York DNQ, DNQ Affinity R410A, DNZ Affinity R410A User Manual

USER’S, MAINTENANCE

The manufacturer recommends that the “User” read all sections of this
manual and keep the manual for future reference.

FIRE OR EXPLOSION HAZARD

Failure to follow safety warnings exactly
could result in serious injury, death, or prop­erty damage.

- Do not store or use gasoline or other flam­mable vapors and liquids in the vicinity of
this or any other appliance.

- WHA T 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.

- Installation and service must be performed
by a qualified installer, service agency or
the gas supplier.

CONTENTS

SAFETY INFORMATION . . . . . . . . . . . . . . . 2

SYSTEM OPERATION. . . . . . . . . . . . . . . . . 2

THERMOSTATS. . . . . . . . . . . . . . . . . . . . 2

SPARK TO PILOT IGNITION

DEVICE. . . . . . . . . . . . . . . . . . . . . . . . . 2

HEATING . . . . . . . . . . . . . . . . . . . . . . . . . 2

COOLING . . . . . . . . . . . . . . . . . . . . . . . . . 3

CIRCULATING FAN . . . . . . . . . . . . . . . . . 3

INPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

FOR YOUR SAFETY, READ BEFORE

OPERATING. . . . . . . . . . . . . . . . . . . . . . . 3

SERVICE INFORMATION

SINGLE PACKAGE

WHAT TO DO IF YOU SMELL GAS . . . . . . 3

AIR CONDITIONER

START-UP INSTRUCTIONS - HEATING

SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . 4

SHUTDOWN INSTRUCTION - TO TURN

OFF GAS TO APPLIANCE . . . . . . . . . . . 4

SECURE OWNER’S APPROVAL . . . . . . . . 4

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . 5

NORMAL MAINTENANCE . . . . . . . . . . . . 5

LUBRICATION . . . . . . . . . . . . . . . . . . . . . 5

GENERAL MAINTENANCE . . . . . . . . . . . 5

FILTER CARE. . . . . . . . . . . . . . . . . . . . . . 5

OUTDOOR COIL . . . . . . . . . . . . . . . . . . . 5

BURNER. . . . . . . . . . . . . . . . . . . . . . . . . . 5

TO CLEAN BURNERS . . . . . . . . . . . . . . . 5

COMBUSTION AIR DISCHARGE . . . . . . 5

CLEANING FLUE PASSAGES AND

REGISTERS . . . . . . . . . . . . . . . . . . . . . . . 5

HEATING ELEMENTS . . . . . . . . . . . . . 5

TROUBLESHOOTING . . . . . . . . . . . . . . . . . 6

BEFORE CALLING A SERVICE-

REPLACEMENT PARTS . . . . . . . . . . . . . . . 6

PERSON . . . . . . . . . . . . . . . . . . . . . . . . 6

SOME EFFICIENCY DO’S AND DONT’S . . 6

GAS/ELECTRIC

and

MANUAL

291892-BUM-B-0313

291892-BUM-B-0313

Congratulations...

On your purchase of one of our Single Package Air Conditioning Units. This energy efficient system has been precision
designed, manufactured of high quality materials and has passed many vigorous inspections and tests to ensure years of satis­factory service.

Please read this manual thoroughly. It will help you understand your system, tell you how to operate it efficiently and how to
obtain the greatest measure of comfort at the lowest operating expense.

We appreciate your interest in our products and your decision to purchase our Single Package Unit. Enjoy your comfort.

SAFETY INFORMATION ­FOR YOUR SAFETY

• Make sure that the furnace
area is clear and free of com­bustible materials, gasoline
and other flammable vapors
and liquids.

• Be sure the furnace is free and
clear of insulating material.
Examine the installation of the
furnace for addition of insula­tion. Some insulations are
combustible.

• For proper operation of this fur­nace, air for combustion and
ventilation is required. Make
sure that these openings are
not obstructed.

• For lighting or shutting down
this furnace, refer to the light­ing instructions provided adja­cent to the burners and also
located in this manual.

• A blocked vent roll-out switch
is provided in the burner com­partment. This switch is a man­ual reset. If the furnace fails to
operate, contact a qualified
service agency.

• Should the gas supply fail to
shut off or if overheating occurs,
shut off the gas valve to the fur­nace before shutting off the
electrical supply. Then call a
qualified service technician.

• Do not use this furnace if any
part has been under water. A

flood-damaged furnace is
extremely dangerous. Attempts
to use the furnace can result in
fire or explosion. A qualified
service agency should be con­tacted to inspect the furnace
and to replace all gas controls,
control system parts, electrical
parts that have be en wet or the
furnace if deemed necessary.

• Determine the integrity of the
installation regarding the flue
gas vent, the return and supply
air duct, the equipment is well
supported and there are no
signs of deterioration. The man­ufacturer recommends that
main burner, ignition de-vice
and controls are inspected by a
qualified furnace technician
before each heating season.

