©Johnstone Supply eCatalog 216

HYDRONICS Controls

Hydro Air Fan Control • Interfaces between the thermostat and air handler • Compatible with 1- or 2-speed air handlers • Built-in 24V transformer for heating and cooling thermostats • Includes three built-in fan time delay options, two selectable pump exercise modes, a secondary

aquastat connection for freeze protection and the ability to switch a pump and/or boiler WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Order #

Mfg. #

Volts

L41-634

HAFC201-4

120

Mixing Blocks • Can be setup as outdoor reset controls, setpoint controls or delta T limiting controls • No special piping – four pipe connections complete the installation • Uses Taco pump repair cartridges • Bronze construction can be used on “open” or “closed” systems (barrier or non-barrier PEX tubing) • 6' power cord included; 120 VAC • Operates in systems up to 125 PSI with temperatures up to 185°F • 3250 RPM • 3/4" NPT connections

• L87-238 combines a variable-speed injection mixing control, injection circulator, system circulator and air elimination into a single unit, with integral check valve and 120,000 BtuH capacity • L87-239 combines a variable-speed injection mixing control, heat source circulator, system circulator and heat exchanger into a single unit, with 60,000 BtuH capacity • L87-239 for use in system combining any style heat source with any style heat delivery method or system condition WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

A

B

Fig. Order #

Mfg. # Description

Fig. Order #

Mfg. # Description

L87-238

L87-239

A

RMB-1 Radiant Mixing Block

B

XPB-1 X-Pump Block

Zone Valve and Pump Controllers • Allows up to 10 amps, 1/3 HP per zone • Selectable priority for domestic hot water except L39-701 • 30-minute built-in timer prevents house freeze-up except L39-701

• Automatic resettable fuse prevents controller overload WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Order #

Mfg. # Model # Description

Amps

Width

Height

Depth

Zoning with Pump L39-701

109424 ZT-1X 1 Zone Relay 109426 ZT-3 3 Zone w/Priority 109427 ZT-4 4 Zone w/Priority

15 20 30

4-1/4" 9-1/4" 9-1/4"

5-3/8" 7-1/4" 7-1/4"

2-5/8" 2-3/4" 2-3/4"

L39-703 L39-704

AquaSmart Model 7600 Boiler Controls • Beckett HeatManager™ dynamic temperature reset • Cycle history diagnostic information

• Energy saving through circulator hold-on function • Priority override for domestic hot water • Self-checking sensor WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

• Reduce inventory through universal design • Backlit LCD screen with programming touch pad • Freeze resistance

Order #

Mfg. #

Description

Order #

Mfg. #

Description

L45-303 L45-304

L45-305 L45-306

7610A0001U 120VAC Burner, AquaSmart Boiler Temp Control 7610B0001U 24 VAC Burner, AquaSmart Boiler Temp Control

7600RMU 48" AquaSmart Remote Mount Kit 7600TSU Replacement Temperature Sensor

526

©2023 Johnstone Supply, LLC