York D3EG 036 User Manual
035-14832-003-A-0204
2
Unitary Products Group
General................................................................................1
Inspection ............................................................................1
Reference............................................................................1
Approvals ............................................................................1
Nomenclature ......................................................................2
INSTALLATION
Limitations ...........................................................................3
Location...............................................................................3
Rigging and Handling ..........................................................3
Clearances ..........................................................................3
Ductwork .............................................................................3
Filters...................................................................................4
Condensate Drain ...............................................................4
Service Access....................................................................4
Thermostat ..........................................................................4
Power and Control Wiring ...................................................4
Blower Speed Selection ......................................................4
Compressors .......................................................................4
Combustion Discharge ........................................................4
Disconnect Switch Bracket For Optional Belt-Drive ............5
Gas Piping...........................................................................5
Gas Connection...................................................................6
L.P. Units, Tanks and Piping ................................................6
Low NOx Application ...........................................................6
Vent and Combustion Air Hoods .........................................7
Optional Economizer Rain Hood .........................................7
OPERATION
Cooling System .................................................................13
Preliminary Operation Cooling ..........................................13
Cooling Sequence of Operation ........................................13
Safety Controls (Cooling) ..................................................13
Heating Sequence of Operation ........................................13
Safety Controls (Heating) ................................................. 14
Heat Anticipator Setpoints.................................................14
Pre-Start Check List ..........................................................14
START-UP
Operating Instructions .......................................................14
Post-Start Check List (Gas)...............................................14
Manifold Gas Pressure Adjustment...................................14
Pilot Checkout ...................................................................15
Burner Instructions ............................................................15
Burner Air Shutter Adjustment...........................................15
Supply Air Blower and Temperature Rise Adj....................15
Supply Air Blower and Temperature Rise Adj. ............15&16
Checking Gas Input...........................................................16
Secure Owner's Approval..................................................16
D
2
E G
4
N
PRODUCT NOMENCLATURE
PRODUCT GENERATION
2 = 2nd Generation
3 = 3rd Generation
PRODUCT CATEGORY
D = Single Package Air Conditioner
(Air Cooled)
PRODUCT IDENTIFIER
EG = High Efficiency Gas/Electric
VOLTAGE CODE
06 = 208/230-1-60
25 = 208/230-3-60
46 = 460-3-60
58 = 575-3-60
NOMINAL GAS HEATING
OUTPUT CAPACITY
036 = 3 Ton
048 = 4 Ton
060 = 5 Ton
0
0
3
0
6
2
5
FACTORY INSTALLED HEAT
N = Natural Gas
NOMINAL COOLING
CAPACITY
040 = 40 MBH
060 = 60 MBH
079 = 79 MBH
099 = 99 MBH
MAINTENANCE & TROUBLESHOOTING
Normal Maintenance .........................................................17
Cleaning Flue Passages and Heating Elements ...............17
Troubleshooting ........................................................18 & 19
TABLES
No. Description Page
1
Unit Application Data..................................
3
2
Gas Heat Application Data.........................
4
3
Pipe Sizing .................................................
5
4
Physical Data .............................................
8
5
Supply Air Perf. Direct-Drive Units ............
8
6
Supply Air Perf.3 & 4Ton Belt-Drive Units ..
9
7
Supply Air Perf.5 Ton Belt-Drive Units .......
10
8
Static Resistances......................................
11
9
Motor & Drive Data.....................................
11
10
Electrical Data (Direct-Drive Units) ............
11
11
Electrical Data (Belt-Drive Units)................
11
12
Limit Control Setting...................................
14
13
Belt-Drive Supply Air Motor Pulley Adj.......
15
14
Gas Rate - Cubic Feet Per Hour ................
16
FIGURES
No. Description Page
1
Center of Gravity ........................................
3
2
Recommended Drain Piping ......................
4
3
Typical Field Wiring....................................
5
4
External Supply Connection.......................
6
5
Bottom Supply Connection.........................
6
6
Vent and Combustion Air Hoods................
7
7
Economizer Rain Hood Assembly..............
7
8
Enthalpy Setpoint Adjustment....................
8
9
Dimensions and Clearances ......................
12
10
Gas Valve Piping........................................
13
11
Typical Gas Valve.......................................
14
12
Proper Flame Adjustment ..........................
15
13
Typical Flame Appearance.........................
15
14
Belt Adjustment..........................................
15
15
Press. Drop versus Supply Air CFM ..........
16
TABLE OF CONTENTS