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Zone Valve Controllers
Instruction manual
WMZV-4 Four-zone controller
WMZV-6 Six-zone controller
This manual must only be used by a
technician.
substantial property damage.
qualified heating installer/service
Failure to comply could result in severe personal injury, death or
Part No. 550-141-858/0107
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Related Manuals for Weil-McLain WMZV-4
Summary of Contents for Weil-McLain WMZV-4
- Page 1 Zone Valve Controllers Instruction manual WMZV-4 Four-zone controller WMZV-6 Six-zone controller This manual must only be used by a qualified heating installer/service Failure to comply could result in severe personal injury, death or technician. substantial property damage. Part No. 550-141-858/0107...
- Page 2 Wiring must be C.S.A. C22.1 C.E.C. Part 1. Replacement parts Part description Weil-McLain part number Plug-in relay (24 VAC coil) 510-311-021 Field-mounted 40 VA transformer (used on WMZV-4 only) 511-842-370 Field-mounted 75 VA transformer (used on WMZV-6 only) 511-842-364 Part number 550-141-858/0107...
- Page 3 2. Clearly marked terminals with Built-in priority zone means no other controllers are needed to provide quick-connect screwless clamps. priority heating for indirect water heaters including Weil-McLain Plus 3. Plug-in replacement priority Indirect-Fired Water Heaters. relay. 4. LED diagnostic lights for easy troubleshooting.
- Page 4 Diagram 1 Typical WMZV-4 Sequence of operation: • When a zone thermostat closes, the WMZV-4 activates its zone valve. The green light for the zone comes on. • When the zone valve end switch closes, it causes the red light to come on, indicating the zone valve is fully open.