EMI Chilled Water Cassette Evaporator CAF - Manual

[email protected] Enviromaster International LLC 1
produCt dEsCrIptIon
The CAF Chilled Water Cassette Evaporator is
available in three cabinet sizes with six cooling out-
put capacities from 8,000-36,000 Btuh. Fan speed
adjustments are available in all three cabinet sizes
to obtain required performance. Key features include
a condensate pump with safety switch and an 30” lift;
electric heat; fresh air inlet and branch duct knock-
outs; and motorized air vanes (18-36 only). The CAF
accepts a 24 volt thermostat control (thermostat not
included) or an infrared microprocessor control can
be obtained as a factory installed option. Hot water
coils are available on all CAF models (except for
12,000 Btu) in place of electric heat.
Due to ongoing product development, all designs
and specifications are subject to change without
notice.
standard FEaturEs
Materials of Construction - Galvanized steel chas-
sis with fire-resistant thermal and acoustic foam insula-
tion and pearl grey high-impact polystyrene fascia.
Air Systems:
• Fans are backward curved impeller centrifugal
design; dynamically and statically balanced; and
mounted on integral mounting rails.
• Single Fan models (08-20) designed with fire
retardant aluminum/plastic impellers.
• Twin Fan models (33-36) designed with fire re-
tardant plastic impellers.
• Motors are multispeed, enclosed type with thermal
protection and sealed lifetime bearings.
• Permanent, washable filter (user accessible).
• Branch duct knockouts on two sides for remote
discharge locations.
• Fresh air intake capability on three sides of cabi-
net (2 on CAF 08-12).
• Four flock coated air vanes; motor driven with auto
sweep or fixed position stop setting on models
18-36 (models 08-12 equipped with manually
adjusted air vanes).
Coil - is seamless, rifled copper tubing, arranged
in staggered configuration, with enhanced aluminum
fins tested to 460 psig. The tubes are mechanically
expanded for secure bonding to the fin shoulder.
Controls and Components (factory installed or
Supplied):
• Connections for 24V remote wall thermostat.
• Custom control board featuring anti-short cycle
timer, 60 second post purge fan relay, and on-
board 30 amp electric heat relay.
• Relays and connectors to condensing unit.
• Electric Heat
1.5kW (8000-12,000 Btuh)
3kW (18,000-20,000 Btuh)
5kW (33,000-36,000 Btuh)
• Condensate pump with 30” lift.
• 24V Transformer.
• Normally-closed relay and connectors to chilled
water supply.
System Options:
• 24V remote wall thermostat.
• Infrared microprocessor control (factory installed
only).
Specification
S
and
p
erformance
tWo and foUr pipe fan coiL
W/eLectric Heat
nominaL capacitieS:
8,000 - 12,000 - 18,000
20,000 - 33,000 - 36,000 Btuh
caf
cHiLLed Water caSSette
eVaporator
p/n# 240003233 rev. A [06/08]