Weil-McLain CIRCULATOR ZONE CONTROLS WMR-22 User Manual

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WMR Switching Relays

Part Number 550-141-859/0608

Weil-McLain

model

number

Transformer

voltage

Switching

action

Thermostat

current

amps

Single-phase motor

rating

120 VAC 240 VAC

WMR-21 120 V 60 HZ

15 VA

DPST .18 10 A,

56: HP

10 A,

56O HP

WMR-22 120 V 60 HZ

15 VA

DPDT .18 10 A,

56: HP

10 A,

56O HP

Part description Weil-McLain part number

Plug-in relay (24 VAC coil) 510-311-021

Electrical shock hazard — Disconnect power before installing or servicing.

Can cause severe personal injury, death or substantial property damage if

ignored.

To avoid severe personal injury, death or substantial property damage,

never connect the load terminals to a load that takes more current than the

amount listed for the relay in the electrical ratings.

Use copper wire only. Use of any other type of wire could cause a ﬁre hazard

resulting in severe personal injury, death or substantial property damage.

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.

To the installer

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.

Contents

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Weil-McLain CIRCULATOR ZONE CONTROLS WMR-22 Circulator Zone Controls Circulator Zone Control

User Manual - Page 2