18
For applications that are considered to have a long
line set with the outdoor unit below the indoor unit
the following is required:
• EXV or TXV on the indoor coil.
• Crankcase heater (Some models have factory in-
stalled CCH's. Refer to tables in Section 4.4.5.6.)
• Start components may be required depending
upon quality of voltage (consistantly <200vac at
outdoor unit)
• Refrigerant lines should be routed even with the
top of the indoor coil or an inverted trap is to be
applied (refer to Figure 4).
• Insulated liquid line in unconditioned space only.
• Insulated suction line full length.
• Follow the proper line sizing, maximum linear
and equivalent lengths, charging requirements,
and oil level adjustments spelled out in this man-
ual.
• Verify at least 5°F [2.8°C] liquid sub-cooling at
the indoor unit prior to expansion device.
Figure 4
67$
OUTDOOR UNIT BELOW INDOOR SECTION LINE SET
5287(
5(),*(5$17/,1(6
(9(1:,7+7232)
&2,/25,167$//
,19(57('75$3
,168/$7(
/,48,'/,1(
,181&21',7,21('
63$&(
5()(5(1&(7$%/()25
0$;,080/(1*7+
/,0,7$7,216
$1'9(57,&$/6(3$5$7,21
(;9257;9
21,1'225&2,/
9(5,)<68%&22/,1*
35,2572(;3$16,21
'(9,&(
,168/$7('68&7,21
/,1()8///(1*7+
4.5 Line Set Installation (cont.)
4.0 INSTALLATION
4.5.2.2 Outdoor Unit Below Indoor Unit
Tubing
To Next Page
Loading...
Need help?
General