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Tradesman Construction Heaters
Owner’s Manual • Tradesman
17
FIG. 12
FIG. 13
■
Tradesman 400:
Limit switch located on burner
plate. See Fig. 14.
FIG. 14
TESTING
The switches should be tested annually.
1. Remove the appropriate switch. Apply a small,soft
fl
ame to the sensing disk of the switch. Be careful not
to melt the switch’s plastic housing when conducting
this test.
2. Within a short time, you should hear the contacts of the
switch opening. Check for continuity across terminals
to ensure the switch has opened.
3. Allow the switch to cool. The switch contacts will
close. Check for electrical continuity across the switch
terminals to ensure contacts have closed.
Igniter
■
Regardless of model, disconnect the ignition cable from
the ignitor. See Fig. 15, Tradesman 170 shown.
a. Tradesman 170 heaters:
-- Remove the screw from the ignitor bracket. See Fig.
15
b. Tradesman 400 heaters:
-- Remove the igniter mounting screw, nut, and washer.
See Fig. 16.
FIG. 15
FIG. 16
1 EACH SPACER AND
NUT PER MOUNTING
SCREW
HEIGHT ADJUSTMENT LEG
1 EACH
SPACER AND
NUT, AND 3
WASHERS PER
MOUNTING
SCREW
P
N
MOUNTING
SCREW
IGNITION
CABLE
WASHER MUST BE LOCATED
BETWEEN IGNITER AND
BURNER PLATE
MOUNTING
SCREW, NUT,
AND WASHER
Содержание Tradesman CP400
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