MN-29805 • Rev 10 • 06/17 • Combitherm CT Express Installation Manual
17
Installation
Wire Connections
Behind the left side panel, check and tighten all electrical connections, and
tighten all electrical screws.
Behind the left side panel, check and tighten all electrical screws.
Behind the control panel, check and tighten all connections on the control board.
Behind the control panel, check and tighten all connections on the options board.
Behind the control panel, check and tighten all connections on the interface board.
Check that the SD card is fully inserted into the interface board.
Comments:
Gas Appliances
With the burner on, check the following:
Static gas pressure at gas valve must be less than 14" W.C.
Dynamic gas pressure at gas valve must be greater than 5.5" W.C. for NG; 9" W.C. for propane
CO
2
flue gas analysis
Were burner adjustments required?
YES
NO
If YES, Record CO
2
values
CTP/CTC Appliance Function Test
Cycle Y1 - Operation fill/Steam injection
YES
NO
Dynamic water pressure with Y1
MEASURE
Cycle Y2 - Operation condensate cooling valve
YES
NO
Dynamic water pressure with Y2
MEASURE
Cycle Y3 - Operation rinse solenoid valve
YES
NO
Dynamic water pressure with Y3
MEASURE
Cycle appliance in steam mode at 212° Fahrenheit (100° Celsius) for 10 minutes.
Did the appliance perform correctly?
PASS
FAIL
Record amperage at all phases:
L1
L2
L3
During the cycle, check CTP motor rotation: 3 minutes clockwise - break - 3 minutes
counter-clockwise
PASS
FAIL
Cycle appliance in convection mode at 350° Fahrenheit (175° Celsius) for 10 minutes.
Did it perform correctly?
PASS
FAIL
Record amperage at all phases:
L1
L2
L3
Cycle appliance in combination mode at 400° Fahrenheit (205° Celsius) for 10 minutes.
Did it perform correctly?
PASS
FAIL
Record amperage at all phases:
L1
L2
L3
Check motor rotation for CTC models.
Note: Arrows on the motor housing indicate proper rotation.
PASS
FAIL
Check all lines and connections for leaks, both inside and outside of the combi appliance.
PASS
FAIL
Function Test Checklist