Thermo King CSR Series User Manual

MP-3000 Controller
86
P1.11
Low Pressure Test
Activated
0.8 A 0.7 A 0.8 A
Condenser fan, compressor and liquid
injection valve remain on. Stepper valve is
closed (set to 100 value) and low
pressure cutout is verified to open.
31 10 seconds
P1.12
Warm Gas Bypass
Valve Activated
8.3 A 8.2 A 8.3 A
With condenser fan and compressor on,
compressor is operated at 25% capacity.
Liquid injection valve is off. Bypass valve
is turned on. Amp draw measured and
verified to be a minimum of 0.2 amps
higher that test P1.09.
30 10 seconds
P1.13
Compressor High Pressure
Activated
12.2 A 12.0 A 12.2 A
Stepper valve opened to 50% capacity.
With compressor on, evaporator fan
operates on high speed until high
pressure cutout occurs, causing
significant amps drop. Maximum time
depends on condenser coil temperature
at start of test.
53
10 to 300
Seconds
P1.13
Compressor High Pressure
Activated
4.5 A 4.4 A 4.5 A
With compressor off, condenser fan starts
and operates until compressor starts,
causing a significant amps increase.
Compressor is then turned off. Condenser
fan operates 60 seconds more to lower
condenser temperature.
54
10 to 50
Seconds
plus 60
Seconds
P1.14
Evaporator Fan Low
Activated
1.1 A 1.0 A 1.1 A
Condenser fan and compressor are
turned off. With evaporator fan on low
speed, Amp draw is measured and
compared to voltage and frequency:
• CSR40:
1.0 Amps approx. at 50 Hz,
1.0 Amps approx. at 60 Hz
• CSR20SL and CSR40SL:
1.5 Amps approx. at 50 Hz,
1.6 Amps approx. at 60 Hz
Evaporator fan low amperes are recorded
in the PTI log.
14, 15 10 Seconds
P1.15
Capacity Test 1
Activated
12.1 A 12.0 A 12.1 A
With condenser fan on, compressor on,
and evaporator fans on low speed,
stepper valve is set to 50% capacity.
Liquid injection valve is turned on. A
difference of approx. 4.5 C (8.0 F) is
required between return and supply air
temperatures, depending on return air
and condenser coil temperatures.
22
3 Minutes
(4 Minutes
on CRR20)
P1.16
Capacity Test 2
Activated
13.2 A 13.0 A 13.2 A
With condenser fan on, compressor on,
liquid injection valve on and stepper valve
set to 50% capacity, evaporator fans are
changed to high speed. A difference of
approx. 3.0 C (5.4 F) is required between
return and supply air temperatures,
depending on return air and condenser
coil temperatures. However, temperature
difference must be less than in test P1.15.
23 2 Minutes
CSR Pre-trip (PTI) Test Procedure (Continued)
LED
Display
(Test No.)
LCD Display
(Shows Approx. Amps for
460V, 60 Hz Unit)
Test Description
Possible
Alarms
Duration
(Time)

Thermo King CSR Series Specifications

General

Brand	Thermo King
Model	CSR Series
Category	Refrigerator
Language	English