Specifications

6
Physical Installation and Wiring
L CAUTION
− Read the enclosed instructions carefully before installing your new Z-Thermostat. Pay close
attention to all warnings and notes and carefully follow the installation steps in the order they
are presented to save time and minimize the risk of damaging the thermostat or the system it
controls.
− Turn off ZTS-100 and the electronic devices (e.g. heater, cooler) which will be connected and
the electric source before installation and maintenance. It is highly recommended that the
installation procedure is processed by trained personnel.
Battery safety!
− Use new batteries of the recommended type and size only.
− Never mix used and new batteries together.
− To avoid chemical leaks, remove batteries from the ZTS-100 if you do not intend to use the
unit for an extended period of time.
− Dispose of used batteries properly; do not burn or bury them.
Installation Location:
The Thermostat is restricted to be used in indoor only. It should be mounted on an inner wall about
1.5m above the floor at a position where it is readily affected by changes of the general room
temperature with freely circulating air. Avoid mounting above or near hot surfaces or equipment (e.g.
TV, heater, refrigerator). Avoid mounting where it will be exposed to direct sunshine, drafts, or in a
laundry room or other enclosed space. Do not expose this unit to dripping or splashing.
Wiring:
z Be sure the operation mode is OFF and Fan selection is Fan Auto
z Wire the proper cables at the terminal block according to the circuit diagram
z Afterward, push all cables back into the wall
z Do not use metal conduit or of cable provided with a metal sheath
z Recommends adding fuse or protective device in the line circuit
Terminals Symbol
Cool changeover (heat pump) O
Heat changeover (heat pump) B
2nd Stage heater W2
1st Stage heater W1
Fan G
Compressor Y
24Vac Power for Cooling RC
24Vac Power for Heating RH
24Vac Common C