Applications; Etv Valve And Actuator Installations-Dual Valve Applications; Replacement Of The Etv Plus M800 Actuator - heat-timer HTC Installation And Operation Manual

ETV VALVE AND ACTUATOR INSTALLATIONS—DUAL VALVE APPLICATIONS
In applications where the ETV valve and actuator kit is applied in a dual application with an ETV Platinum Plus
complete assembly, reference the ETV Platinum Plus installation manual for guidelines on installing the valve and
the wiring of the actuator and 24V transformer.

REPLACEMENT OF THE ETV PLUS M800 ACTUATOR

WARNING
ELECTRICAL SHOCK HAZARD! Disconnect electrical power to the device before servicing or making any
electrical connections. Failure to do so may result in severe personal injury or death.
Follow all local and state electrical codes when installing the unit. All wiring must meet or exceed local,
state, federal codes and requirements.
WARNING
SCALD HAZARD! To avoid any potential of a scald hazard it is recommended to isolate the valve from the
system by closing at a minimum the isolation valve on the HOT supply to the valve.
1 Disconnect power to the ETV module through a service switch or circuit breaker.
2
Remove the actuator cover to access the wire terminals by unsnapping the front of the black cover and lifting
toward the rear of the actuator.
3 Prior to removing the wires from the terminals, it is a best practice to label the wiring to ensure proper wiring to
the HTC Actuator.
• Label Terminal G wire as 24V
• Label Terminal GO wire as 24V
• Label Terminal MX wire as V(-)
• Label Terminal X1 wire as V(+)
4 Remove the wiring from the bottom of the actuator. If needed remove any electrical NM connector or conduit
attached to the actuator housing.
5
Pull down the Manual Tab on the actuator and manually lower the actuator and valve stem to the lowest position.
6 Loosen and remove the (2) locking nuts from the U-bolt. Then remove the U-bolt from the actuator and valve body.
7
On the bronze valve body it may be require to loosen the jam nut from the U channel on the actuator. See
Figure 3A page 9.
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HEAT-TIMER CORP.
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APPLICATIONS

059297-00 REV. H