Installation, Operation and Maintenance Manual
Page
70
of
100
i.
Slide the capacitor rubber boot over the wire connection to cover all capacitor electrical terminal
connections.
j.
Turn power back ON and check the operation of the unit by normal startup.
Definite and General Purpose Contactor Replacement
1.
Turn OFF all remote electric power source to unit before maintenance or servicing.
2.
Use lock-out tag-out protection.
3.
Remove all fan motor and compressor (if installed) fuses for safety reasons. Remember to replace after
finish with change out.
4.
Standard mounting is through the steel contactor base.
5.
Check the replacement contactor to be the same manufacturer, model, size, contact resistive rating,
induction load rating, coil voltage, type and any protective device. The replacement contactor must be U.L.
and CSA approved. Data Aire does not warranty field provided and installed contactors.
6.
Record all wire colors and contactor terminal locations. Often taking a picture of the original connections is
helpful when rewiring.
7.
Disconnect all wires to the contactor.
8.
Check contactor wires and terminals for wear or damage. Repair or replace as needed.
9.
Remove all mounting screws from original the contactor.
10.
Using the existing fasteners, mount the new contactor to the original surface using all contactor mounting
holes locations. Check existing mounting screws for wear or damage. Replace if needed.
11.
Check the contactor is not loose and is level.
12.
Rewire the new contactor per your recorded data and per unit provided wiring diagram.
13.
Check all wire connections to the contactor are tight.
14.
Turn power back ON and test contactor for functionality and operation.
Control and Isolation Transformer Replacement
1.
Turn OFF all remote electric power source to unit before maintenance or servicing.
2.
Use lock-out tag-out protection.
3.
Remove all fan motor and compressor fuses for safety reasons. Remember to replace after finish with
change out.
4.
Standard mounting is through the steel transformer base.
5.
Check the replacement transformer to be the same manufacturer, model, size, load rating, hertz, phase,
type and any protective device. The replacement transformer must be U.L. and CSA approved. Data Aire
does not warranty field provided and installed transformer.
6.
Record all wire colors and contactor terminal locations. Taking a picture of the original connections is helpful
when rewiring.
7.
Disconnect all wires to the transformer.