Carrier 48PG03-16 Controls, Start-Up, Operation, Service And Troubleshooting Instructions page 119

Be sure unit is in normal cooling mode by checking that the RH2
solenoid coil(s) and the CRC relay are deenergized (control
outputs off). Adjust charge per the charging charts as described in
the To Use The Cooling Charging Charts, Standard Unit section.
Switch system to run in the dehumidification mode for 5 minutes.
Dehumidification mode is when the RH2 solenoid coil(s) and the
CRC relay are energized. Switch back to cooling mode to recheck
pressures and temperatures on the charging chart and adjust
charge if necessary. If charge adjustment is necessary, then repeat
the steps in this paragraph until no charge adjustment is
necessary. When no more charge adjustment is necessary after
switching from Dehumidification mode back to Cooling mode,
then charge adjustment procedure is complete. Remove jumper
from the outdoor motor speed controller.
PuronR Refrigerant
Puron refrigerant operates at 50 to 70 percent higher pressures
than R-22. Be sure that servicing equipment and replacement
components are designed to operate with Puron refrigerant. Do
not mix with components that have been used with other
refrigerants. Puron refrigerant, as with other HFCs, is only
compatible with POE oils.
Fig. 56 --- Gas Valve (48PG08- -14 Shown)
Recovery cylinder service pressure rating must be 400 psig.
Puron systems should be charged with liquid refrigerant. Use a
commercial-type metering device in the manifold hose. Manifold
sets should be 750 psig high-side and 200 psig low-side with 520
psig low-side retard. Use hoses with 750 psig service pressure
rating. Leak detectors should be designed to detect HFC
refrigerant.
Table 106—Altitude Compensation*
ELEVATION
(ft)
0-1,999
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
11,000
12,000
13,000
14,000
ELEVATION
(ft)
0-1,999
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
11,000
12,000
13,000
C07043
14,000
ELEVATION
(ft)
0-1,999
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
11,000
12,000
13,000
14,000
*
As the height above sea level increases, there is less oxygen per cubic foot of
air. Therefore, heat input rate should be reduced at higher altitudes. Includes
a 4% input reduction per each 1000 ft.
†Orifices available through your Carrier dealer.
119
48PG03- -07
NATURAL GAS PROPANE
ORIFICE† ORIFICE†
45 52
47 52
47 53
47 53
48 53
48 53
48 53
49 54
49 54
50 54
51 54
51 55
52 55
52 56
48PG08- -14
NATURAL GAS PROPANE
ORIFICE† ORIFICE†
43 50
44 51
44 51
44 51
45 51
45 52
47 52
47 52
47 53
48 53
49 53
50 54
50 54
51 55
48PG08- -16
NATURAL GAS PROPANE
ORIFICE† ORIFICE†
30 38
30 40
31 40
31 41
31 41
31 42
32 42
32 43
32 43
35 44
36 44
37 45
38 46
39 47