Technical data

Maintenance Procedures
Perform the maintenance procedures outlined below
periodically, as indicated.
To prevent injury or death due to electrical shock or
contact with moving parts, open unit disconnect
switch before servicing unit.
Filters: Inspect filters. Establish a regular maintenance
schedule. Clean filter, and maintenance frequently
depending upon need.
To remove the filter from a Horizontal and Vertical unit,
slide the filter out of its frame located in the return air
opening at the bottom front of the unit. When re-
installing the filter, use the slide-in rails of the filter
frame to guide the filter into the proper position.
To avoid fouled machinery and extensive unit clean-
up, DO NOT operate units without filters in place.
DO NOT use equipment as a temporary heat source
during construction.
Condensate Pans: Check condensate drain pans for
algae growth every three months. If algae growth is
apparent, consult a water treatment specialist for proper
chemical treatment. The application of an algaecide
every three months will typically eliminate algae
problems in most locations.
Fan Motors: Lubricate fan motors annually. All
ClimateMaster Horizontal and Vertical units are fully
lubricated at the factory. DO NOT oil during installation.
Conduct amperage checks annually. Amperage draw
should not exceed normal full load or rated load amps by
more than 10 percent of the values noted on the unit
nameplate. Maintain a log of amperage values to detect
deterioration prior to component failure.
Unit Inspection: Visually inspect the unit annually. Pay
special attention to hose assemblies. Repair any leaks and
replace deteriorated hoses immediately.
Compressor: Conduct an amperage check on the
compressor annually. Amperage draw should not exceed
normal full load or rated load amps by more than 10
percent of the values noted on the unit nameplate.
Maintain a log of amperage values to detect deterioration
prior to component failure.
When replacing the compressor contactor or lockout
relay in a unit with electromechanical controls, use
only ClimateMaster replacement parts. Substitution
of other components may result in an inoperative
safety circuit and may cause a hazardous condition.
Heat Exchangers: Clean heat exchangers annually. Inspect
heat exchangers regularly, and clean more
frequently if the unit is located in a “dirty” environment.
Safety Control Reset
All ClimateMaster Horizontal and Vertical units are
furnished with high and low pressure cutouts to prevent the
machine from operating at abnormal or damaging
temperature or water flow conditions.
The contacts of the high-pressure control used on Horizontal
and Vertical units are designed to open at 380 psig and
automatically close at 300 psig. The contacts of the low-
pressure switch open at 10 psig and close at 32 psig. The
contacts of the low-temperature switch open at
33.5°F and re-close at 45°F. A lockout relay, electrically
linked with these cutouts, interrupts unit operation. The unit
must be reset manually.
Note: If the unit must be reset more than twice, check
the unit for a dirty filter, abnormal entering water
temperature, inadequate or excessive water flow and
internal malfunction. If the unit continues to cutout,
contact a trained service technician.
MAINTENANCE
ClimateMaster works continually to improve its products. As a result, the design and specifications of each product at the time of order may be changed
without notice and may not be as described herein. Please contact ClimateMaster’s Customer Service Department at 1-405-745-6000 for specific
information on the current design and specifications. Statements and other information contained herein are not express warranties and do not form the
basis of any bargain between the parties, but are merely ClimateMaster’s opinion or commendation of its products.
7300 S.W. 44th Street
Oklahoma City, OK 73179
Phone: [phone]
Fax: [phone]
www.climatemaster.com
*69197301*
Part #: 69197301
© ClimateMaster 1994 Rev.: 4/01
▲ CAUTION
!
WARNING