0 check refrigerant pressure and temperatures, Check refrigerant pressure, Figure 3e - three single circuits – Reznor MAPSII Series REDA Users Manual User Manual
Page 9
Form RZ-NA O-MAPS II, P/N 209179 R7, Page 9
CKT D
FIGURE 3E - Three
Single Circuits
Discharge
Discharge
Discharge
Liquid
Liquid
Liquid
Ckt B
Twinned
Ckt D
Ckt A
Airflow
Airflow
Model 164
FIGURE 3D -
One Twinned
Circuit, B is 6.2
tons; and Two
Single Circuits,
A is 4.5 tons and
D is 3 tons
FIGURE 3F - Two
Twinned Circuits
Discharge
Liquid
Discharge
Liquid
Ckt B
Twinned
Ckt A
Twinned
Airflow
Airflow
Discharge
Discharge
Discharge
Liquid
Liquid
Liquid
Ckt B
Twinned
Ckt C
Ckt A
Airflow
Airflow
Models 166, 188
FIGURE
3G - Two
Single
Circuits, C
is 3 tons; A
is 4.5 tons;
and One
Twinned
Circuit; B
is 6.2 tons
Ckt A Discharge
Ckt A
Liquid
Ckt B
Discharge
Ckt B
Liquid
Model Sizes 176 and 230
Airflow
Airflow
FIGURE 3H -
Two Twinned
Cooling
Circuits;
A is 4.5 tons;
Circuit B is
10 tons
Ckt C
Discharge
Ckt C
Liquid
Ckt A
Discharge
Ckt A
Liquid
Model Sizes 226 and 280
Ckt A has tandem compressors.
Airflow
Airflow
FIGURE 3J -
Two Twinned
Cooling
Circuits; A
is 12.4 tons
(two 6.2t
tandem com-
pressors)
and Circuit B
is 12 tons
Model Sizes 292 and 346
Ckt A has tandem compressors.
Ckt C
Discharge
Ckt C
Liquid
Ckt A
Discharge
Ckt A
Liquid
Airflow
Airflow
FIGURE
3K - Two
Single
Cooling
Circuits;
A is 12.4
tons
(two 6.2t
tandem
compres-
sors) and
Circuit B
is 12 tons
FIGURE
3L - Three
Single
Cooling
Circuits; A
is 10 tons,
Circuit B
is 10 tons,
and Circuit
C is 10 tons
Model Sizes 374, 428, and 446
Ckt C
Discharge
Ckt C
Liquid
Ckt B
Discharge
Ckt B
Liquid
Ckt A
Discharge
Ckt A
Liquid
Airflow
Airflow
Size Ckt A Ckt B Ckt D
139 4.5 ton 4.5 ton 3 ton
Sizes
Ckt A Ckt B
109
6.2 ton 3 ton
120, 144 6.2 ton 4.5 ton
6.0 Check
Refrigerant
Pressure and
Temperatures
Check Refrigerant
Pressure
IMPORTANT: Do not release refrigerant to the atmosphere!
If required service procedures include the adding or remov-
ing of refrigerant, the qualified HVAC service technician must
comply with all federal, state or provincial, and local laws.
Refer to
FIGURE 4A or 4B for required pressure for cooling systems designed
for humid/temperature climates (Sizes 060, 078, 090, 108, 120, 164, 166, 184,
and 198 and the cooling circuit in all systems with a reheat cycle).
Refer to
FIGURE 5A or 5B for required pressure for cooling systems designed
for a dry climate (Model RCA/RDCA/RECA 025, 037, 059, 077, 109, 139).
Refer to
FIGURE 6A or 6B for the re-heat heat pump circuit pressure (All RDA/
RDDA/REDA Models).
Connect the pressure gauge and check the pressures.