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Model
Voltage
LB110216GWXXX
LB110226GWXXX
LB110416GWXXX
LB11426GWXXX
** Rated 90 F (32 C) inlet water and full air conditioning load. Actual usage will vary.
BENCH TESTING
When "Bench Testing" the air conditioner before mounting to the electronic enclosure, follow the procedures
outlined in the following paragraphs:
•
Refer to name plate for proper electrical current requirements, then connect the power cord to a properly grounded
electrical outlet.
•
Connect to clean, pressurized, water supply and provide drain.
NOTE:
Minimum circuit ampacity should be at least 125% of the amperage shown in the DESIGN
DATA section. To prevent overloading, no other equipment should be connected to this
current.
•
Make sure the unit has been in the upright (operating) position for at least 5 minutes.
•
Operate the air conditioner for five (5) or (10) minutes. No excessive noise or vibration should be evident during this
run period. The evaporator or cool air blower located on the upper portion of the unit and the compressor should
be running. To check cool air output, use a reliable air temperature measuring device. The cool air output should be
between 50 F to 60 F (10 C to 16 C) when room temperature is between 70 F to 80 F (21 C to 27 C).
•
You may remove the front panel to further check the operation. The discharge line from he compressor (the
uninsulated line) should become very warm. Condenser water should begin to flow from the outlet port soon after
start-up and continue for a short time after shut-down.
•
The compressor is provided with automatic reset thermal overload protection. This thermo switch is located and
mounted inside the plastic enclosure clipped to the compressor. The only time this switch should operate is when
the compressor overloads due to amperage exceeding nameplate rating. The thermal overload switch will actuate
the stop compressor operation. The blower will continue to operate and water will continue to flow for a short time.
The compressor will not restart until the compressor has cooled and the thermal overload has reset.
•
The unit will also shut down if water supply is interrupted. See WATER USAGE, page 8.
89048707
RSPSupply - 1-888-532-2706 - www.RSPSupply.com
http://www.RSPSupply.com/p-19626-Hoffman-LB110426GW010-Water-Cooled-Rack-AC-230V-4000-BTU-Indoor.aspx
DESIGN DATA
Full Load
Hz
Amps
115
50/60
7.6/6.8
230
50/60
3.8/3.4
115
50/60
7.7/7.2
230
50/60
3.9/3.6
To avoid possible damage to the air conditioner, it must be in
an upright (vertical) position for a minimum of five (5) minutes
before functional testing is started.
© 2013 Pentair Equipment Protection
Phase
BTU/Hr
1
2000/2000
1
2000/2000
1
3900/4000
1
3900/4000
CAUTION
Max F (C)
Max Water
Water
Usage
Temp.
(GPM)**
90 (32)
0.5
90 (32)
0.5
90 (32)
0.5
90 (32)
0.5
Shipping
Weight
lbs (kg)
84 (38)
84 (38)
84 (38)
84 (38)
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