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120 Volt Hydronic Control with 4 Zones expandable, Priority Control and -20 F to +100 F temperature

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120 Vac Hydronic Control with 4 Zones expandable, Priority Control and -20 F to +100 F temperature range


Hydronic Valve Zone Panel with Priority Control provides burner control and valve control for up to three (R8889A,C) or four (R8889B,D) zones in hot water systems.


For use in residential and light commercial applications.

Zone One can be selected to give priority to indirect hot water tank.

Up to four panels may be wired together to provide 12 to 16 zones while maintaining priority zoning.

The R8889 may be used in combination with the R8888 circulator panels.

Operates 24 Vac zone valves, including Honeywell VC series and Taco valves.

24V internal transformer provides power for low voltage control circuit and valves.

Diagnostic LEDs for troubleshooting.

Socket-mounted and field-replaceable burner relays.

Clearly marked terminal designations for easy wiring.

Compatible with Honeywell and competitive electronic, electromechanical thermostats and Honeywell Aquastat Controls.

Mount horizontally only.

Product Specifications

Application Provides switching for up to 4 zones. Zone one can be field-configured as priority over the other zones.

Transformer Includes one 24 Volt Transformer to provide power to low voltage circuit.

Number of Zones 4 Zone, Expandable

Electrical Ratings Load Ratings: Valve: 24 Vac, 0.9 resistive. Total: 87 VA per panel (R8889A and R8889B). Anticipator Setting: 0.12 A.
Operating Temperature Range (F) -20 F to +100 F

Operating Temperature Range (C) -29 C to +38 C

Operating Humidity Range (% RH) 0 to 90% RH, non-condensing

Knockouts 1/2" conduit knockouts in side of case.

Electrical Connections Captive wire-clamp screw terminals.

Color Gray enamel

LEDs Yes

Voltage 120 Vac

Approvals, Underwriters Laboratories Inc UL c/us Listed: File no. E4436.

Replaces Part Numbers: R8889D, CARR8889D1000

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