III. Start Up Cooling Section and
CONTENTS
SAFETY CONSIDERATIONS
II. Start Up Heating Section and
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II. STEP 2 Ð PROVIDE UNIT SUPPORT A. Roof Curb
RECEIVING AND INSTALLATION
I. STEP 1 Ð CHECK EQUIPMENT A. Identify Unit
B. Inspect Shipment
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Fig. 10 Ð Roof Curb Dimensions
Fig. 13 Ð Suggested Rigging for Units With
Fig. 11 Ð Slab Mounting Details
Fig. 12 Ð Suggested Rigging for Units Without
Base Rail
VI. STEP 6 Ð CONNECT CONDENSATE DRAIN
VII. STEP 7 Ð INSTALL FLUE HOOD
VIII. STEP 8 Ð INSTALL GAS PIPING
B. Units With Optional Base Rail
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Table 1 Ð Physical Data Ð Unit 588A
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Table 2 Ð Physical Data Ð Unit 589A
Fig. 15 Ð Sediment Trap
IX. STEP 9 Ð INSTALL DUCT CONNECTIONS
A. Conguring Units for Down¯ow Vertical Discharge
Fig. 17 Ð Lance Location for Vertical Duct
Table 3 Ð Maximum Gas Flow Capacity
Fig. 16 Ð Supply and Return Duct Openings
Fig. 18 Ð Vertical Duct Cover Removed
Fig. 20 Ð Vertical Discharge Cover Removed
X. STEP 10 Ð INSTALL ELECTRICAL CONNECTIONS
A.High-VoltageConnections
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Table 4A Ð Electrical Data Ð Unit 588A
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Table 4B Ð Electrical Data Ð Unit 589A
Fig. 21 Ð High- and Control-VoltageConnections
B.Special Procedures for 208-VOperation
PRE-START-UP
E. Heat Anticipator Setting
Fig. 22 Ð Easy Select Interface Board
F. Transformer Protection
I. CHECK FOR REFRIGERANT LEAKS
II.START UP HEATING SECTION AND MAKE ADJUSTMENTS
C. Adjust Gas Input
Fig. 23 Ð Fan Blade Clearance START-UP
Fig. 24 Ð Burner Assembly
D.Check Burner Flame
E. Air¯ow and Temperature Rise
Fig. 25 Ð Monoport Burners
F. Heating Sequence of Operation
G. Limit Switches
H. Auxiliary Limit Switch Ð Rollout
III.START UP COOLING SECTION AND MAKE ADJUSTMENTS
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C. Indoor Air¯ow and Air¯ow Adjustments
B. Checking and Adjusting Refrigerant Charge
Table 8B Ð Superheat Charging Table, 588A024
Table 8A Ð Superheat Charging Table, 588A018
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Table 8C Ð Superheat Charging Table, 588A030
Table 8D Ð Superheat Charging Table, 588A036
Table 8E Ð Superheat Charging Table, 588A042
Table 8H Ð Superheat Charging Table, 588A060
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Table 9A Ð Superheat Charging Table, 589A024
Table 9B Ð Superheat Charging Table, 589A030
Table 9C Ð Superheat Charging Table, 589A036
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Table 9D Ð Superheat Charging Table, 589A042
Table 9E Ð Superheat Charging Table, 589A048
Table 9F Ð Superheat Charging Table, 589A060
Deduct 10% from Cfm and Watts for 208 V Operation
Table 10 Ð Required Suction-TubeTemperature F
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Deduct 10% from Cfm and Watts for 208 V Operation
Deduct 10% from Cfm and Watts for 208 V Operation
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Deduct 10% from Cfm and Watts for 208 V Operation
Table 15 Ð Dry Coil Air Delivery* Ð Heating Ð
Motor Units at 230-VDeduct 10% from Cfm for
Operation
Table 17 Ð Wet Coil Pressure Drop
MAINTENANCE
D. Cooling Sequence of Operation
III.EVAPORATOR BLOWER AND MOTOR
Fig. 34 Ð Blower Housing and Flue Collector Box
I. AIR FILTER
II. UNIT TOP REMOVAL
VII. BURNER IGNITION
Fig. 35 Ð Burner Access Panel
VI. LIMIT SWITCH
V. COMBUSTION-AIRBLOWER
XIII. GAS INPUT
XI. ELECTRICAL CONTROLS AND WIRING
X. CONDENSER FAN
XII. REFRIGERANT CIRCUIT
CAUSE
TROUBLESHOOTING Cooling
SYMPTOM
Three-phasescroll
Integrated control
IFM runs when it
Poor ¯ame characteristics
Cooling cont
4 consecutive limit switch
LED Troubleshooting Ð Error Code
Limit switch fault
Flame sense fault
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I. PRELIMINARY INFORMATION
START-UPCHECKLIST
TEMPERATURES
Remove and Store in Job File