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© 2020 Carrier
POWER PACK INSPECTION AND MAINTENANCE
The following steps describe power pack inspection and maintenance.
1.
Disconnect all electric power from the power pack, and ensure that all residual voltage is dissi-
pated. (See Safety section.)
2.
Open the power pack door.
3.
Test capacitor C1 for resistance across terminals 1 and 2.
4.
Test transformer T1 for resistance at the two red secondary leads.
5.
An open circuit reading on capacitor C1 and/or a low resistance value reading at transformer T1
indicates a normal condition. If a normal condition is present, circuitry problems could exist
elsewhere. Replace the power pack.
The power pack generally does not need periodic maintenance other than cleaning the exterior and
checking the hinged cover for proper closure and sealing.
SPARK GAP OPERATION VERIFICATION
A visible flashing of the ceramic spark gap or spark gap tube indicates the presence of electric-dis-
charge voltage and delivery to the spark tip. This is viewed with the power pack door open.
CABLE INSPECTION AND MAINTENANCE
Inspect the cable for fraying or lose connections. Replace frayed cable.
RECOMMENDED SPARE PARTS
The following recommended spare parts table advises of the minimum stock level of replacement
parts that should be in the customer’s stock for system start-up and the first year of operation. Rec-
ommended replacement parts should be ordered as necessary to maintain the suggested level of spare
parts.
Item
Part Number
Quantity
Spark Tip, Short (Spark Rods 36” and shorter)
145-18
1 for every 4 igniters
Spark Tip, Long (Spark Rods greater than 36”)
145-19
1 for every 4 igniters
Solenoid & Coil for Retract Assembly, 110 vac
8-705
1 for every 5 igniters
Solenoid & Coil for Retract Assembly, 220 vac
8-706
1 for every 5 igniters
Coil Only for Retract Assembly, 110 vac
70-426
1 for every 5 igniters
Coil Only for Retract Assembly, 220 vac
70-427
1 for every 5 igniters
Powerpack Spark Gap Tube Replacement Kit
129-174
1 for every 5 igniters
Powerpack Capacitor
7-1738
1 for every 5 igniter
Powerpack Transformer
5-563
1 for every 5 igniters
