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Table of Contents
1.0 – SAFETY CONSIDERATIONS ....................................................................................................... 3
1.1 –
General ............................................................................................................................. 3
1.2 –
Installation Safety Considerations ..................................................................................... 3
1.3 –
Warranty ............................................................................................................................ 3
Physical Data ......................................................................................................................................... 5
Unit Dimensional Drawing.............................................................................................................. 6 – 7
2.0 – INSTALLATION ............................................................................................................................. 8
2.1
– Jobsite Survey ................................................................................................................... 8
2.2
– Plan for Unit Location ........................................................................................................ 8
2.3
– Rig and Place Unit ............................................................................................................ 8
2.4
– Positioning and Clearance ................................................................................................ 9
2.5
– Field Fabricate Ductwork .................................................................................................. 9
2.6
– Make Unit Duct Connections ............................................................................................ 9
2.7
– Trap Condensate Drain ................................................................................................... 10
2.8
– Outdoor Air-Vent ............................................................................................................. 10
2.9
– Make Electrical Connections ........................................................................................... 10
Electrical Data ..................................................................................................................................... 11
Electrical Resistance Heater Data ..................................................................................................... 12
Typical Wiring Schematic........................................................................................................... 13 – 14
3.0 – START–UP INSTRUCTIONS
......................................................................................................
15
3.1
– Unit Preparation .............................................................................................................. 15
3.2
– Internal Wiring ................................................................................................................. 15
3.3
– Compressor Mounting ..................................................................................................... 15
3.4
– Refrigerant Service Ports ................................................................................................ 15
3.5
– Compressor Rotation ...................................................................................................... 15
3.6
– Evaporator Fan ............................................................................................................... 15
3.7
– Condenser Fans and Motors .......................................................................................... 16
3.8
– Return – Air Filters .......................................................................................................... 16
3.9
– Base Unit Operation ........................................................................................................ 16
4.0 – SERVICE ..................................................................................................................................... 16
4.1
– Cleaning .......................................................................................................................... 16
4.2
– Lubrication ....................................................................................................................... 16
4.3
– Evaporator Fan Performance Adjustment ...................................................................... 17
4.4
– Evaporator Fan Service and Replacement ..................................................................... 17
4.5
– Belt Tension Adjustment ................................................................................................. 18
4.6
– Condenser – Fan Adjustment ......................................................................................... 18
4.7
– Refrigerant Charge.......................................................................................................... 18
4.8
– Protective Devices .......................................................................................................... 18
4.9
– Control Circuit, 24 – V ..................................................................................................... 19
5.0 – REPLACEMENT PARTS ............................................................................................................ 19
Fan Performance Table .............................................................................................................. 20 – 23
Cooling Chart .............................................................................................................................. 24 – 25
Troubleshooting .................................................................................................................................. 26
Start–up Check List ............................................................................................................................ 27
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Summary of Contents for DesertMaster 50TJM
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