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Curtis air conditioners feature an assembly of parts designed for your vehicle which require 
adjustment and alignment of components to accommodate vehicle variations and provide 
proper weather protection. For accurate installation, proper operation, and years of 
satisfaction, please read and understand the Service & Owner’s Manual fully prior to installing 
the air conditioner. 

 

  driver and passenger.

  Curtis accessory weights are listed in product

  add additional weight to the base vehicle. All

  Curtis Cabs, blades and general accessories

ADDED

WEIGHT

  brochures. Deduct the accessory's total weight

  from the vehicle's rated capacity and never

  exceed the vehicle's rated capacity including

 Exposure to Carbon Monoxide can Cause illness, seri-
ous injury or death.  
Never operate vehicle if suspicious 
of Carbon Monoxide.  Inspect exhaust system for leaks 
monthly.  Leaks can result from loose connections, corro-
sion, cracks or other damage to the exhaust manifold.  If 
leaks are found, repair or replace exhaust system.  Do not 
use vehicle until repair or replacement is complete. 

WARNINGS 

HELPFUL HINTS: 



Read and understand all instructions before beginning. 



Apply a silicone sealant to seal any minor gaps that may occur due to vehicle variations. 



Use caution to avoid damaging installed threaded inserts or weld nuts.  Begin the thread engagement by hand to avoid 
or correct potential cross threading. 



Plastic washers have been supplied to provide a weather seal under the heads of some exterior bolts. The plastic 
washer should be installed under each bolt head directly against the outside cab surface. Care should be taken not to 
over tighten the fasteners and damage the plastic washer.

 

GENERAL INFORMATION BEFORE YOU START 

California Health and Safety Proposition 65 Warning: 

This product may contain 

chemicals known to the state of California to cause cancer and birth defects or other repro-
ductive harm.  

 

Shock Hazard: 

Always disconnect the negative lead of the battery before servicing. 

 

Disclaimer: 

Always discharge air conditioner refrigerant in accordance with all federal, 

state, and local laws.

 

Summary of Contents for 1ACUNIT-G1

Page 1: ...me Experienced Dealer Technician 1 Hours Average Dealer Technician 1 5 Hours Do It Yourself 2 Hours Product Specifications 25 x 36 x 7 Weight 47 lbs Air Flow 260 CFM Cooling Capacity 12 000 BTU hr Vol...

Page 2: ...2 of 10 TABLE OF CONTENTS WARNINGS 3 4 FEATURES OPERATION 5 CARE AND MAINTENANCE 5 REFRIGERANT FLOW DIAGRAM 6 TROUBLESHOOTING GUIDE 7 SERVICE PARTS 8 10...

Page 3: ...ifold If leaks are found repair or replace exhaust system Do not use vehicle until repair or replacement is complete WARNINGS HELPFUL HINTS Read and understand all instructions before beginning Apply...

Page 4: ...hown above during installation and service Doing so will drain the oil from the compressor Do not receive the air conditioner from the shipping company if the air conditioner is standing up on end as...

Page 5: ...ant in compliance with federal state and local laws Replace the drier receiver 9SV 9AC 00003 when replacing a compressor 9SV 9AC 00006 Wash the painted surfaces of the air conditioner with commercial...

Page 6: ...FITTING 9SV 9AC 00025 COMPRESSOR 9SV 9AC 00006 SERVICE PORT LOW PRESSURE HIGH PRESSURE COMPRESSOR FITTING 9SV 9AC 00024 EVAPORATOR CORE 9SV 9AC 00002 DRIER RECEIVER 9SV 9AC 00003 PRESSURE SWITCH 9SV...

Page 7: ...red wire and near the battery Refer to alternator kit for details Diodes There are two diodes in what look like mini blade fuse holders located inside the A C unit as part the wire harness Do not repl...

Page 8: ...5 00005 LOW PRESSURE RETURN LINE P N 9SV 305 00007 RELAY 12V 20 40A SPDT MINI ISO P N 9SV 85 01 0022 EVAPORATOR CORE P N 9SV 9AC 00002 EVAPORATOR ASSEMBLY P N 8SV 304 00001 DRIER RECEIVER P N 9SV 9AC...

Page 9: ...AT P N 9SV 9AC 00008 HIGH PRESSURE COMPRESSOR FITTING W O RING P N 9SV 9AC 00024 2 8 LOUVER KIT 1 SET P N 9SV 9HR 00019 LOW PRESSURE COMPRESSOR FITTING W O RING P N 9SV 9AC 00025 AIR INTAKE GRILL P N...

Page 10: ...E P N 9SV WH 00069 WIRE HARNESS LEADS FOR SIGNAL WIRE CONTROLLER P N 9SV WH 00066 WIRE HARNESS A C ROOF UNIT P N 9SV WH 00049 9SV PRO2 15 5 8 STD BULB 1 16 GRIP 9SV AC 00019 15 3 8 PVC HOSE BLACK 1 2...

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