Brochure

25
RELAYS ZONETROL II AZ-1A
™
Snap-On Pump Relay
Description
The ZONETROL II AZ-1A snap on relay box is an easy to install single zone
pump controller that mounts directly on any Bell & Gossett wet rotor circulator
NRF/NBF or Series PL booster. The AZ-1A turns the pump and boiler ON as
thermostat calls for heat. Using the wire nuts provided with the package, the
AZ-1A is quickly assembled onto any NRF/NBF or 1/12 to 1/6 HP Series PL.
The clearly marked TT terminals for the thermostat and the XX isolated end
switch terminals make the rest of the hook-up a snap. The AZ-1A can be
daisy-chained together to form a maximum of three zones.
The Bell & Gossett AZ-1A is ideal for any single to three zone pump
application. Or can be used when adding a zone to an existing system. There’s
no more need to have a pump controller hanging on the wall, simply install
the AZ-1A to our NRF/NBF or Series PL circulators and you are finished.
Features
• Snap-on design allows the AZ-1A to be quickly attached
to any B&G wet rotor circulator, reducing your inventory
investment (no need to carry “special” circulators with
factory mounted controllers)
• Clearly marked terminals make for sure, fast wiring of
the system
• Compact design fits in tight locations and presents a
clean professional appearence
• 100% factory tested assures reliable operation
• 5 year warranty — the best in the industry
• Daisy-Chain the AZ-1A relays to form up to three zones
• Can be used on any B&G model NRF, NBF or 1/12 to 1/6
HP Series PL pumps
Dimensions (L x W x H): 2-7/8” X 3-1/4” X 2-5/8”
Approximate Shipping Weight: 0.75 lbs
Specifications
/
/
/
ThermostatThermostat Thermostat
115V
AZ—1A
115V
AZ—1A
115V
AZ—1A
The AZ-1A can be
daisy-chained to
form up to three
zones with
simplified wiring.
Low voltage
wiring makes
multiple relay
connections
a snap.