Submittal Sheet

ManualsBrandsBell & Gossett ManualsCirculator PumpsAQS-3/4, 3/4" Aquastat Control for NBF Circulators

Bell & Gossett

SUBMITTAL

A-128C

JOB:

REPRESENTATIVE:

UNIT TAG:

ORDER NO. DATE:

ENGINEER:

SUBMITTED BY: DATE:

CONTRACTOR:

APPROVED BY:

DATE:

Automatic Timer Kit

Model TC-1

Aquastat

Models: AQS-1/2, AQS-3/4

DESCRIPTION

TC-1 AUTOMATIC TIMER KIT

- To increase the overall efficiency

of a hot water recirculation system, the TC-1 timer control kit can be

installed for use on any B&G NBF/NRF/SSF circulator. The TC-1

timer control is programmable to turn the circulator ON and OFF

automatically at preset times. This permits the user to have the

pump circulate hot water only during those times when high usage

can be expected throughout the day.

AQS-1/2 and AQS-3/4 AQUASTAT

- are designed to

thermostatically turn any B&G NBF/NRF/SSF circulator ON and

OFF. The AQS-1/2 or AQS-3/4 will switch the pump OFF at 120ºF

(48.9ºC) and ON at 100ºF (37.8ºC). The aquastats are available in

separate models that will sense the temperature for either 1/2" o

3/4" copper pipe.

AUTOMATIC TIMER KIT and AQUASTAT COMBINATION

- The

automatic timer and aquastat kits can be used in combination.

When they are used together, the pump will only circulate wate

when the ON time conditions are met and when water temperature

is low enough to cause the aquastat to switch ON.

OPERATIONAL LIMITS

TC-1 AUTOMATIC TIMER KIT:

Power Supply: 115/120 VAC, 60 HZ, 1Ø

Minimum Switch Interval: 15 minutes

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

TIMER (run at programmed intervals)

Maximum Switch Current: 16 amps

AQS-1/2, AQS-3/4 AQUASTATS

Thermostatic Switch Modes: OFF (open) at 120°F (48.9°C) wate

temperature and ON (closed) at 100°F (37.8°C) water temperature.

Thermostatic Element: Bimetal, senses surface temperature o

outside diameter of pipe.

Pipe Size: AQS-1/2 clips onto 1/2" copper pipe or 3/8" steel pipe

(OD of pipe 5/8"). AQS-3/4 clips onto 3/4" copper pipe or 1/2" steel

pipe (OD of pipe 7/8").

Mounting: May be installed to sense temperature at the suction o

discharge pipe of the pump.

CONSTRUCTION MATERIALS

TC-1 AUTOMATIC TIMER KIT:

Timer Body: Noryl Plastic

AQS-1/2, AQS-3/4 AQUASTATS:

Thermostat Covering: Epoxy (Environmentally Sealed)

Pipe Clip: Stainless Steel

Sensing Element: Bimetal

Wire Leads: Insulated 18" (457mm) #18 AWG

APPROX. SHIPPING WEIGHT

TC-1: 11oz. (.31Kg)

AQS-1/2: 5oz. (.14Kg)

AQS-3/4: 5oz. (.14Kg)

SCHEDULE

MODEL

NUMBER

PART

NUMBER

SIZE

INCHES

VOLTAGE RATING

60 HZ 1Ø

TAGGING INFORMATION QUANTITY

TC-1 113210 − 115-120

AQS-1/2 113223 1/2 115-120

AQS-3/4 113224 3/4 115-120

Summary of content (2 pages)

PAGE 1
Bell & Gossett SUBMITTAL A-128C JOB: REPRESENTATIVE: UNIT TAG: ORDER NO. ENGINEER: SUBMITTED BY: CONTRACTOR: DATE: DATE: DATE: APPROVED BY: Automatic Timer Kit Model TC-1 Aquastat Models: AQS-1/2, AQS-3/4 DESCRIPTION TC-1 AUTOMATIC TIMER KIT - To increase the overall efficiency of a hot water recirculation system, the TC-1 timer control kit can be installed for use on any B&G NBF/NRF/SSF circulator.
PAGE 2
AUTOMATIC TIMER KIT AQUASTATS A-128C TIMER KIT DIMENSION IN INCHES (MM) TYPICAL SPECIFICATIONS Furnish and install as shown on the circulator plans and in accordance with the following specifications: 1. AUTOMATIC TIMER KIT: 1. 2. 3. 4. AUTOMATIC TIMER KIT AND AQUASTAT COMBINATION: The timer kit shall be UL approved. The timer kit shall be installed on the connection box of any Bell & Gossett NBF/NRF/SSF system lubricated circulator. The timer kit will be suitable for 115/120V, 60 HZ operation.