5
WIRING continued
WARNING
Electrical shock hazard. To prevent electrical shock, death or equipment damage, disconnect power supply before
installing or servicing this control.
ZONE VALVE WIRING
IMPORTANT: Use a separate transformer to power zone valves. Connecting zone valves to Z-TV may overload the
HydroStat and cause a lock-out condition (see Troubleshooting on page 12 for more information). The total load, including
the burner circuit, vent damper, and Z-TV connections must not exceed 1.2 amps (30 VA). Connect zone valve end-switch
to T/TV as shown below.
STEP 6 For Systems with Indirect Water Heaters
When installing with an indirect water heater, the signal from the indirect must be separated from the heating zone signals and
wired to I1 and I2 as shown above. Calls to I1 and I2 will bypass the Thermal Targeting or Outdoor Reset feature and allow the
boiler to fire to the high limit setting to heat the indirect tank.
NOTE: If you choose not to separate the indirect signal from the heating zones, the Economy Feature should be turned OFF to
insure that the boiler supplies adequate temperature to heat the indirect tank (see page 6).
HydroStat 3200-Plus Instructions_ HydroStat Instructions.8pg 12/1/17 10:43 AM Page 5
To Next Page
Loading...
Need help?
Power
Operating Environment
