York DYZ 024 User manual

CONTENTS
INSTALLATION SAFETY INFORMATION. . . . . . . . .3
GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
MAINTENANCE AND RENEWAL PARTS. . . . . . . . .3
APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . .4
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . .15
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . .19
See following pages for a complete Table of Contents.
NOTES, CAUTIONS AND WARNINGS
The installer should pay particular attention to the words:
NOTE, CAUTION, and WARNING. Notes are intended to
clarify or make the installation easier. Cautions are given to
prevent equipment damage. Warnings are given to alert
installer that personal injury and/or equipment damage may
result if installation procedure is not handled properly.
INSTALLATION
MANUAL
CAUTION: READ ALL SAFETY GUIDES BEFORE YOU
BEGIN TO INSTALL YOUR UNIT.
SAVE THIS MANUAL
SINGLE PACKAGE GAS/ELECTRIC
AIR-COOLED AIR CONDITIONERS
2, 2-1/2, 3, 3-1/2, 4 and 5 NOMINAL TON
WITH R-410A REFRIGERANT
MODELS: DYZ 024, 030, 036, 042, 048, and 060
66435-BIM-B-1004
ISO 9001
Certified Quality
Management System

66435-BIM-B-1004
2Unitary Products Group
TABLE OF CONTENTS
INSTALLATION SAFETY INFORMATION . . . . . . . . . . . . . 3
GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
MAINTENANCE AND RENEWAL PARTS . . . . . . . . . . . . .3
APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
RIGGING OR HANDLING. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DUCT WORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
ROOF CURB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CONDENSATE DRAIN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SERVICE ACCESS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
POWER AND CONTROL WIRING. . . . . . . . . . . . . . . . . . . . . 7
COMPRESSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
PHASING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
GAS PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
GAS CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
FLUE VENT HOOD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . 15
HEATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
HEATING SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . 15
COOLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
COOLING SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . 15
CIRCULATING FAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
PRE-START CHECK LIST . . . . . . . . . . . . . . . . . . . . . . . . . . 16
OPERATING INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . 16
TO TURN OFF GAS TO UNIT . . . . . . . . . . . . . . . . . . . . . . . 16
POST-START CHECK LIST (GAS) . . . . . . . . . . . . . . . . . . . 16
MANIFOLD GAS PRESSURE ADJUSTMENT. . . . . . . . . . . 16
BURNER INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . 17
HOT SURFACE PILOT INSTRUCTIONS. . . . . . . . . . . . . . . 17
ADJUSTMENT OF TEMPERATURE RISE . . . . . . . . . . . . . 18
DIRECT DRIVE BLOWER . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
CHECKING GAS INPUT. . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
NATURAL GAS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
TYPICAL WIRING DIAGRAM NOTES
(SEE FIGURES 13, 14, AND 15) . . . . . . . . . . . . . . . . . . . . . 23
LIST OF FIGURES
Fig. # Pg. #
1 UNIT CENTER OF GRAVITY . . . . . . . . . . . . . . . . . . . . 5
2 FIELD WIRING DIAGRAM CONTROL WIRING. . . . . . 7
3 POWER WIRING FIELD DIAGRAM . . . . . . . . . . . . . . . 7
4 EXTERNAL SUPPLY CONNECTION EXTERNAL
SHUT-OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 FLUE VENT OUTLET AIR HOOD. . . . . . . . . . . . . . . . 11
6 UNIT DIMENSIONS - FRONT. . . . . . . . . . . . . . . . . . . 13
7 UNIT DIMENSIONS - FRONT & BOTTOM. . . . . . . . . 14
8 UNIT DIMENSIONS - BACK & BOTTOM . . . . . . . . . . 14
9 GAS VALVE - FRONT. . . . . . . . . . . . . . . . . . . . . . . . . 17
10 GAS VALVE - REAR. . . . . . . . . . . . . . . . . . . . . . . . . . 17
11 PROPER FLAME ADJUSTMENT. . . . . . . . . . . . . . . . 17
12 IGNITOR AND FLAME SENSOR ASSEMBLY. . . . . . 18
13 TYPICAL WIRING DIAGRAM DYZ (208/230-1-60) . . 20
14 TYPICAL WIRING DIAGRAM DYZ (208/230-3-60) . . 21
15 TYPICAL WIRING DIAGRAM DYZ (460-3-60) . . . . . . 22
16 R-410A QUICK REFERENCE GUIDE . . . . . . . . . . . . 23
LIST OF TABLES
Tbl. # Pg. #
1 UNIT APPLICATION DATA. . . . . . . . . . . . . . . . . . . . . . 4
2 UNIT WEIGHTS AND CENTER OF GRAVITY. . . . . . . 5
3 NATURAL GAS APPLICATION DATA . . . . . . . . . . . . . 9
4 PROPANE (LP) GAS APPLICATION DATA. . . . . . . . . 9
5 NATURAL GAS PIPE SIZING CHART . . . . . . . . . . . . 10
6 PROPANE (LP) GAS PIPE SIZING CHART. . . . . . . . 10
7 PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8 ELECTRICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . 12
9 UNIT DIMENSIONS FRONT. . . . . . . . . . . . . . . . . . . . 13
10 UNIT MINIMUM CLEARANCES . . . . . . . . . . . . . . . . . 13
11 GAS RATE - CUBIC FEET PER HOUR . . . . . . . . . . . 18

