: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
21
A10189
Fig. 20 – Reversing Valve (Cooling Mode or Defrost Mode, Solenoid
Energized)
Liquid Line Filter Drier
Filter driers are specifically designed for R-410A refrigerant. Only
operate with the appropriate drier using factory authorized components.
There is a liquid line drier located inside the unit in the compressor
section. The liquid line drier also acts as a strainer.
Suction Line Filter Drier
The suction line drier is specifically designed to operate with R-410A,
use only factory authorized components. Suction line filter drier is used
in cases where acid might occur, such as burnout. Heat pump units must
have the drier installed between the compressor and accumulator only.
Remove after 10 hours of operation. Never leave suction line filter drier
in a system longer than 72 hours (actual time).
Accumulator
The accumulator is specifically designed to operate with R-410A
pressures; use only factory-authorized components. Under some light
load conditions on indoor coils, liquid refrigerant is present in suction
gas returning to compressor. The accumulator stores liquid and allows it
to boil off into a vapor so it can be safely returned to compressor. Since a
compressor is designed to pump refrigerant in its gaseous state,
introduction of liquid into it could cause severe damage or total failure of
compressor.
The accumulator is a passive device which seldom needs replacing.
Occasionally its internal oil return orifice or bleed hole may become
plugged. Some oil is contained in refrigerant returning to compressor. It
cannot boil off in accumulator with liquid refrigerant. The bleed hole
allows a small amount of oil and refrigerant to enter the return line where
velocity of refrigerant returns it to compressor. If bleed hole plugs, oil is
trapped in accumulator, and compressor will eventually fail from lack of
Table 3 – Compressor Information
13.4 SEER2 AC
Unit Size 24 30 36 42 48 60
Type Emerson Scroll Emerson Scroll Emerson Scroll LG Scroll LG Scroll Emerson Scroll
Chassis Size Small Small Small Medium Large Large
Compressor ZP21K6E-PFV-130 ZP25K6E-PFV-13A ZP29K5E-PFV-130 ABG036KAC ABG042KAC ZP49K6E-PFV-130
Manufacturer Oil Type
3MAF Polyolester
Oil (POE)
3MAF Polyolester Oil
(POE)
3MAF Polyolester
Oil (POE)
POE (RB32G) POE (RB32G)
3MAF Polyolester
Oil (POE)
Oil Charge - fl. oz.
(Initial/Recharge)
21 / 17 25 / 21 25 / 19 43.3 / 40.3 43.3. / 40.3 42 / 36
Winding Resistance -ohm
(Start C-R)
1.30 1.02 0.92 0.7 0.57 0.42
Winding Resistance -ohm
(Start C-S)
1.64 1.91 1.58 0.8 1.46 0.93
Winding Resistance -ohm
(Start R-S)
2.94 2.93 2.50 1.50 2.03 1.35
Run Capacitor (mfd / volts) 40 / 370 35 / 370 45 / 370 45 / 440 70 / 370 70 / 370
13.4 SEER2 HP
Unit Size 24 30 36 42 48 60
Type Emerson Scroll Emerson Scroll LG Scroll LG Scroll Emerson Scroll Emerson Scroll
Chassis Size Small Small Medium Large Large Large
Compressor ZP21K6E-PFV-130 ZP27K6E-PFV-130 APG031KAC ABG036KAC ZP42K6E-PFV-130 ZP51K6E-PFV-130
Manufacturer Oil Type
3MAF Polyolester
Oil (POE)
3MAF Polyolester
Oil (POE)
POE (RB32G) POE (RB32G)
3MAF Polyolester
Oil (POE)
3MAF Polyolester
Oil (POE)
Oil Charge - fl. oz.
(Initial/Recharge)
21 / 17 25 / 21 25 / 19 43.3 / 40.3 42 / 36 42 / 36
Winding Resistance -ohm
(Start C-R)
1.30 0.92 0.90 0.7 0.50 0.41
Winding Resistance -ohm
(Start C-S)
1.64 1.58 1.30 0.8 0.81 0.76
Winding Resistance -ohm
(Start R-S)
2.94 2.50 2.20 1.50 1.31 1.17
Run Capacitor (mfd / volts) 40 / 370 40 / 370 45 / 440 45 / 440 70 / 370 70 / 370
FROM INDOOR COIL
TO
ACCUMULATOR
TO OUTDOOR
COIL
TP-4
TP-3
TP-2
TP-1
FROM COMPRESSOR
DISCHARGE LINE
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