Mestek CABINET UNIT HEATERS Operating Manual Download Page 1

CUH-5

INSTALLATION, OPERATION AND MAINTENANCE MANUAL

CABINET UNIT HEATERS

ATTENTION: READ THIS MANUAL AND ALL LABELS ATTACHED TO THE UNIT(S) CAREFULLY BEFORE 
ATTEMPTING TO INSTALL, OPERATE OR SERVICE THE UNIT(S)! CHECK UNIT DATA PLATE FOR 
ELECTRICAL SPECIFICATIONS AND MAKE CERTAIN THAT THEY AGREE WITH THOSE AT THE POINT OF 
INSTALLATION. RECORD THE UNIT MODEL AND SERIAL NUMBER IN THE SPACE PROVIDED AND RETAIN 
FOR FUTURE REFERENCE.

Model Number _____________________________   Serial Number  ___________________________

WARNING: Improper installation, adjustment, alteration, service or maintenance can cause property 
damage, injury or death. Read the installation, operating and maintenance instructions thoroughly 
before installing or servicing this equipment.

INSTALLER'S RESPONSIBILITY

Installer Please Note:

 This equipment has been tested and inspected. It has been shipped free from 

defects from our factory. However, during shipment and installation, problems such as loose wires, leaks 
or loose fasteners may occur. 

It is the installer's responsibility to inspect and correct any problems 

of this nature that may be found.

INDEX

 

RECEIVING AND STORAGE . . . . . . . . . . . . . . . . . .  2

 

ADDITIONAL WARNINGS  . . . . . . . . . . . . . . . . . . . .  2

 

POWER SUPPLY AND CONNECTION . . . . . . . . . .  2

 

GENERAL INSTALLATION INSTRUCTIONS  . . .  2, 3

 

OPTION NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . .  3

 

MAINTENANCE INSTRUCTIONS  . . . . . . . . . . . .  3, 4

 

WARRANTY  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4

 

WEBSITE  & ADDRESS. . . . . . . . . . . . . . . . . . . . . .  4

260 North Elm Street - Westfield, MA 01085

Tel: (413) 568-9571 Fax: (413) 562-8437

www.mestek.com

4

COILS

Coils should be kept clean to insure proper heat 
transfer. Frequency of cleaning is dependent upon
operating environment. Coils may be vacuumed or 
the following method may be used: Brush the fins 
on the side where the air enters the unit and then 
operate the fan after placing a bag or dampened 
cloth over the discharge of the unit to catch the dirt. 
High pressure air may be used to blow dirt out from 
the air leaving side.

BLOWERS

Blowers may also be cleaned out using high pres-
sure air.

FILTERS

Filters should be cleaning using compressed air or 
washed with a mild detergent solution at intervals 
of three (3) months or sooner depending on job 
conditions.

CABINET UNIT HEATER LIMITED WARRANTY

Mestek, hereinafter referred to as the Company, warrants all material manufactured 
by it and to be delivered hereunder, to be free from defects in material, workmanship 
and title and to be as ordered. If within one (1) year from the date of any shipment by 
the Company, the Company is notified that the merchandise delivered hereunder does 
not meet the foregoing specific warranty, the Company's sole liability shall be, at its 
option, to refund the purchase price of the equipment or to correct any defect (the 
results of ordinary wear and tear, neglect, misuse or accident not to be deemed a 
defect) including non-conformity with specifications, by repairing any defective parts 
or, at its option, by furnishing replacement parts F.O.B. the factory where same are 
manufactured with all freight costs paid by the customer. The company is not liable for 
any damages to plant, personnel, equipment or products resulting from the use or 
misuse of any of its products and its sole liability shall be as set forth and as limited 
herein.

THE WARRANTIES SET FORTH ABOVE ARE IN LIEU OF ALL OTHER 
WARRANTIES, GUARANTEES OR REPRESENTATIONS WHETHER ORAL, 
WRITTEN OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY 
OR FITNESS FOR PURPOSE. THE COMPANY SHALL NOT BE LIABLE FOR 
CONSEQUENTIAL DAMAGES.

260 North Elm Street - Westfield, MA 01085

Tel: (413) 568-9571 Fax: (413) 562-8437

www.mestek.com

WATER

STEAM

03/13

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