66435-BIM-B-1004
Unitary Products Group 3
INSTALLATION SAFETY INFORMATION
Read these instructions before continuing this appliance
installation. This is an outdoor combination heating and cool-
ing unit. The installer must assure that these instructions are
made available to the consumer and instruct the consumer to
retain them for future reference.
1. Refer to the unit rating plate for the approved type of gas
for this furnace.
2. Install this furnace only in a location and position as
specified on pages 4 and 5 of these instructions.
3. Never test for gas leaks with an open flame. Use com-
mercially available soap solution made specifically for
the detection of leaks when checking all connections, as
specified on pages 3 and 11 of these instructions.
4. Always install furnace to operate within the furnace’s
intended temperature-rise range with the duct system
and within the allowable external static pressure range,
as specified on the unit name/rating plate, specified on
pages 9 and 18 of these instructions.
5. This equipment is not to be used for temporary heating
of buildings or structures under construction.
GENERAL
DYZ units are cooling/heating air conditioners designed for
outdoor installation. Only gas piping, electric power and duct
connections are required at the point of installation.
The gas-fired heaters have hot surface to pilot ignition. The
tubular heat exchangers are aluminized steel.
The refrigerant system is fully charged with R-410A Refriger-
ant, and is tested and factory sealed.
The installer should pay particular attention to the words;
NOTE, CAUTION, and WARNING. NOTES are intended to
clarify or make the installation easier. CAUTIONS are given
to prevent equipment damage. WARNINGS are given to alert
the installer that personal injury and/or equipment damage
may result if installation procedure is not handled properly.
INSPECTION
As soon as a unit is received, it should be inspected for possi-
ble damage during transit. If damage is evident, the extent of
the damage should be noted on the carrier's freight bill. A
separate request for inspection by the carrier's agent should
be made in writing. Refer to Form 50.15-NM for additional
information.
MAINTENANCE AND RENEWAL PARTS
Refer to User’s, Maintenance and Service Information Man-
ual, Part No. 035-19777-000.
APPROVALS
Design certified by CSA listed as follows:
1. For use as a forced air furnace with cooling unit.
2. For outdoor installation only.
3. For installation directly on combustible flooring or, in
U.S., on wood flooring or Class A; B; C roof covering
material.
4. For installation on combustible material.
5. For use with natural gas and/or propane (LP) gas.
Not suitable for use with conventional venting systems.
FIRE OR EXPLOSION HAZARD
Failure to follow the safety warnings exactly could
result in serious injury, death or property damage.
Never test for gas leaks with an open flame. use a
commercially available soap solution made specif-
ically for the detection of leaks to check all connec-
tions. A fire or explosion may result causing
property damage, personal injury or loss of life. This product must be installed in strict compliance
with the enclosed installation instructions and any
applicable local, state, and national codes includ-
ing but not limited to, building, electrical and
mechanical codes.
Improper installation may create a condition where
the operation of the product could cause personal
injury or property damage.
This system uses R-410A Refrigerant which oper-
ates at higher pressures than R-22. No other
refrigerant may be used in this system.

