Carrier 69NT40-489-100 Series - Refrigeration System Data

T-305
11
2.2 REFRIGERATION SYSTEM DATA
a. Compressor/Motor
Assembly
Number of Cylinders 6
Model 06DR
CFM 41
Weight (Dry) 118kg(260lb)
Approved Oil Castrol Icematic -- SW20
Oil Charge 3.6 liters (7.6 U.S. pints)
Oil Sight Glass
The oil level range, with the compressor off,
should be between the bottom and one-eighth
level of the sight glass.
b. Expansion Valve Superheat
Verify at --18 _C
(0 _F) container box
temperature
4.5to6.7_C(8to12_F)
c. Heater Termination Thermostat
Opens
54 (¦ 3) _C = 130 (¦ 5) _F
Closes
38 (¦ 4) _C = 100 (¦ 7) _F
d. High Pressure Switch
Cutout
25 (¦ 1.0) kg/cm@ = 350 (¦ 10) psig
Cut-In
18 (¦ 0.7) kg/cm@ = 250 (¦ 10) psig
e. Refrigerant Charge
Unit Configuration
Charge Requirements -- R-134a
2row
condenser
3row
condenser
4row
condenser
Water-Cooled
Condenser
4.5 kg
(9.0 lbs)
4.9 kg
(10.75 lbs)
5.2 kg
(11.5 lbs)
Receiver
3.7 kg
(8.3 lbs)
4.0 kg
(8.8 lbs)
4.9 kg
(10.8 lbs)
NOTE
When replacing the following components (f.), (g.) and (h.) , refer to the installation instructions included with
the replacement part for additional information.
f. Fusible Plug
Melting point 99 _C = (210 _F)
Torque 6.2 to 6.9 mkg (45 to 50 ft-lbs)
g. Sight Glass/Moisture Indicator Torque 8.9 to 9.7 mkg (65 to 70 ft-lbs)
h. Rupture Disc
Bursts at
35 ¦ 5% kg/cm@ = (500 ¦ 5% psig)
Torque
(P/N 14-00215-03)
1.4to2mkg(10to15ft-lbs)
Torque
(P/N 14-00215-04*)
6.2 to 6.9 mkg (45 to 50 ft-lbs)
i. Condenser Pressure
Transducer
Condenser Fan Starts
The condenser fan will start if the condenser
pressure is greater than 14.06 kg/cm@ (200
psig) OR the condenser fan is OFF for more
than 60 seconds.
Condenser Fan Stops
The condenser fan will stop if the condenser
pressure is less than 9.14 kg/cm@ (130 psig)
AND the condenser fan remains ON for at least
30 seconds.
j. Unit Weight Refer to unit model number plate.
k. Water Pressure Switch
Cut-In
0.5 ¦ 0.2 kg/cm@ (7 ¦ 3psig)
Cutout
1.6 ¦ 0.4 kg/cm@ (22 ¦ 5psig)
l. Discharge Pressure Regulator Factory Setting
32.7 ¦ 2.5 kg/cm@ (72¦ 5.5 psig)
* Rupture Disc, part number 14--00215--04 may be installed as an alternate for the receiver mounted fusible plug.