Spark ignition circuit, Caution, Heater finish – Schwank sportSchwank User Manual

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sportSchwank Manual

IM080731

RD: July 2008

RL: 01A

BA

12. SPARK IGNITION CIRCUIT

The step-up transformer in the ignition control provides spark ignition at 30,000 volts
(open circuit). To check the spark ignition circuit, proceed as follows.

1 Shut off gas supply to the gas control

2 Disconnect the ignition cable at the ignition control stud terminal to isolate the

circuit from the spark igniter or igniter/sensor

3 Prepare a short jumper lead, using heavily insulated wire such as ignition cable

CAUTION

In the next step, DO NOT allow fingers to touch either the

stripped end of the jumper or the stud terminal. This is a very high
voltage circuit and electrical shock, personal injury or death can
result.

1 Perform this test immediately upon energizing the system before the ignition control

goes into safety lockout and interrupts the spark circuit. Touch one end of the
jumper firmly to the ignition control GND terminal. (DO NOT remove the existing
ground lead.) Slowly move the other end of the jumper wire toward the stud
terminal on the ignition control to establish a spark.

2 Pull the wire away from the stud and note the length of gap at which spark stops.

3 A spark length of 1/8 in. (3mm) or more indicates satisfactory voltage output. If no

arc can be established, or the maximum spark is less than 1/8 in. (3mm), and
power to the ignition control input terminals was proved, replace the ignition
control.

13. HEATER FINISH

The sportSchwank is available with the exterior weather enclosure options:



constructed of stainless steel



or constructed of aluminized steel with a black coating

With extended use, exterior heater surfaces may discolor to some extent due to the
impact of heat and the deposit of air born particles that have gone through combustion.
In some environments, the stainless steel lens cover may experience some surface
oxidization and discoloration. These are normal occurrences and in no way affect the
operation of the heater or the manufacturer’s warranty.

OCCASIONAL FINISH MAINTENANCE:

Wear protective gloves, eyewear, and breathing mask when performing finish mainte-
nance. Ensure that power to the heater is disconnected prior to maintenance and the
application of any finish coating. Use a fine steel wool to remove blemishes or un-
sightly deposit, and smooth the outer surface. The black heater finish coat can be
touched up using a high temperature coating that is compatible with the original finish,
such as Thurmalox Stove Paint-Flat Black-1200°F (650°C) or equivalent. No other
coating type or non-high-temperature paint finish may be applied to the heater –
use of an incompatible finish coating could create a hazardous condition such
as fire or noxious fumes, damage the heater, and void the warranty.

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