This gas/electric, heating/cooling
unit is designed for outdoor use
and can be installed anywhere
from grade level to the roof. Elec­tric air conditioning in the summer
and gas heating in the winter - all
from a single unit.

SYSTEM OPERATION

THERMOSTATS

Set your thermostat for either heat­ing or cooling then set it for the
desired temperature. DO NOT
MOVE THE THERMOSTAT RAP­IDLY ON AND OFF, OR BACK
AND FORTH FROM HEAT TO
COOL. THIS COULD DAMAGE
YOUR EQUIPMENT.

Always allow at least 5 minutes
between changes. Find the tem-

perature that is most comfortable to
you, and then LEAVE YOUR
THERMOSTAT ALONE. (Excep­tion is for night or vacation “set
back” to conserve energy)

Manually moving the thermostat up
or down will not speed up tempera­ture changes in your rooms. This
only causes the thermostat switch
to function at your command rather
than responding to room tempera­ture.

Heat generated by devices other
than the furnace may interfere with
thermostat performance. There­fore, lamps, radios, television sets,
etc. should not be placed near the
thermostat.

SPARK TO PILOT IGNITION
DEVICE

This unit is equipped with a spark
to pilot ignition device. The control
is designed to automatically light
the burner each time the thermo­stat “calls” for heat.

Do not attempt to manu­ally light the burners. Per­sonal injury could result.

HEATING

When the thermostat calls for
HEAT, the thermostat terminal “W”,
“Wi” or “W2” is energized, the con­trol board checks for a open pres­sure switch “PS” and closed limit
switches, then energizes the com­bustion air blower.

2 Unitary Products Group

291892-BUM-B-0313

!

WARNING

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WARNING

V E N T O U T L E T S C R E E N

F L U E V E N T O U T L E T

A I R H O O D

!

WARNING

!

WARNING

After combustion airflow is estab­lished, the air proving pressure
switch “PS” closes, the ignitor is
energized and the pilot valve opens
igniting the pilot flame.

The flame rod senses a flame and
de-energizes the ignitor opening
the main gas valve and the main
burners light.

30 seconds after the main burners
light the circulating fan is energized
at the heating speed.

When the thermostat is satisfied,
terminal W is de-energized, de­energizing the ignition system clos­ing the gas valve.

After a 30 second postpurge timing
period, the combustion air blower is
de-energized and the heat fan off
timing begins.

When this field selected heat fan
off timing is completed the circulat­ing fan is de-energized.

Flue hood surface and
immediate area is designed
to operate at high tempera­tures during the heating
cycle. Special attention must
be given to keep all human
contact and debris away
from this area.

If a call for “COOL” occurs, the cir­culating fan continues to run at the
cool speed.

If a call for “HEAT” occurs, the cir­culating fan switches to heat speed
after a 30 second delay.

When the thermostat ends the call
for “FAN”, the thermostat is de­energized, de-energizing the circu­lating fan.

INPUT

The correct heat capacity of the fur­nace is regulated by the burner ori­fices and the gas pressure. The
proper orifices are furnished but
the gas pressure regulator must be
adjusted by the installing service­man or gas company. This is a
“one-time” adjustment.

FOR YOUR SAFETY, READ
BEFORE OPERATING

If the limit switch “LS”, auxiliary
limit switch “ALS” or the rollout
switch “RS” open, the ignition sys­tem is de-energized and the gas
valve closes. The combustion
blower and the circulating fan are
energized.

The combustion blower remains
energized for the 30 second post­purge timing period if the limit
switch “LS”, auxiliary limit switch
“ALS” or the rollout switch “RS”
contacts reset (the rollout “RS” and
auxiliary limit switch “ALS” must be
manually reset). The circulating fan
remains energized for the selected
heat delay off timing.

Normal operation of the system
resumes.

Should overheating occur,
shut off the manual gas
valve external to the appli­ance before shutting off the
electrical supply.

Incorrect installation of
the flue vent hood could
cause personal injury or
property damage.

COOLING

When the thermostat calls for
“COOL”, the thermostat signals the
compressor and outdoor fan to run.

The circulating fan is immediately
energized at cooling speed.

When the thermostat is satisfied,
the compressor and outdoor fan is
de-energized.

After a cool fan off delay timing of
30 seconds the circulating fan is
de-energized.

CIRCULATING FAN

When the thermostat calls for
“FAN”, the thermostat terminal sig­nals the circulating fan to run at the
cool speed.

If you do not follow these
instructions exactly, a fire
or explosion may result,
causing property dam­age, personal injury or
loss of life.

A. BEFORE OPERATING, smell all

around the appliance area for gas.
Be sure to smell around the base
of the unit because some gas is
heavier than air and will settle in
the area.

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.

Unitary Products Group 3