be
done in a manner to avoid any severe strain or stress on the unit which will scratch the paint
work, damage the panels and framework. Avoid possible surface damage by not removing the
packaging material until the unit is at or near the final location and soon to be installed. Check
the weight of the unit before rigging. Try to place the rigging cable such that the weight is
evenly distributed.
2.4 LIMITATIONS
1.) Avoid excessive condenser water flow rate, low water temperature and low return air
temperature, which may cause low discharge refrigerant pressure, liquid slug back to
compressor and condensate to freeze up the surface of the evaporator coil.
2.) An excessively low gpm with high water temperature may cause compressor shut down on
high-pressure trip.
3.) Avoid too high air face velocity on evaporator coil. Too high air face velocity will create
noise and cause moisture carry over. Maximum face velocity is 600 fpm.
4.) Standard units are not meant for outdoor installation, unless weatherproofing is specified to
factory.
5.) Unit must be operated on the correct electrical supply as specified on unit nameplate.
Voltage limitation for compressor(s) and fan motor must be observed.
