Connecting The Wiring; Power Input Wiring - heat-timer TRV Installation And Operation Manual

Connecting the Wiring
This section covers connecting power to the Wireless TRV.
Power Input Wiring
ELECTRICAL SHOCK HAZARD! For your safety, to avoid the risk of electric shock, disconnect electrical power
to the device before servicing or making any electrical connections. DO NOT re‐connect electrical power
until ALL wiring to the MSI Hub is completed. Failure to do so may result in severe personal injury or death.
DO NOT share the Wireless TRV AC power transformer with other devices. This may cause problems with
the wireless operation or permanent damage to the equipment.
1. De‐energize the circuit that will provide power to the transformer by turning off the appropriate circuit breaker.
2. Connect the two black wires from the transformer to the incoming Line and Neutral 120Vac input power supply.
NOTE: The input power wires must be N.E.C. Class 1.
3. Connect the green wire from the transformer to ground. DO NOT use the Neutral line as the earth ground!
4. Connect the wiring from the two terminals marked "8V 10VA" (left and center terminal) on the low‐voltage side of the
transformer to the 8Vac Power Input Connection terminals (1) on the Wireless TRV.
NOTE: Use 16 AWG multi‐conductor, unshielded twisted‐pair cable (Belden p/n 8471, 85102, or equivalent #16/2 cable).
5. Replace the Wireless TRV cover.
6. Re‐energize the circuit that will provide power to the Wireless TRV.
7. Continue with "Attaching an External Antenna" on page 10.
Heat‐Timer Corp.
WARNING
1
Installation Instructions 9
059052-00 Rev. F