Dettson C105-1-D, Инструкции по установке и руководство для владельца

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6 ELECTRICAL CONNECTIONS
WARNING
FIRE HAZARD
Failure to follow this warning could result in
personal injury, death, or property damage.
Do
not connect aluminium wire between
disconnect switch and furnace. Use only copper
wire.
Check all factory and field electrical connections for
tightness.
Supplied field wiring shall conform to the limitations of
63°F (33°C) rise.
6.1 120V WIRING
Furnace must have a 120 V power supply properly
connected and grounded.
NOTE: Proper polarity must be maintained for 120 V
wiring. If polarity is incorrect, control LED status indicator
light will flash rapidly and furnace will NOT operate.
Verify that the voltage, frequency, and phase correspond
to that specified on unit rating plate. Also, check to be
sure that service provided by utility is sufficient to handle
load imposed by this equipment. Refer to rating plate or
Table 27 for equipment electrical specifications.
U.S.A. Installations:
Make all electrical connections in accordance with the
current edition of the National Electrical Code (NEC)
ANSI/NFPA 70 and any local codes or ordinances that
might apply.
Canada Installations:
Make all electrical connections in accordance with the
current edition of the Canadian Electrical Code CSA
C22.1 and any local codes or ordinances that might
apply.
Use a separate, fused branch electrical circuit with a
properly sized fuse or circuit breaker for this furnace.
See Table 27 for fuse specifications. A readily accessible
means of electrical disconnect must be located within
sight of the furnace.
6.2 24V WIRING
Make field 24 V connections at the 24 V terminal strip.
Connect terminal Y/Y2 for proper cooling operation. Use
only AWG No. 18, color-coded, copper thermostat wire.
Use AWG No. 18 color coded copper thermostat wire for
lengths up to 100ft. (30.5m). For wire lengths over 100
ft., use AWG No 16 wire.
6.3 FUSE
The 24 V circuit contains an automotive type, 3-amp
fuse located on the control.
Any direct shorts during
installation, service, or maintenance could cause this
fuse to blow. If fuse replacement is required, use ONLY
a 3 amp.
6.4 THERMOSTATS
A single stage or two stage thermostat may be used
with the furnace.
Consult the thermostat installation
instructions for specific information about configuring the
thermostat.
6.5 ELECTRIC DIAGRAMS
For CXX-1-D models, refer to figure 32.
For CXX-2-D models, refer to figure 33.
For CXX-1-X models, refer to figure 34.
6.6 ALTERNATE POWER SUPPLY
Dettson doesn’t recommend to operate the furnace on a
generator or other alternate power supply. If so it must
produce a smooth sinusoidal waveform for compatibility
with the furnace electronics. The alternate power supply
must generate the same voltage, phase, and frequency
(Hz) as shown on the furnace rating plate.
Power from an alternate power supply that is non-
sinusoidal may damage the furnace electronics or cause
erratic operation.
Contact the alternate power supply manufacturer for
specifications and details.
7 VENTING AND COMBUSTION
AIR PIPING
WARNING
CARBON-MONOXIDE POISONING HAZARD
Failure to follow instructions could result in severe
personal injury or death due to carbon-monoxide
poisoning, if combustion products infiltrate into
the building.
Check that all openings in the outside wall around
the vent (and air intake) pipe(s) are sealed to
prevent infiltration of combustion products into
the building.
Check that furnace vent (and air intake) terminals
are not obstructed in any way, regardeless of
outdoor conditions.
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