66435-BIM-B-1004
4Unitary Products Group
NOMENCLATURE
INSTALLATION
LIMITATIONS
These units must be installed in accordance with the follow-
ing national and local safety codes.
1. National Electrical Code ANSI/NFPS No. 70 or Canadian
Electrical Code Part 1, C22.1 (latest editions).
2. National Fuel Gas Code Z223.1 or CSA B149.1 Installa-
tion Code.
3. Local gas utility requirements.
4. Local plumbing and waste water codes and other appli-
cable local codes.
Refer to Table 1 for unit application data and to Tables 3 and
4 for gas heat application data.
If components are to be added to a unit to meet local codes,
they are to be installed at the dealer's and/or the customer's
expense.
Size of unit for proposed installation should be based on heat
loss/heat gain calculations made in accordance with industry
recognized procedures identified by the Air Conditioning
Contractors of America.
D0 4 5
0
-F
PRODUCT CATEGORY
D = Single Package Air Conditioner
PRODUCT GENERATION
A = 1st Generation
NOMINAL COOLING
CAPACITY (MBH)
NOMINAL GAS HEATING
INPUT CAPACITY
045=45,000 BTUH
070=70,000 BTUH
080=80,000 BTUH
090=90,000 BTUH
110=110,000 BTUH
135=135,000 BTUH
FACTORY
INSTALLED GAS HEAT
N = Natural Gas Heat Installed
VOLTAGE CODE
=208/230-1-60
=208/230-3-60
3-60
=460-
N
F
T
W
YZ
A36
024=24,000 BTUH
030=30,000 BTUH
036=36,000 BTUH
042=42,000 BTUH
048=48,000 BTUH
060=60,000 BTUH
YZ = R-410A 12/13 Seer Gas Heat/Electric
PRODUCT IDENTIFIER
TABLE 1: UNIT APPLICATION DATA
Voltage Variation
Min. / Max.1
1. Rated in accordance with ARI Standard 110, utilization
range “A”.
208/230V2
2. “T1” transformer primary tap must be moved from the
230 volt connection to the 208 volt connection for low
voltage applications of 208 volt and below
187 / 253
460V 414 / 504
Wet Bulb Temperature (°F) of Air on
Evaporator Coil, Min. / Max. 57 / 72
Dry Bulb Temperature (°F) of Air on
Condenser Coil, Min.3/ Max.
3. A low ambient accessory is available for operation
down to 0°F.
45 / 120

66435-BIM-B-1004
Unitary Products Group 5
LOCATION
Use the following guidelines to select a suitable location for
these units.
1. Unit is designed for outdoor installation only.
2. Condenser must have an unlimited supply of air. Where
a choice of location is possible, position unit on either
north or east side of building.
3. For ground level installation, a level pad or slab should
be used. The thickness and size of the pad or slab used
should meet local codes and unit weight. Do not tie the
slab to the building foundation.
4. For roof top installation, be sure the structure will support
the weight of the unit plus any field installed components.
Unit must be installed on a level roof curb or appropriate
angle iron frame providing adequate support under the
compressor/condenser section.
5. Maintain level tolerance of unit to 1/8" maximum.
CLEARANCES
All units require certain clearances for proper operation and
service. Refer to Table 10 for the clearances required for
combustion, construction, servicing and proper unit opera-
tion.
RIGGING OR HANDLING
Care must be exercised when moving the unit. Do not
remove any packaging until the unit is near the place of
installation. Rig unit with slings placed under the unit.
Spreader bars of sufficient length should be used across the
top of the unit.
Units may also be moved or lifted with a fork-lift. Slotted
openings in the skid are provided for this purpose. Forks
must pass completely through the base.
Refer to Table 2 for unit weights and to Figure 1 for approxi-
mate center of gravity.
Excessive exposure of this furnace to contami-
nated combustion air may result in equipment
damage or personal injury. Typical contaminates
include: permanent wave solution, chlorinated
washes and cleaners, chlorine based swimming
pool chemicals, water softening chemicals, carbon
tetrachloride, halogen type refrigerants, cleaning
solvents (e.g. perchloroethylene), printing inks,
paint removers, varnishes, hydrochloric acid,
cements and glues, antistatic fabric softeners for
clothes dryers, masonry acid washing materials.
Do not permit overhanging structures or shrubs to
obstruct the condenser air discharge, combustion
air inlet or vent outlet.
Before lifting a unit, make sure that its weight is
distributed equally on the cables so that it will lift
evenly.
TABLE 2: UNIT WEIGHTS AND CENTER OF
GRAVITY
UNIT
SIZE
SHIPPING
WEIGHT
(LBS.)
OPERATING
WEIGHT
(LBS.)
CORNER WEIGHTS
(LOCATION, LBS.)
“A” “B” “C” “D”
024 365 360 91 88 89 92
030 395 390 98 95 96 99
036 400 395 100 96 98 101
042 470 465 131 129 101 103
048 475 470 133 130 102 104
060 485 480 136 133 105 107
FIGURE 1 - UNIT CENTER OF GRAVITY
"A"
"B"
"C"
"D"
49-1/8 25 25
47-1/4
FRONT
OF
UNIT
CENTER OF
GRAVITY