Install Instructions

ManualsBrandsBell & Gossett ManualsHeating SuppliesHeat Motor Assembly for Comfort-Trol Zone Valve

PERFORMANCE CHARACTERISTICS:

Maximum differential shut off pressure: 35 PSIG

WORKING PRESSURE & TEMPERATURE LIMITS

(SOLDER TYPE LIMITS FOR ASTM STD. B16.18)

Maximum ambient temperature: 125°F.

Electrical rating: 24 Volt 50/60 Cycle, 1Ø, 15VA AC

INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.

Installation, Operation and Service Instructions

Comfort-Trol

Zone Control Valve

SAFETY

INSTRUCTION

This safety alert symbol will be used in this manual to draw attention

to safety related instructions. When used, the safety alert symbol

means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!

FAILURE TO FOLLOW THE INSTRUCTIONS MAY RESULT IN A

SAFETY HAZARD.

DESCRIPTION

A two wire heat motor operated valve designed for Hydronic Heating/

Cooling Systems.

THERMOSTAT

24 Volt two wire with 0.6 ampere heat anticipator setting.

TRANSFORMER

115/24 volt rated at 40 VA for a maximum of three Comfort-Trol Zone

Valves. Note: This transformer must be dedicated to the Comfort-Trol

Zone Valves and not be used to power any other device.

CAUTION: Heat associated with the use of silver solder will

damage the Comfort-Trol and void the product warranty.

Use only the low temperature solder specified. Failure to follow

these instructions could result in property damage and/or moder-

ate personal injury.

WARNING: Solder joints will fail if used at pressures or tem-

peratures above those listed in the above table. Do not

exceed the temperature and pressure limitations. Failure to follow

the above instruction can cause the joint to fail resulting in serious

personal injury and/or property damage.

WARNING: Hazardous conditions could occur if the follow-

ing notes are not adhered to:

WARNING NOTES:

READ PRIOR TO INSTALLING COMFORT-TROL

1. Do not install Comfort-Trol in a dusty area or in an area where

the flow of air to the operator is restricted because erratic

operation or premature failure may occur.

2. Use 95-5 (Tin-Antimony) solder and a good grad of flux to

solder the Comfort-Trol valve body into the system.

NOTE: a. Remove the brass bonnet and retainer assembly

from the valve body before applying heat to the

body. Failure to do so will damage the valve seals

and discs.

b. Excessive use of solder in a vertical installation may

result in damage to the valve seat.

c. Avoid excessive use of flux.

d. Heat associated with the use of silver solder may

damage the Comfort-Trol.

3. Do not install a jumper wire between terminals #1 and #2

because the thermostat heat anticipator may burn out when

the Comfort-Trol operator is energized.

4. Keep external wiring from contacting the Comfort-Trol operator

cover by securing the wiring to a nearby support.

5. Use only silicone grease to lubricate the valve gland pin and

O-ring seals. Do not use lubricants with a petroleum base. The

use of a petroleum base lubricant will cause swelling and fail-

ure of U-rings.

6. Do not insulate the Comfort-Trol Zone Valve Operator.

7. Use of additives to the system may be harmful to the Comfort-Trol.

Failure to follow these instructions could result in serious personal

injury or death and property damage.

PATENT NO’S. 4,553,733 AND 4,560,140

TYPE OF

MAXIMUM LIMITATIONS

SOLDER PRESSURE PSI TEMPERATURE °F

95-5

TIN- 125 240

ANTIMONY

Bell & Gossett

Instruction Manual V01348

REVISION G

WARNING LABEL PART NO. V56871

INSTALLED IN THIS LOCATION.

IF MISSING IT MUST BE REPLACED.

Summary of content (4 pages)

PAGE 1
Bell & Gossett® Instruction Manual V01348 REVISION G WARNING LABEL PART NO. V56871 INSTALLED IN THIS LOCATION. IF MISSING IT MUST BE REPLACED. ® Comfort-Trol Zone Control Valve PATENT NO’S. 4,553,733 AND 4,560,140 Installation, Operation and Service Instructions INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE. DESCRIPTION THERMOSTAT A two wire heat motor operated valve designed for Hydronic Heating/ Cooling Systems. 24 Volt two wire with 0.6 ampere heat anticipator setting.
PAGE 2
INSTALLATION INSTRUCTIONS The B&G Comfort-Trol Zone Valve can be installed horizontally or vertically. However, the following precautions should be taken: When installing the valve in a vertical position, the electrical connections must be at the top of the operator. On chilled water applications the operator should be above the pipe centerline. If the valves are installed near the boiler, locate them a sufficient distance from the breeching so they are not affected by flue temperatures. FIG. 1 4.
PAGE 3
SERVICE INSTRUCTIONS Comfort-Trol Zone Control Valves are designed for fast and easy maintenance with a standard screwdriver and pliers. It is recommended that the Comfort-Trol be inspected periodically for signs of leakage, corrosion or other damage. WARNING: Corrosion or leakage are indications that the Comfort-Trol may be about to cause serious damage from leakage or rupture. It should be periodically inspected and if noted the Comfort-Trol must be serviced or replaced.
PAGE 4
FIG. 3 SPREAD COVER AT BOTTOM TO DISENGAGE LOCKING TABS AND LIFT UP TO REMOVE COVER F SQUEEZE FORMED WIRE RELEASE TABS AND LIFT UP TO REMOVE OPERATOR E POSITION INDICATOR COMFORT-TROL OPERATOR 1. Turn Off power to the Comfort-Trol operator. 2. Disconnect power leads from the blade switch terminals. CAUTION: Burn Hazard. Do not touch the heat motor until it has cooled to 100°F or less. This could take 10 to 30 minutes or longer depending on the ambient temperature.