EMI CAC_36, Инструкция по установке, эксплуатации и обслуживанию

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5 Cassette Air Handler
STANdARd fEATURES
Continued
CASSETTE CONTROLS ANd COmpONENTS
Continued
Fresh air connection: f
resh air may
be introduced to the unit by the addition
of ducts connected to the fresh air knock
-
outs on the Cassette case. Recommend
-
ed maximum length 10’ (3m) of 4” (0.1m)
diameter duct. The fresh air volume is ap
-
proximately 7-10% of the unit’s published
maximum air flow (if more than 10% make
up air is needed, a fresh air booster fan is
required). Refer to
Performance Data sec-
tion of this manual for further information.
The Cassette is best installed in new con
-
struction or existing construction with a sus-
pended or false ceiling with enough clear
-
ance to accommodate concealing the piping
and electrical connections to the unit.
pREpARATION fOR INSTALLATION
U
npacking: The Cassette fascia and
main chassis are packaged together for
increased protection.
• Remove the banding straps and lift the
cardboard lid.
• Fascia is packed in bubble wrap and on
top of the chassis (fascia is not attached
to the chassis for shipping).
•
C
ardboard template is between the
chassis and the fascia (
DO NOT throw
template away with packaging!).
• Lift the fascia and template from the box
and set aside.
• Remove the Cassette chassis from the
box utilizing the four corner brackets
for lifting. DO NOT
use the drain or re
-
frigerant connections for lifting.
• In order to protect the fascia from dirt
and damage, it should be returned to
the box until it is ready to be installed.
Blanking off:
When branch ducting
is to be used, two polystyrene pieces for
blanking off fascia openings are Included
with the fascia packing. Up to two non-
adjacent sides may be blanked off.
DO NOT
throw the two polystyrene blanking
off pieces out with packaging!
Electromechanical Operation (Stan-
dard): An optional thermostat can be ob
-
tained through
EMI
or your local distributor.
NOTE:
make sure the thermostat is suitable for
unit operation (i.e., cooling only, cooling/electric
heat, heat pump.)
Filters:
Metal framed filters are fitted. These
are reusable and may be vacuum cleaned.
Condensate pump:
A condensate
pump is designed to carry water out of
the unit. The pump is fixed to a mounting
bracket which can be withdrawn from the
side of the chassis and incorporates an
inspection hole to allow a visual check of
the pump during operation. A float switch
is fitted to stop the cooling action (shut off
the compressor) should the pump become
blocked or fail.
IMpORTANT:
Total lift for this pump is 36”
(0.9 m) or less.
Air vanes: Air outlet vanes are manual-
ly adjustable on the Cassette 12’s or driv
-
en by an electric motor on the Cassette
24’s and 36’s. Where fitted, the motorized
air vanes can be set to auto sweep or can
be stopped in a fixed position.
Heating:
The Cassette may be fitted with
electric heaters which are equipped with
over-temperature limit switches. Consult fac
-
tory for available models with electric heat.
System Options:
• Infrared Hand Held Controller
(CACB/CAHB only)
• 24V
remote wall thermostat
• Electric Heat (@ 230V)
1.5 kW (Cassette 12’s)
3 kW (Cassette 24’s)
5 kW (Cassette 36’s)