Rheem Raypak Hi Delta 302C, Инструкция по установке и эксплуатации

Страница: 12 / 40

12
Step 9
Step 8
Step 10
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Is there a Call For
Heat at the heater?
Are the 120/24VAC
transformer and 120VAC-
12VDC inverter in the cold
start controller powered?
Replace 120VAC-12VDC
inverter or correct wiring.
Does the cold start 12VDC inverter
output 12VDC to the reset switch
and to common pin FS of the cold
start circuit board?
Does the cold start 120/24VAC
transformer output 24VAC to pin
2 of TB2 and the valve actuator?
Replace transformer or
correct the wiring
Replace circuit board
Are the terminals 1-4 of TB3
connected to N.O. contacts of
DPDT relay?
Does cold start DPDT
relay coil receive 24VAC
from MC on circuit board?
Are terminals 1-4 of TB3
correctly connected back
to the heater?
Call our Technical Service Department
1-805-278-5300
NO
Verify 120VAC at separate
circuit breaker and correct.
YES
Does TB1 of cold start
controller have 120
VAC?
Heater is in standby mode
Correct wiring to
match wiring diagram
YES
NO
NO
YES
YES
NO
NO
NO
YES
YES
NO
The unit is okay
YES
NO
YES
Correct wiring
Is the actuator modulating after
2-1/2 minutes?
NO
Correct wiring
YES
Is the heater tripping the high
limit?
YES
NO
Verify actuator is set to reverse acting
and three-way valve is not installed
backwards.
2” & 2-1/2” valve must
rotate CW on decreasing 0-
10VDC signal. 4” valve will
rotate CCW.
YES
Correct settings or valve
orientation
NO
Is 24VAC present at CFH
terminal on cold start circuit
board?
Check and verify 24VAC between pin 4 and 5
of TB3 in cold start controller and correct.
Is 0-10VDC present at
connection FR of cold start
circuit board?
NO
Replace cold start circuit board
YES
NO
YES
Does cold start circuit board lock-out on
“Sensor out of Range”?
NO
YES
Is sensor resistance correct?
YES
NO
Replace sensor
Is system water
temperature
below 32ºF?
NO
YES
Does the reset switch send
12VDC to terminal FS on the
cold start circuit board?
NO
YES
Cold Water Start Troubleshooting Guide