Bell & Gossett V01348H Comfort Trol Zone Control Valve User Manual

Page 4

COMFORT-TROL

VALVE BODY

FIG. 3

V01372

BONNET &

RETAINER

ASSEMBLY

BONNET &

RETAINER

ASSEMBLY

LESS SEAL

GLAND

SEAL GLAND

189139 (CARTON OF

6 V01372)

SPREAD COVER

AT BOTTOM TO

DISENGAGE

LOCKING TABS

AND LIFT UP TO

REMOVE COVER

SQUEEZE

FORMED WIRE

RELEASE TABS

AND LIFT UP

TO REMOVE

OPERATOR

POSITION

INDICATOR

COMFORT-TROL

OPERATOR

{

UNITS WITHOUT HEAT MOTOR ACCESS HOLE

1. Turn Off power to the Comfort-Trol operator.
2. Disconnect power leads from the blade switch terminals.

3. If the valve cover has cooled sufficiently, remove it by spreading the

cover at the bottom to disengage the locking tabs and lifting up.

4. Disconnect the heater leads at the solderless terminals on the

switch assembly inside the operator (Fig. 4, Item 1).

5. The operating spring (Fig. 4, Item 2) is under load and requires

caution when unloading it. Disconnect the spring legs from the

lever by alternately gripping the legs with a pliers (be careful not to

score the spring with the pliers) and forcibly lift them out of their

notch on the lever (Fig. 4, Item 4) lowering them to the frame. In

this position the spring legs will rest on the operator frame outside

of the coated ends of the lever (Fig. 4, Item 3).

6. Disengage the switch plate locking feature (Fig. 5, Item 5) by plac-

ing a common screwdriver under the bottom of the overlapping

tab and lifting up.

7. Before disassembling the operator, note the position of the bot-

tom of the heat motor retaining bracket to the coated ends of the

operating lever (Fig 4, Item 10).

8. Remove the heat motor and bracket assembly.
9. Rotate the heat motor until the notch in the side of the unplated

retaining clip is exposed beyond the plated bracket. Remove the

retaining clip by placing a common screwdriver in the notch and

twisting the screwdriver until the retaining clip pops off.

10. Replace the heat motor with a V01370 replacement heat motor.

The small end of the heat motor must point in the same direction

as the two support legs near the bottom of the plated bracket.

Secure the heat motor by attaching the unplated retaining clip to

the heat motor (Fig, 4, Item 6) on the side of the plated bracket

opposite the large end of the heat motor.

11. Raise the coated ends of the lever, position the heat motor and

bracket assembly so that the small end of the heat motor appears

in the cutout of the main operator assembly (Fig. 4, Item 7) and

the heat motor bracket support legs are situated under the coated

ends of the lever (Fig. 4, Item 10).

12. Attach the switch plate assembly by sliding the side of the assem-

bly to which the switch is attached between the formed wire

release tabs and the main operator assembly until the locking

tabs engage the slots in the switch plate assembly.

13. Complete assembly of the Comfort-Trol operator by closing the

switch plate assembly to the main operator assembly and noting

the following:
a. The two pins or screws under the switch must engage the two

holes in the bottom of the main operator assembly.

b. The finger on one coated end of the lever must be situated

between the two contact arms on the switch (Fig. 4, Item 11).

c. The tab at the bottom of the heat motor retaining bracket must

be seated in the mating seat slot on the bottom of the main

operator assembly (Fig. 4, Item 8).

d. The top of the heat motor retaining clip must be in the top verti

cal position (Fig. 4, Item 9).

e. The spring legs must be outside the coated ends of the lever

(Fig. 4, Item 3).

14. Squeeze both sections of the operator together until the locking

tabs at the top of the switch plate assembly lock over the mating

tab section at the top of the main operator assembly (Fig. 4, Item 5).

15. Attach the heater leads to the solderless terminals on the switch

assembly inside the operator (Fig 4, Item 1), making sure the leads

do not contact the operator frame.

16. Load the valve spring by alternately gripping the legs with a pliers

(be careful not to score the spring with the pliers) and forcibly lift-

ing them off the frame and placing them in their notch in the lever

(Fig. 4, Item 4).

17. Replace the cover by placing the cover on the operator so that

the wide section of the operator frame at the switch end of the

operator (Fig 3, Item F) slips between the end of the cover and the

raised guides located inside and on both sides of the cover. Push

down on the cover until the 3/16" long raised tabs at the bottom

of the cover lock over the underside of the operator.

18. Connect power leads to the blade terminals on the Comfort-Trol

operator by pushing the connectors onto the blades until the lock-

ing catch snaps into place.

19. Restore power.

CAUTION: Burn Hazard. Do not touch the heat motor until

it has cooled to 100°F or less. This could take 10 to 30 min-

utes or longer depending on the ambient temperature. It is heated

by an electrical heater which can become very hot. Failure to fol-

low these instructions could result in property damage and/or

moderate personal injury.

WARNING: Do not insert screwdrivers or other objects into

the operator body to pry the cover off. Movement in the leaf

springs will cause the operator to lose calibration and will cause a

failure in the Comfort-Trol.

CAUTION: Disassembly of the Comfort-Trol Operator will

likely cause the operator to come out of calibration. Replace-

ment of the power pill should be done by a professional with

proper calibration equipment.

FIG. 4

05263:V01348 11/11/02 6/17/09 1:33 PM Page 4

Xylem Inc.

8200 N. Austin Avenue

Morton Grove, Illinois 60053

Phone: (847) 966-3700

Fax: (847) 965-8379

www.xyleminc.com/brands/bellgossett