Table of Contents
Advertisement
HearthStone Quality Home Heating Products
Electrical Connections
Thermostat
The Sterling may use a wall-mounted thermostat for operation. The thermostat controls the unit by "calling for
heat" and turning the unit on when the room is cold, and turning the unit off once the room has warmed sufficiently to
satisfy the thermostat.
The Sterling thermostat is controlled by a 750 milli-volt DC two-wire circuit. Both the thermostat and 40 feet of
thermostat wire are included with the Sterling as standard equipment.
Thermostat Placement
The thermostat should be placed in the same room or living space as the Sterling, typically 5' (1.5-m) off the floor
and away from areas of draft, direct sunlight or other influences which 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 generally preferable. Do not place the
thermostat directly behind or too near the Sterling, otherwise every time the thermostat calls for heat and the unit turns
on, heat from the unit will immediately satisfy the thermostat and turn the unit off.
Thermostat Wiring
The thermostat should be connected to the Sterling using 18-gauge insulated thermostat wire supplie d. The
thermostat wire from the Sterling to the thermostat can be surface mounted or routed under the floor, through walls,
etc.
Connect one of the two conductor thermostat wires to the terminal on the gas valve marked "TH".Connect the other
to the yellow wire from the on/off T-stat switch assembly. When making these connections, position the thermostat
wire so that it extends towards the wall behind the Sterling, then towards the thermostat. Check to ensure that the
connections are secure and permanent.
At the thermostat, the thermostat wire should be connected to the two connection screws on the thermostat base
plate 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. The thermostat should be mounted level for proper operation and accurate
temperature control.
Venting /Chimney Requirements
Normally Aspirated Chimneys
The Sterling is a high efficiency gas heater. With operating efficiencie s as high as 80%, most heat output is
retained within the living space, with minimal heat leaving the room via the chimney. However, some heat is required
in all chimneys in order to establish and maintain a draft. Since most of the heat is retained in the living space with
minimal heat entering the chimney, it is imperative that the chimney/venting system be properly sized and installed in
order to establish and maintain the draft required for the unit to function.
The Sterling must be properly connected to a 4" (102-mm) diameter type B -1 vent which is constructed and
installed in accordance with NFPA54 and NFPA211. Single wall vent pipe may be used within the same room as the
Remove facade under ash lip for electrical and gas connections.
N
OTE
8
MODEL Sterling "G" B-Vent
Hide quick links:
Advertisement
Table of Contents
