Specifications

DIGICOM / DIGIHP THERMOSTATS

DESCRIPTION

The Zonex Systems DIGICOM (2H, 2C) and DIGIHP (3H, 2C) are

microprocessor based, auto changeover, stand-alone thermostats used to

control stand alone units with no dampers in the system. The DIGICOM is

the Gas Electric version and has two-stage heat / cool outputs with

selectable fan operation. The DIGIHP Heat Pump thermostats have two-

stage cool and three-stage heat outputs with selectable fan. The DIGICOM

and DIGIHP thermostats have a large, easy-to-read LCD display with a

distinctive grey backlight. The display backlight is continuously illuminated

in the Occupied mode and goes off in the Unoccupied mode.

The DIGICOM and DIGIHP are very easy to configure through the system program or to make

manual adjustments using the buttons located on the front cover.

These thermostats feature an onboard thermistor for precise temperature measurement. In the

event of power loss, the Heat and Cool set points are stored in a non-volatile memory, without the

need for battery backup.

The space ambient temperature is continually displayed with large, easy-to-read numbers. The

DIGICOM temperature display range is 45° - 95°F (7°- 35°C) and the DIGIHP temperature display

range is 55°- 95°F (12°- 35°C). Fan Mode, Heat or Cool set points and operation modes are all

indicated on the display.

Programmed set points can be manually adjusted at the thermostat or electronically locked through

the system program to provide limited manual set point adjustment. Two-hour override is provided

for after-hours temporary operation with a touch of a button.

INSTALLATION

Thermostat and terminal base

1. The thermostat is to be installed on the interior wall, away from drafts, supply air currents and

direct sunlight or any heat generating source.

2. To remove the thermostat cover, grasp the cover at the top and pull straight off; do not pivot the

cover from the base.

3. Install the thermostat terminal base to the wall using the provided anchors and screws. The

thermostat can also be mounted on a 2x4 electrical box using two #6-32” screws.

Wiring

The Zonex Systems DIGICOM and DIGIHP thermostats have been specifically designed to make

wall mounting and wire connections very easy. The thermostat terminal base has two separate

terminal blocks: the left side terminal block is for the 24vac control circuits, and the right side

terminal block is for the RX TX communication circuits. There are two sets of RX TX terminals on

the base to make daisy chain wiring from device to device straightforward and simple.