STA-RITE SRC400NA - High Limit Switch

SECTION FOUR – Routine Maintenance and Professional Servicing
LL
LL
oo
oo
cc
cc
aa
aa
tt
tt
ii
ii
oo
oo
nn
nn
The High Limit Switch is located in the lowermost well
of the Manifold under the left-hand Manifold Switch
Cover. It is black to differentiate it from the A GS
Switch, which is marked with a yellow dot.
FF
FF
uu
uu
nn
nn
cc
cc
tt
tt
ii
ii
oo
oo
nn
nn
The High Limit Switch prevents the Heat Exchanger
outlet temperature from exceeding 135° F, ±8° F
(57° C, ±3° C ) .
SS
SS
ee
ee
rr
rr
vv
vv
ii
ii
cc
cc
ii
ii
nn
nn
gg
gg
PP
PP
rr
rr
oo
oo
cc
cc
ee
ee
dd
dd
uu
uu
rr
rr
ee
ee
To replace the High Limit Switch:
1. Turn off the filter pump and all electrical power to
the heater.
2. Unbolt and remove Upper Left and Upper Right
Jackets from the heater to reach switch cover bolt.
3. If the heater is below the pool water level, close iso-
lation valves to avoid draining the pool.
4. Remove the Drain Plug under the Manifold to drain
the heater.
5. Remove the Switch Cover.
6. Disconnect the High Limit wires from the Switch.
7. Unscrew the High Limit Switch from the Manifold.
8. Replace the High Limit Switch by reversing Steps 1
through 7 above. Be sure to teflon tape the threads
when reinstalling the High Limit Switch.
4-7
High Limit Switch
2654 1096
PRE
SS
TA
B
VENT
PILOT
O
F
F
OFF
O
N
ON
High Limit Switch
P/N 42001-0063S