STA-RITE SR200NA Service Manual page 57

SECTION FOUR – Routine Maintenance and Professional Servicing
Thermal Regulator
N T
VE
T
PI LO
L L L L o o o o c c c c a a a a t t t t i i i i o o o o n n n n
The Thermal Regulator is located behind the threaded
plug in the Inlet/Outlet Manifold between the inlet and
outlet fittings. It is held in place by a spring.
F F F F u u u u n n n n c c c c t t t t i i i i o o o o n n n n
The Thermal Regulator is a thermostatically activated
valve that throttles water flow to maintain the Heat
Exchanger Outlet temperature above 120°F.
S S S S e e e e r r r r v v v v i i i i c c c c i i i i n n n n g g g g P P P P r r r r o o o o c c c c e e e e d d d d u u u u r r r r e e e e
The Thermal Regulator is nonserviceable; it must be
replaced if it is defective.
To replace the Thermal Regulator:
1. Turn off the filter pump and all electrical power to
the heater.
2. If the heater is below the water level of the pool,
close isolation valves to avoid draining the pool.
3. Open the Drain Cock under the Manifold Adapter
or remove the Drain Plug under the Manifold to
drain the heater.
4. Unscrew the Thermal Regulator Plug.
S S S S a a a a f f f f e e e e t t t t y y y y P P P P r r r r e e e e c c c c a a a a u u u u t t t t i i i i o o o o n n n n s s s s : : : :
The Thermal Regulator plug has a
spring behind it. Restrain it when removing it from
the Manifold to prevent it from flying and possibly
injuring persons nearby.
(All Heaters)
Thermal Regulator Kit
S
ES
PR
B
TA
P/N 77707-0010
(Plug only)
2660 1096
T T T T h h h h e e e e T T T T h h h h e e e e r r r r m m m m a a a a l l l l R R R R e e e e g g g g u u u u l l l l a a a a t t t t o o o o r r r r S S S S p p p p r r r r i i i i n n n n g g g g i i i i s s s s b b b b e e e e h h h h i i i i n n n n d d d d
t t t t h h h h e e e e p p p p l l l l u u u u g g g g a a a a n n n n d d d d w w w w i i i i l l l l l l l l c c c c a a a a u u u u s s s s e e e e t t t t h h h h e e e e p p p p l l l l u u u u g g g g t t t t o o o o f f f f l l l l y y y y i i i i f f f f n n n n o o o o t t t t
r r r r e e e e s s s s t t t t r r r r a a a a i i i i n n n n e e e e d d d d . . . .
5. Remove the Thermal Regulator along with the
spring attached to it.
6. Install a new Thermal Regulator by reversing Steps
1 through 5 above.
N N N N O O O O T T T T E E E E : : : : When installing a new Thermal Regulator,
attach it to the spring with C-clip (supplied) to help
with installation and removal. Make sure that the
Thermal Regulator seats in the Baffle Plate port. If the
port has a flat side, the frame on the Regulator must be
turned to clear the flat (See illustration above).
4-25
Rotate regulator
until moving parts
clear the flat side
of the hole