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Part number 550-141-858/0107
2
WMZV Zone Valve Controllers
The following defined terms are used throughout this manual to bring attention to the presence
of hazards of various risk levels or to important information concerning the life of the product.
Contents
Indicates presence of hazards that will cause severe personal injury, death
or substantial property damage.
Indicates presence of hazards that can cause severe personal injury, death
or substantial property damage.
Indicates presence of hazards that will or can cause minor personal injury
or property damage.
Indicates special instructions on installation, operation or maintenance that
are important but not related to personal injury or property damage.
Electrical shock hazard — Disconnect power before installing or servicing.
Can cause severe personal injury, death or substantial property damage if
ignored.
All wiring must be installed in accordance with:
U.S.A. — National Electrical Code and any other national, state or local code
requirements. Wiring must be N.E.C. Class 1.
Canada — C.S.A. C22.1 Canadian Electrical Code Part 1 and any other
national, provincial or local code requirements. Wiring must be C.S.A.
C22.1 C.E.C. Part 1.
Replacement parts
Hazard definitions ............................................................2
Replacement parts ............................................................2
WMZV features .................................................................3
Wiring ...............................................................................4
Hazard definitions
Please note:
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
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