Carrier 69NT40-561-300, Operation And Service Manual

Page: 28 / 174

T-365 3–6
3.2 REFRIGERATION SYSTEM DATA
Table 3–1 Refrigeration System Data
Compressor/Motor Assembly
Model Number ZMD26K2E-TFD-274
Weight (With Oil) 42.9 kg (95 lb)
Approved Oil Uniqema Emkarate RL-32-3MAF
Oil Charge 1774 ml (60 ounces)
Electronic Expansion Valve
Superheat (Evaporator)
Verify at -18°C (0°F)
container box tempera-
ture
4.4 to 6.7°C (8 to 12°F)
High Pressure Expansion Valve
(HPXV)
Verify at -18°C (0°F)
container box tempera-
ture
4.4 to 11.1°C (8 to 20°F)
Heater Termination Thermostat
(HTT)
Opens 54° (+/ - 3) C = 130° (+/ - 5) F
Closes 38° (+/ - 4) C = 100° (+/ - 7) F
High Pressure Switch (HPS)
Cut - Out (+/- 1.0) kg/cm
2
= 350 (+/- 10) psig
Cut - In (+/- 0.7) kg/cm
2
= 250 (+/- 10) psig
WARNING
!
EXPLOSION HAZARD: Failure to follow this WARNING can result in death, serious personal
injury and / or property damage.
Never use air or gas mixtures containing oxygen (O
2
) for leak testing or operating the product.
Charge Only With R-134a: Refrigerant must conform to AHRI Standard 700 specification.
Refrigerant R-134a
Conforming to AHRI standard 700 specifica-
tions.
CAUTION
!
Charge water-cooled condenser or receiver according to nameplate specifications to ensure
optimal unit performance.
Refrigerant Charge Receiver 4.54kg (10 lbs)
Fusible Plug
Melting Point 99°C = (210°F)
Torque 6.2 to 6.9 mkg (45 to 50 ft-lbs)
Rupture Disc
Bursts at 35 +/- 5% kg/cm
2
= (500 +/- 5% psig)
Torque 6.2 to 6.9 mkg (45 to 50 ft-lbs)
Unit Weight Refer to unit model number plate.
Water Pressure Switch
Cut-In 0.5 +/- 0.2 kg/cm
2
(7 +/- 3 psig)
Cutout 1.6 +/- 0.4 kg/cm
2
(22 +/- 5 psig)