Table of Contents
Advertisement
11. The inducer motor will continue to run for the post
purge period of 25 seconds.
12. The main blower will continue to run for the BLOWER
OFF delay of 90 - 135 seconds.
13. After the BLOWER OFF timer has been satisfied, the
integrated control de-energizes the main circulating
blower circuit.
Cooling Mode
1. On a call for cooling, the thermostat closes applying 24
VAC to the G & Y terminals on the low voltage terminal
strip.
2. The G terminal applies 24VAC to the G terminal of the
integrated control, energizing the main circulating blower
circuit at the cooling speed.
3. The Y terminal applies 24VAC to the contactor.
4. When the thermostat is satisfied, the contactor and
integrated control de-energize. Compressor and outdoor
fan will stop running.
5. The circulating blower motor de-energizes after a 40
second delay.
Fan Mode
1. On a call for fan only operation, the thermostat applies
24 VAC to the G terminal connected to the G terminal
of the integrated control.
2a. ECM Motors: The circulating blower is energized
immediately at the heating speed if 2-SPD is selected
or fan only speed if 3-SPD is selected on the control.
2b. PSC Motors: The circulating blower is energized
immediately on the heat speed.
NOTE: If a call for heat occurs, the circulating blower de-
energizes prior to normal heating cycle.
REPLACEMENT PARTS
Replacement parts are available through all Nordyne
distributors. Please have the complete model and serial
number of the unit when ordering replacement parts.
Electrical:
• Capacitors
• Compressors
• Contactors
• Gas Valves
• Ignition Controls
• Ignitors/Flame Sensors
• Blower Motor
• Fan Motor
• Inducer Blower Motor
Components:
• Blower Assembly
• Burner Manifold
• Burners/Orifices
• Cabinet Panels
• Expansion Valves
• Pressure Switches
• Relays
• Temperature Limit Switches
• Thermostats
• Time Delay Relays
• Transformers
Motors:
• Fan Grille
• Filter/Driers
• Gaskets
• Heat Exchanger
EQUIPMENT MAINTENANCE
WARNING:
ELECTRICAL SHOCK,FIRE OR EXPLOSION
HAZARD
Failure to follow safety warnings exactly could
result in serious injury or property damage.
Improper servicing could result in dangerous
operation, serious injury, death or property
damage.
• Before servicing, disconnect all electrical
power to furnace.
• When servicing controls,label all wires prior
to disconnecting.Reconnect wires correctly.
• Verify proper operation after servicing.
AVERTISSEMENT:
RISQUEDECHOCÉLECTRIQUE,D'INCENDIE
OU D'EXPLOSION
Le non-respect des avertissements de sécurité
pourrait entraîner un fonctionnement dangereux
de l'appareil, des blessures graves, la mort ou
des dommages matériels.
Un entretein incorrect pourrait entraîner un
fonctionnement dangereux de l'appareil, des
blessures graves, la mort ou des dommages
matériels
• Couper toute alimentation électrique au
générateur d'air chaud avant de prodéder
aux travaux d'entretein.
• Au moment de l'entretien des commandes,
étiquetez tous les fils avant de les débrancher.
S'assurer de les raccorder correctement.
• S'assurer que l'appareil fonctionne
adéquatement aprés l'entretien.
CAUTION:
Use care when removing parts from this unit.
Personal injury can result from sharp metal
edges present in all equipment of sheet metal
construction.
Proper maintenance is important to achieve optimum
performance from the system. The ability to properly
perform maintenance on this equipment requires certain
mechanical skills and tools. If you do not possess these
skills, contact your dealer for maintenance. Consult your
local dealer about the availability of maintenance contracts.
Routine maintenance should include the following:
19
Advertisement
Table of Contents
