StyleCrest Installation Manual

14
Low Voltage Wiring
• The furnace is designed to be controlled by a 24 VAC
thermostat. The thermostat’s wiring must comply with
the current provisions of the NEC (ANSI/NFPA 70) and
with applicable local codes having jurisdiction.
• The thermostat must be installed according to the
instructions supplied by the thermostat manufacturer.
Low voltage connections (24 VAC) from the thermostat
are wired to the terminal strip on the integrated control
in the furnace.
• The thermostat should be mounted about 5 feet above
the floor on an inside wall. DO NOT install the thermostat
on an outside wall or any other location where its
operation may be adversely affected by radiant heat from
fireplaces, sunlight, or lighting fixtures, and convective
heat from warm air registers or electrical appliances.
Refer to the thermostat manufacturer’s instruction sheet
for detailed mounting information.
• The nominal anticipator setting is 0.4. Refer to the
thermostat literature for additional information.
• Five-conductor thermostat wire is recommended for 24
volt low-voltage circuit (2-wire is required for furnace
only; 5-wire for heating and optional cooling systems).
Refer to Table 6 for thermostat wire information.
Connecting Thermostat Wires
1. Insert 24 volt wires through the plastic grommet just
above the control panel.
2. Connect the thermostat wires to the furnace low voltage
pigtails (dependent on the installation application). See
Figure 25 (page 13). NOTE: If AC is installed with
the furnace, a Y connection is required to be made at
the furnace. See Figure 31 (page 25).
3. Connect low-voltage circuit to the wall thermostat.
4. A hole may be made in the furnace cabinet to ease
thermostat wiring. Make sure that the wiring is protected
from the sharp edge of the added hole.
Verifying Anticipator Setting
After the furnace is installed, check the thermostat
anticipator against the nominal setting of 0.4.
1. Connect the milliamp meter in series with one of the
gas valve’s low voltage terminals.
2. Energize the gas valve.
3. Read the value of the milliamps.
4. Adjust the heat anticipator of the thermostat to the
value on the milliamp meter. If the heat anticipator is
set too high, the furnace may delay turning on. If set too
low, the furnace may cycle frequently and not provide
comfort to the homeowner.
Grounding
WARNING:
To minimize personal injury, the furnace cabinet
must have an uninterrupted or unbroken electrical
ground. The controls used in this furnace require
an earth ground to operate properly. Acceptable
methods include electrical wire or conduit
approved for ground service. Do not use gas
piping as an electrical ground!
FUEL SUPPLY & PIPING
WARNING:
FIRE OR EXPLOSION HAZARD
• Failure to follow safety warnings exactly could
result in serious injury or property damage.
• Installation and service must be performed
by a qualified installer, service agency or the
gas supplier.
• Do not store or use gasoline or other
flammable vapors and liquids in the vicinity
of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not
use any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call
the fire department.
AVERTISSEMENT :
RISQUE D’INCENDIE OU D’EXPLOSION
• Le non-respect des avertissements de sécurité pourrait
entraîner des blessures graves ou des dommages
matériels importants.
• L’installation et l’entretien doivent être effectués par
un installateur qualifié, un organisme de service ou le
fournisseur de gaz.
• N’entreposez pas ni n’utilisez de l’essence ni d’autres
vapeurs ou liquides inflammables dans le voisinage de
cet appareil, ni de tout autre appareil.
QUE FAIRE S’IL Y A UNE ODEUR DE GAZ
• N’essayez d’allumer aucun appareil.
• Ne touchez à aucun interrupteur électrique; n’utilisez
aucun téléphone dans le bâtiment.
• Évacuez l’immeuble immédiatement.
• Appelez immédiatement votre fournisseur de gaz à l’aide
du téléphone d’un voisin. Respectez les instructions
du fournisseur de gaz.
• Si personne ne répond, appelez le service des incendies.
WARNING:
All piping must conform with local building codes,
or in the absence of local codes, with the most
recent edition of the National Fuel Gas Code ANSI
Z223.1 or (CAN/CSA B149.1). Failure to follow all
safety warnings could result in serious injury,
death or property damage.