HearthStone TUCSON Owner's Manual

7 Electrical Connections
ELECTRICAL CONNECTIONS
Thermostat
The Tucson requires a wall mounted thermostat for
operation. The thermostat controls the unit by
“calling for heat” and turning on the unit when the
room is cold, and turning off the unit once the room
is warmed sufficiently. The Tucson thermostat is
controlled by a 750 millivolt DC two-wire circuit.
Both the thermostat and 40' (6m) of thermostat
wire are included as standard equipment.
Thermostat Placement
The thermostat should be placed in the same room
or living space as the Tucson, typically 5' (1.5 m)
off the floor and away from influences that would
cause the temperature in the vicinity of the
thermostat to be unrepresentative of the room
temperature in general. Such influences might
include strong lighting, a heater vent from the
central heating system, a nearby drafty window,
etc.
Placement of the thermostat on an inside wall rather
than an outside wall is preferable. Do not place the
thermostat directly behind or too close to the
Tucson, otherwise heat from the unit will
immediately satisfy the thermostat and turn the unit
off.
NOTE: OPEN VALVE DOOR UNDER
ASH LIP FOR ELECTRICAL AND GAS
CONNECTIONS.
Thermostat Wiring
The thermostat should be connected to the
Tucson using no more than 40' (6 m) of the
provided insulated thermostat wire. The
thermostat wire from the Tucson to the
thermostat can be surface mounted or routed
under the floor, through walls, etc.
If 40' (6 m) of wire is not enough, 16 gauge wire
may be used in its place but must not exceed 40'
(12 m) in length. In either case, be sure to leave
a small coil of wire behind the Tucson so that the
unit can be moved out of position for servicing
and cleaning.
Connect the two thermostat wires to the gas
control valve on the top and bottom screws
marked TH and TP, TH. When making these
connections, position the thermostat wire so that
it extends towards the wall behind the Tucson,
then towards the thermostat.
At the thermostat, the wires should be connected
to the two connection screws on the back of the
thermostat per the instructions received with the
thermostat. Take care not to over-tighten the
connection screws and not to damage the internal
parts of the thermostat.
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify
proper operation after servicing.

HearthStone TUCSON Specifications

General

Brand	HearthStone
Model	TUCSON
Category	Gas Heater
Language	English