Bell-gossett P58749C AQS-3/4 Aquastat User Manual download pdf

SAFETY

INSTRUCTIONS

This safety alert symbol will be used in this manual and on the

pump Safety Instruction decal to draw attention to safety related

instructions. When used, the safety alert symbol means AT-

TENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!

FAILURE TO FOLLOW THE INSTRUCTIONS MAY RESULT IN

A SAFETY HAZARD.

APPLICATION

To increase the overall efficiency of a hot water recirculation

system, the TC-1 timer control kit and the AQS-

/2 and AQS-

aquastat kits can be installed for use on any B&G NRF, NBF or

Series PL circulator. The TC-1 timer control is programmable

to turn the circulator ON and OFF automatically at preset

times. The aquastat kits switch the pump OFF at 120°F

(48.9°C) and ON at 100°F (37.8°C). The timer and aquastat kits

can be used in combination or they can be used separately.

This permits the user to have the pump circulate hot water

only during those times when high usage can be expected

throughout the day. When the aquastat kit and timer are used

together, the pump will only circulate water when the ON time

conditions are met and when the water temperature is low

enough to cause the aquastat to switch ON.

OPERATIONAL LIMITS

For use on B&G models NRF/NBF/Series PL, indoor use only

Power supply: 115-120 VAC, 60Hz, 1Ø

Minimum switch interval: 15 minutes

Run Modes: ON (continuous run), OFF (off at all times), TIMER

(run at programmed intervals)

Maximum switch current: 16 amps

Aquastat switch modes: OFF (open) at 120°F (48.9°C) and ON

(closed) at 100°F (37.8°C)

Aquastat type: Bimetal element, senses surface temperature

of outside diameter of pipe

Pipe Size: AQS-

/2 clips onto

/2" copper pipe or

/8" steel pipe

(OD of pipe

/8")

AQS-

/4 clips onto

/4" copper pipe or

/2" steel pipe

(OD of pipe

/8")

Mounting: May be installed to sense temperature at the suc-

tion or discharge pipe of the pump

NOTE! Aquastat operation is dependent on ambient eviron-

ment. In installations with excessive heat gain or loss in the

ambient may affect the on/off operating temperatures.

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

Bell & Gossett

Automatic Timer Kit Model TC-1

Aquastat Models AQS-

/2, AQS-

Pumps With Plug-In Cords

INSTRUCTION MANUAL

P58749C

1 2 3 4

Summary of Contents

Page 1 - Pumps With Plug-In Cords

SAFETYINSTRUCTIONSThis safety alert symbol will be used in this manual and on thepump Safety Instruction decal to draw attention to safety relatedinst

Page 2 - AQUASTAT INSTALLATION

TIMER INSTALLATION1. Disconnect the electrical supply to the pump.2. Remove the screw that holds the steel conduit box coverto the pump.3. Remove the

Page 3 - TIMER PROGRAMMING

FIGURE 5PROGRAMMINGRINGTIMING ARROWON, OFF, AUTO SWITCHPROGRAMMINGTABSREAL TIMECLOCKAQUASTAT AND TIMER INSTALLATION1. Follow the installation steps in

Page 4 - PUMPS WITH FLEXIBLE CORD

PUMPS WITH FLEXIBLE CORD1. Refer to instruction Manual P58671 or P48419 for installa-tion of the pump.2. If your pump is equipped with a flexible cord

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Bell-gossett P58749C AQS-3/4 Aquastat User Manual

Browse online or download User Manual for Accessories for water Bell-gossett P58749C AQS-3/4 Aquastat. Bell & Gossett P58749C AQS-3/4 Aquastat User Manual

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