Wisperkool 20 ton Manual
Portable Vertical
Air-Conditioning and Heating Systems
Installaon and Service Manual for 20 Ton Units
82”
81”
82”
44”
82”
81” 44”
Front with Duct Kit Side with Duct Kit
Front Side Back
726 Seneca Place Madison, WI 53711 608-334-5999
81”
82”
82”
20 TON
2
This manual addresses the 20 ton wisperkool™HVAC unit
for temporary cooling and heang soluons. This manual includes
technical informaon, start-up informaon, and unit maintenance.
The informaon contained in this manual is provided to ensure
the safe installaon and operaon of the equipment. It is for
reference only.
LIVE ELECTRICAL COMPONENTS!
During installaon, tesng, servicing and troubleshoong of this product, it may
be necessary to work with live electrical components. A qualied licensed elec-
trician or other individual who has been properly trained in handling live electri-
cal components must perform these tasks. Failure to follow all electrical safety
precauons when exposed to live electrical components could result in serious
injury or death.
FAILURE TO FOLLOW STATE AND LOCAL CODES
COULD RESULT IN DEATH OR SERIOUS INJURY.
All vercal HVAC units should be installed per the Naonal
Electric Code(NEC) and/or applicable state and local codes.
20 TON
3
General Unit Informaon
Refrigerant
Compressor
Evaporator Airow
Supply Air Connecons
Return Air Connecons
Evaporator Coil
Condenser Coil
Filter
General Informaon
20 TON
4
Cooling Capacity (MHB)
Entering Air Temp Temperature F (air over condenser)
Total
Electric Heat Air Temperature Rise
Heater kW Total MBH Temperature Rise (F)
Weights and Dimensions
Model Length Width Height Weight
20 TON
5
Fork Li Pockets
Warning!! Heavy Objects!
Use a forkli of suitable capacity to move the unit. Failure to
properly li unit could result in death or serious injury or possible
equipment or property damage.
20 TON
6
Electrical Informaon
DO NOT EXCEED AMP RATING
EXTERNAL POWER MUST MATCH VOLTAGE RATING 230/3/60
20 TON
8
82”
81”
82”
44”
82”
81” 44”
Front with Duct Kit Side with Duct Kit
Front Side Back
726 Seneca Place Madison, WI 53711 608-334-5999
81”
82”
82”
82”
81”
82”
44”
82”
81” 44”
Front with Duct Kit Side with Duct Kit
Front Side
Back
726 Seneca Place Madison, WI 53711 608-334-5999
81”
82”
82”
Line Drawings
Blower Access Panel
Electrical
Access
Panels
Condenser Coil
Compressor and
electrical
access panel
20 TON
9
Tent Installaon Guidelines
•Conrm that unit is properly leveled.
•Loosen Tent clamps on top and sides of unit
•Carefully slide the sidewall fabric under the tent clamps on each side and top
of the unit
•Tighten down the tent clamps using a 3/4 inch wrench or socket.
DO NOT OVER TORQUE THE TENT CLAMP BOLTS
This could permanently damage the tent clamps rendering them
ineecve. Clamps would need to be replaced. The warranty
would not cover this.
20 TON
10
Start-up Guidelines
1. Turn the black power handle to the “ON” posion.
2. The screen on the thermostat will show blue and read “OFF” when the
machine is ready to run.
3. Touch the thickest vercal bar above the screen.
4. The screen will show green when the machine is running in heat or cool
mode at 72 based on the inside temperature at LOW FAN speed.
5. Touch the thickest vercal bar above the screen again to run the machine at
HIGH FAN speed.
6. A yellow screen indicates that the machine is in the heat mode.
7. The thermostat temperature can be adjusted manually up or down by touch-
ing the ^ or
�
symbol below the screen.
8. Turn off the machine by touching the circle o symbol above the screen.
9. Turn the black power handle to the “OFF” position.
1324 5
678
* If the screen shows RED then switch the positions of the two left side power cords.
*
9
Proper power cable hook-
up for 230v/3/60 units
20 TON
11
Maintenance Guidelines
The motor and blower bearings are permanently lubricated and should not require
maintenance. The evaporator fans are belt driven. The drive belts should be rou-
nely examined for wear and correct tension. An incorrectly tensioned belt can
cause bearing or wear damage.
The belts can be tensioned by loosening the 4 bolts holding the motor to the
motor mount. Once the motor mount bolts are loose, adjust the belts by ghtening
or loosening the two 3/4 in. adjusng bolts on the boom of the motor mount
bracket. Reghten the 4 bolts holding the motor to the motor mount.
A properly tensioned belt has approximately 1 in. to 1 1/2 in. movement when both
legs of the belt are pressed in midway between the pulley and the sheave.
Each unit is provided with replaceable lters that are installed in the evaporator
return air secon. The return air grill must be removed to gain access to the
lters. Check lters periodically to verify that the lters are clean. Dirty lters will
severely reduce the performance of the machine.
Motor Mount Bolt
3/4 in. adjusng bolt Filters are behind the return air grille
Hazardous Voltage!
Disconnect all electrical power before servicing. Follow proper procedures to
ensure that the power cannot be inadvertently turned on. Failure to disconnect
power before servicing can result in serious injury or death.
Table of contents
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