Page 86
Circuit 1 Oil Equalization Port
Circuit 1 Oil Discharge Port
Circuit 2 Oil Discharge Port
Circuit 2 Oil Equalization Port
(not shown, behind compressor 4)
FIGURE 31
14 - Allow the unit to continue to run in full load for a
minimum of 5 minutes to allow the new oil level
to stabilize. Re-check the oil level of the tandem
compressor assembly.
15 -
on the hose attached to the oil equalization port and
repeat steps 4 - 14 until oil level is in the middle of
the sight glass.
16 -
the oil equalization line..
17 -
pressures to equalize. Disconnect high side
manifold gauge hose from the common discharge
line.
VI-MAINTENANCE
WARNING
Electric shock hazard. Can cause injury
or death. Before attempting to perform
any service or maintenance, turn the
electrical power to unit OFF at disconnect
switch(es). Unit may have multiple power
supplies.
A-Filters
more frequently in severe use) and cleaned or replaced
regularly. Take note of the “AIR FLOW DIRECTION” mark-
B-Lubrication
All motors and blower wheels used in LGH units are lubri-
C-Supply Air Blower Wheel
Annually inspect supply air blower wheel for accumulated
access panel or to clean blower wheel.
D-Evaporator Coil
Inspect and clean coil at beginning of each season. Clean
using mild detergent or commercial coil cleanser. Check
condensate drain pan and line, if necessary. Flush coil
and condensate drain with water taking care not to get in-
lines and coil for evidence of oil and refrigerant leaks.
E-Condenser Coil
Clean condenser coil annually with detergent or commer-
cial coil cleaner and inspect monthly during the cooling
season. Check connecting lines and coil for evidence of
oil and refrigerant leaks.
F-Electrical
1 - Check all wiring for loose connections.
2 - Check for correct voltage at unit (unit operating).
3 - Check amp-draw on both condenser fan motor and
blower motor.
Fan Motor Rating Plate ____ Actual ________
Indoor Blower Motor Rating Plate____ Actual____
To Next Page
Loading...
