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      GENERAL SAFETY INFORMATION

1.

PRESSURIZED DEVICES:

This equipment is a pressure containing device
• Do not exceed maximum operating pressure as shown on equipment serial number tag.
• Make sure equipment is depressurized before working on or disassembling it for servicing.
• A pressure relief device must be added to this equipment.

2.

ELECTRICAL:

This equipment requires electricity to operate.
• Install equipment in compliance with national and local electrical codes.
• Equipment supplied as standard is not intended for installation in hazardous environments.
• Disconnect power supply to equipment when performing any electrical service work.

3.

BREATHING  AIR:

• Air treated by this equipment may not be suitable for breathing without further purification.
• Refer to OSHA standard 1910.134 for the requirements of breathing quality air.

RECEIVING, STORING, MOVING, AND UNPACKING

A. RECEIVING

This shipment has been thoroughly checked, packed and inspected before leaving our plant.
It was received in good condition by the carrier and was so acknowledged.

Upon receipt:

1.

Check for visible Loss or Damage
If this shipment shows evidence of loss or damage at the time of delivery to you, insist that a notation of
this loss or damage be made on the delivery receipt by the carrier’s agent.

2.

Check for Concealed Loss or Damage
When a shipment has been delivered to you in apparent good order, but concealed damage is found upon
unpacking, notify the carrier immediately and insist on his agent inspecting the shipment. Fifteen days from
receipt of shipment is normally the maximum time limit for requesting such inspection. Reporting damages
to the freight forwarder is the responsibility of the consignee.

B. STORING/SHUT DOWN

CAUTION:  

Dryer should not be stored outside (either crated or uncrated) or exposed to the weather. Damage to

electrical and control components may result.

IMPORTANT

 - WATER-COOLED UNITS

If unit is shut down in below freezing temperatures, the water-cooled condenser may freeze and cause perma-
nent damage.  Condenser must be drained using drain cocks located on the condenser when unit is shut down.

IMPORTANT 

- Do not store dryer in temperatures above 130

°

F, 54.4

°

C.

C. MOVING

Dryer is shipped on wooden pads to accommodate a fork lift truck. Move the dryer with a fork lift or rollers so as
to support it by the bottom of the frame or lift using lifting rings on frame.

CAUTION:  

Never lift dryer by attaching hooks or slings to the air inlet and outlet connections or to any part within

the dryer frame except lifting holes. Severe structural damage could result.

D. UNPACKING

Packaging material should be left in place until unit is in position.

CAUTION:  

Care should be taken during unpacking so that sharp objects do not come in contact with refrigera-

tion lines, condenser tubing, etc., as a refrigeration leak could result.

Summary of Contents for RHC Series

Page 1: ...sed air system 4 2 3 Mounting 4 2 4 Piping 4 2 5 Electrical 4 2 6 Air Cooled Models 5 2 7 Compressor tiedown nuts 7 1 2 and 10 horsepower units only 5 3 0 OPERATION 6 3 1 Start up and Shut down Proced...

Page 2: ...When a shipment has been delivered to you in apparent good order but concealed damage is found upon unpacking notify the carrier immediately and insist on his agent inspecting the shipment Fifteen day...

Page 3: ...rature no more water vapor will condense into troublesome liquid In addition the air is filtered of all solid particles three microns and larger Clean dry compressed air leaving the dryer minimizes ma...

Page 4: ...y hole in electrical enclosure If optional disconnect supplied use entry hole in disconnect enclosure 2 0 Installation 2 1 Location A A moderately heated well ventilated area is the best location for...

Page 5: ...sure that voltage to unit is as marked on unit nameplate and on condensing unit baseplate E Air Cooled models remote condensers wire condenser to terminals in dryer electrical enclosure identified on...

Page 6: ...ENERGIZED POWER ON LIGHT ILLUMINATED TWENTY FOUR 24 HOURS BEFORE START UP OF THE REFRIGERATION COMPRESSOR 1 After dryer has been energized at least twenty four 24 hours pull Master switch to on positi...

Page 7: ...ic drains F5 shift F1 Sensor calibration low pressure cutout setting password required F6 shift F2 English or metric unit selection F7 shift F3 Refrigerant low pressure cutout override F8 shift F4 Ele...

Page 8: ...mpressor Solid State Motor SSMP 2MTR Protector Open 2nd Compressor Motor Starter Protector Open MTR STARTER 1MTR Motor Starter Protector Open 2nd Compressor MTR STARTER 2MTR Low oil pressure OIL PRESS...

Page 9: ...9 Typical Wiring Schematic...

Page 10: ...INLET AIR TEMP Optional Indicates inlet air tempera ture is greater than 120 F 49 C 5 LOW EVAP AIR TEMP Optional Indicates air tempera ture in evaporator is below the set point 6 DRAIN LEVEL HIGH Opti...

Page 11: ...ld detergent using a long handled brush or a clean rag attached to a rod Manifold face must be free of dirt and grease to ensure proper O ring seal between top cap and manifold 6 Remove nut 3 and cap...

Page 12: ...on System Check system pressure after unit has been OFF for one 1 hour Com pare this pressure with the refrigeration pressure at ambient temperature They should be the same If system pressure is high...

Page 13: ...scharge valve Check to see that it is fully open 2 Low or high water temperatures at the condenser outlet The condenser is regulated by a pressure actuated water regulating valve supplied by the facto...

Page 14: ...after flushing and wiping further cleaning is desirable The color of this coating varies with water conditions but roughness indicates cleaning tools should be used A set of recommended cleaning tool...

Page 15: ...5 9 3 195 200 34 8 15 1 20 1 1 4 166 160 30 8 9 8 206 880 36 9 18 6 25 1 1 2 213 440 39 5 11 4 278 620 49 7 20 0 30 1 1 2 247 340 45 8 16 6 306 680 54 7 26 0 35 2 1 2 315 820 58 4 11 9 395 460 70 5 15...

Page 16: ...ts kit Reassemble float arm assembly to valve stem assembly using new pivot pin and retainer clip from repair parts kit f Remove valve sleeve 5 from valve stem assembly and replace valve disc 4 with n...

Page 17: ...s positioned in open area of seal ring retainer For 506 series models make sure rod on top of float assembly fits into hole in seal ring retainer as shown in Detail C n Before reassembling shell make...

Page 18: ...efrigerant 4 Water cooled units A Insufficient water flow thru condenser 1 Water regulating valve not adjusted Adjust water regulating valve 2 Dirty water strainer Clean water strainer 3 Water lines t...

Page 19: ...nsor bulb for looseness and correct location 5 Piping vibration Support pipes as required check pipe connections 6 Hissing insufficient refrigerant flow thru Reclaim refrigerant replace strainer expan...

Page 20: ...turer Normal maintenance items requiring routine replacement are not warranted Unauthorized service voids the warranty and any resulting charge or subsequent claim will not be paid Products repaired o...

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