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DHG240, DHG180 Enthalpy Setpoint Adjustment, Unitary Products
Models:
DHG180
DHG240
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Troubleshooting
Install
Maintenance
Power And Control Wiring
Procedureforadjustingbelttension
Enthalpy Set Point Adjustment
Limit Control Setting
Safety
Power Exhaust Performance
230/460 VOLT AND HIGH SPEED DRIVE ACCESSORY
Page 12
Image 12
035-17233-000-C-0702
FIGURE 9 : ENTHALPY SETPOINT ADJUSTMENT
12
Unitary Products
Page 11
Page 13
Page 12
Image 12
Page 11
Page 13
Contents
INSTALLATION INSTRUCTION
CONTENTS
SUNLINE GAS/ELECTRIC SINGLE PACKAGE
AIR CONDITIONERS
TABLE OF CONTENTS
LIST OF FIGURES
LIST OF TABLES
SAFETY CONSIDERATIONS
FOR YOUR SAFETY IF YOU SMELL GAS a.Open windows
GENERAL
TABLE 1: PRODUCT NOMENCLATURE
INSTALLATION
AGENCY APPROVALS
INSPECTION
REFERENCE
LOCATION
RIGGING AND HANDLING
FIGURE 1 TYPICAL RIGGING
FIGURE 2 CENTER OF GRAVITY CLEARANCES
DUCTWORK
FIGURE 3 FIXED OUTDOOR AIR DAMPER
FIXED OUTDOOR AIR INTAKE DAMPER
SERVICE ACCESS
POWER AND CONTROL WIRING
CONDENSATE DRAIN
FIGURE 4 RECOMMENDED DRAIN PIPING
TABLE 3 CONTROL WIRE SIZES1
COMBUSTION DISCHARGE
GAS PIPING
GAS CONNECTION
CONTROLWIRING
POWER WIRING
FIGURE 5 TYPICAL FIELD WIRING
TABLE 4 GAS HEAT APPLICATION DATA1
TABLE 5 PIPE SIZING1
FIGURE 6 EXTERNAL SUPPLY CONNECTION
EXTERNAL SHUT-OFF
L.P. UNITS, TANKS AND PIPING
ENTHALPY SET POINT ADJUSTMENT
VENT AND COMBUSTION AIR HOODS
FIGURE 8 VENT AND COMBUSTION AIR HOODS
OPTIONAL ECONOMIZER/MOTORIZED DAMPER RAIN HOOD
FIGURE 9 ENTHALPY SETPOINT ADJUSTMENT
Unitary Products
TABLE 6 PHYSICAL DATA
TABLE 7 DHG VOLTAGE LIMITATIONS1
TABLE 8 MINIMUM CLEARANCES
TABLE 9 DHG ELECTRICAL DATA
FRONT
VIEW
Unitary Products
TABLE 10 UTILITIES ENTRY
230/460 VOLT AND HIGH SPEED DRIVE ACCESSORY
DHG180 - BOTTOM DUCT CONNECTIONS1
208 VOLT AND STANDARD DRIVE
230/460 VOLT AND STANDARD DRIVE
208 VOLT AND HIGH SPEED DRIVE ACCESSORY
230/460 VOLT AND HIGH SPEED DRIVE ACCESSORY
DHG240 - BOTTOM DUCT CONNECTIONS1
208 VOLT AND STANDARD DRIVE
TABLE 14 POWER EXHAUST PERFORMANCE
TABLE 13 STATIC RESISTANCES1
TABLE 15 BLOWER MOTOR AND DRIVE DATA
WET COIL
SAFETY CONTROLS
ECONOMIZER SINGLE OR DUAL WITH POWER EXHAUST
OPERATION
COOLING SYSTEM
SAFETY CONTROLS
HEATING SYSTEM
FIGURE 14 GAS VALVE PIPING
CONTINUOUS BLOWER
TABLE 16 LIMIT CONTROL SETTING
START UP
BURNERCOMPARTMENT
HEAT ANTICIPATOR SETPOINTS
MANIFOLD GAS PRESSURE ADJUSTMENT
FIGURE 17 PROPER FLAME ADJUSTMENT
POST-STARTCHECK LIST GAS
FIGURE 16 TYPICAL GAS VALVE
Procedureforadjustingbelttension
5.Afteradjusting,retightennutsA
thedeflection
isasfollows
ADJUSTMENT OF TEMPERATURE RISE
BtuhbInput ⋅
CFM = 1.08 ⋅ FbTempbRise
CHECKING GAS INPUT
MAINTENANCE
NORMAL MAINTENANCE
CLEANING FLUE PASSAGES AND HEATING ELE- MENTS
TO CLEAN BURNERS
TROUBLESHOOTING
FIGURE 21 TYPICAL FLUE BAFFLE INSTALLA- TION
035-17233-000-C-0702
Unitary
Norman
Products
York
