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SECTION 4. OUTDOOR UNIT IS BELOW THE INDOOR UNIT
Accessory
Air Conditioner (AC)
Heat Pump (HP)
Crankcase Heater
(40 watts minimum)
Yes
Yes
Hard Start Assist
Yes
(See manual for each product)
Yes
(See manual for each product)
TXV (Indoor)
Yes
Yes
Liquid Line Solenoid at Outdoor
(Kit # LSK02*)
Yes
Yes *See Note 5
Inverted Refrigerant Trap at Indoor
Yes
Yes
Oil Trap at Indoor
No
No
1. The maximum elevation (vertical) difference between the outdoor unit and the indoor unit is 80 feet (24.4 m).
2. Suction line must be installed in a manner to prevent liquid migration to the outdoor unit from the indoor unit (see following
note 3).
3. An inverted suction line trap must be installed on the suction line just before the inlet to the indoor unit (see Figure 4-1).
The top of the inverted loop must be slightly above the top of the indoor unit coil and can be created simply by brazing two
90° long radius elbows together if a bending tool is unavailable. Properly support and secure the inverted loop to the
nearest point on the indoor unit or adjacent structure.
4. An accumulator is required to be added (external to the outdoor unit, within 2 linear feet (61 linear centimeters) of the
outdoor unit) for air conditioning installations. See Table 4-1 for accumulator selection. Adapter fittings at the accumula-
tor connection may be required. Do NOT install an accumulator in the suction line set in heat pump applications.
5. Liquid Line Solenoid not required if non-bleed TXV is used on the outdoor unit.
L
H
L = Length of trap must be more than Indoor Unit Height (H)
Figure 4-1. Indoor Unit with Inverted Suction
oz.
lb.
kg.
Part Number
Connection
Part Number
Connection
112
7
3.2
0151R00004P
3/4"
0151R00004P
3/4"
144
9
4.1
B1226206
3/4"
0151R00004P
3/4"
176
11
5.0
B1226207
7/8"
B1226206
3/4"
208
13
5.9
0151L00008
7/8"
B1226206
3/4"
240
15
6.8
0151L00009
7/8"
B1226207
7/8"
288
18
8.2
0151L00001
1 1/8"
0151L00008
7/8"
352
22
10.0
0151L00010
7/8"
0151L00001
1 1/8"
480
30
13.6
0151L00010
7/8"
0151L00010
7/8"
Goodman Accumulator
Preferred
Minimum
Total System Refrigerant Charge
Table 4-1. Accumulator Size
Содержание RR20AVAK9
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Страница 25: ...25 APPENDIX LONG LINE SET APPLICATION R 410A ...
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