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Each zone requires a zone thermostat. This thermostat can be digital,
mechanical, or programmable. All three types are available. Zonex Sys-
tems thermostats have been specifically designed to work with Zonex
Systems Zone Control systems. Attempting to use another manufacturer’s
thermostat may create compatibility problems and cause nuisance calls.
For trouble free installation, use only Zonex Systems supplied thermostats.
Digital Thermostats
Zonex Systems makes two Digital Thermostats for the System 1000/2000:
101DIGI
– a single stage thermostat that can be used whenever auxil-
iary zoned heating is not required.
101DIGITS
– a single stage cool, two stage heat thermostat. It should
be used when auxiliary zoned heating is needed.
101DIGI:
This is a digital, dual setpoint, single stage zone thermostat,
accurate to within one degree. The 101DIGI is auto changeover, is non
power robbing, and is designed with a non-volatile memory to retain all
programmed setpoints. The stat is operated by two push buttons to review
and modify heat and cool setpoints. To avoid unauthorized setpoint mod-
ifications, the 101DIGI has locking setpoint capability. There is also a zone
On/Off switch. Under the cover there is a green and red light. When the
green light is on the stat is calling for cooling. When the red light is on the
stat is calling for heat. Following any call, the stat is designed with a two-
minute minimum run time to prevent short cycling. It can be used with any
of the System 1000/2000 Controllers. This thermostat can be ordered with
a remote sensor (101DIGIRS). The 101DIGI Dimensions are: 2-7/8”W
x 4-1/2”H x 1”D, the color is off white. Requires four thermostat wires for
installation.
101DIGITS
This is an auto
changeover, electronic zone thermo-
stat with auxiliary heat output. This
dual setpoint thermostat has a large
digital readout which displays cur-
rent room temperature. Under the
cover there are two red lights and
one green light. When the green
light is on, the thermostat is calling
for cooling. When the red light labeled “D-1” is on, the the stat is call-
ing for first stage heat. When the the red light labeled “HT2” is on, the
stat is calling for second stage heat. This zone thermostat is designed for
zones that require supplemental heat. This thermostat can be ordered
with a remote sensor by adding RS to its part number. 101DIGITS dimen-
sions are 2 7/8” W x 4 1/2” H x 1” D. Installation requires five
wires.
101DIGI Thermostat Operation
Each digital thermostat has an “ON” / “OFF” switch located at the bottom.
Typically, this thermostat should always be in the “ON” position. When
the room is unoccupied, use this switch to take the zone out of your sys-
tem by sliding it to the left to turn it off. When the room is occupied slide
the switch to the right to turn it on. Assign the Heating and Cooling Set-
points desired by using the following instructions:
1. Determine the existing Set-
points:
A. To determine the existing Heat
Setpoint, press and hold the
top button marked until
the letter “H” appears and
then release. The current heat
setpoint will be displayed
following the letter “H” (If
the button is held down too
long the Heat Setpoint will
begin to increase). Approxi-
mately two seconds after the
button is released the current
room temperature will be
redisplayed.
B. To determine the existing Cool
Setpoint press and hold the low-
er button marked until the
letter “C” appears and then
release. The current Cool
Setpoint will be displayed
following the letter “C” (If the
button is held down too long
the Cool Setpoint will begin to
decrease). Approximately
two seconds after the button is
released the current room
temperature will be redisplayed.
2. Modifying the Setpoints:
A. To change the Heat Setpoint,
press and hold the top button
until the Heat Setpoint is dis-
played. Continue to press this
button (the up button ) to
increase the Heat Setpoint or
press and hold the bottom
button to reduce the Heat
Setpoint to your desired
comfort level in this room.
B. To change the Cool Setpoint,
press and hold the lower button until the Cool Setpoint is
displayed. Continue to hold this button to lower the Cooling
Setpoint or press the top button to raise the Cool Setpoint
to your desired comfort level in this room.
Set up all of the zone thermostats in this way to provide room
by room comfort control.
101DIGI
Requires
4 Wires
101 DIGITS
Requires
5 Wires
ZONE THERMOSTATS
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