IJD 2000, 2400
Ducted
Fan Coil Units
Installation &
Maintenance
GENERAL
The IJD ducted fan coil units must be
installed in accordance with all national and
local safety codes.
Options
1. Filters
2. Electric Elements c/w fan run-on timer
3. Polyester powder coat nish
ELECTRIC HEAT (Factory Fitted Option)
Refer to wiring diagram for size of elements
supplied. A fan run-on timer for rapid heat
dissipation is included with this option.
A 24 hour power supply is essential for this
timer to function correctly.
INSTALLATION
Positioning & Mounting
Provide 1 m minimum clearance to both
ends of the unit.
The unit has a built-in sloping drain tray,
therefore mount it level.
Fasten the unit down to a rm at horizontal
base using the six xing holes provided in
the mounting rails. Use the bunged holes
provided in the base of the lter box to
access the mounting rail holes from above.
When the unit is being installed on a roof
it is recommended that the unit is installed
on a substantial structure with vibration
isolating springs beneath the unit. These
springs are not supplied with the unit.
Condensate Drain
The unit has an internal sloping condensate
drain tray. The drain exit should be trapped
outside the unit cabinet. The trap should
have a vertical height of at least 100 mm.
The drain should have a slope of at least 1
in 50 and must not be piped to a level above
the unit drain tray. (Refer Fig.2).
For long condensate pipe runs, t a vent
pipe near the drain trap. The top of the vent
pipe must be at least 100 mm above the IJD
unit's drain tray.
It is essential that the drainage system is
checked by pouring water in the drain tray
and seeing that it discharges at the end of
the drain and does not overow the drain
tray.
ELECTRICAL WIRING
The electrical supply required is:
3 phase 380-415 V a.c. 50 Hz with neutral
and earth. The supply to have an isolation
switch adjacent to the unit but not attached
to the unit. Recommended external circuit
breaker size is 40 A/ph.
Dimensions (mm)
Not to Scale
Fig. 1
PROJECTION
MODEL A B C D E F G H J K L M N P
IJD 2000 1680 1385 1280 1525 120 405 730 405 815 495 1295 495 1297 1347
IJD 2400 1930 1535 1430 1825 75 480 775 480 890 325 1630 325 1447 1497
MODEL Wt (kg) POINT LOADS (kg)
(4/1 Coil) incl. water U V W X Y Z
IJD 2000 657 117 133 149 102 86 70
IJD 2400 809 144 163 184 125 106 87
NOTE
The manufacturer reserves the right to change
specications at any time without notice or
obligation. Certied dimensions available on
request.
Condensate Drain
OPEN
DRAIN
MINIMUM
SLOPE
20 mm PER m
(1 IN 50)
100 mm
MINIMUM
200 mm
APPROX.
'U' TRAP
100 mm
APPROX.
VENT PIPE
FOR LONG
CONDENSATE
DRAIN RUNS
Fig. 2
B
OVERALL
2280 OA
F
D
150
60
A
OVERALL
U W
X
Z
OPTIONAL
VERTICAL SUPPLY
AIR SPIGOT
1000 MINIMUM
CLEARANCE
1000 MIN.CLEARANCE
ACCESS
PANEL
ACCESS
PANEL
M
250890
G
100
250
J
E
2000
ELECTRICAL
BOX
K L
H
55
890
WATER CONNECTIONS:
4 x 50 (2") BSP MALE
N SPRING CTR
P FIXING CTR
DRAIN 38 BSPM
C
V
Y
Electrical work must be carried out by a
qualied electrician in accordance with local
supply authority regulations and the wiring
diagram.
UNITS WITH ELECTRIC HEAT
If electric elements have been included
(factory tted), a 24 hour power supply
is required to power the fan run-on timer.
Recommended external circuit breaker size
for a unit factory tted with electric elements
is 125 A/ph.
This electric heat kit includes both auto
(90°C) and manual (120°C) high temp.
safety thermostats. If the manual high temp.
safety t/stat requires resetting and the auto
high temp. safety t/stat does not reset, then
the latter needs to be replaced.
FAN SPEED
The fan motor is tted with a factory set
(mid position) adjustable pitch pulley. One
revolution of adjustment is equal to 7%
change in air volume ow rate.
To change the fan speed loosen the motor
mounting plate hold down screws, loosen
the pulley grub screws and turn the pulley
ange the desired amount. The pulley
adjustment is locked by tightening the grub
screws in the keyways.
When setting air ows ensure that the
pulleys are in alignment. Tension the belt by
adjusting the motor mounting plate.
Note: Do not operate the fan without
resistance (duct system) connected. Motor
will overload if fan is operated in a free blow
situation.
COMMISSIONING
1. Check that the thermostat is
correctly wired and set at the desired
temperature.
2. Check that the air lter (if tted) is clean.
3. Check that the fan runs freely without
vibration.
4. Check the indoor unit's fan belt tension
after 20 mins of operation and adjust if
necessary.
5. Check the airow at each air outlet
(diffuser) and adjust if necessary.
6. Check the tightness of all electrical
connections and sign the check label.
7. Check condensate drain for free
drainage.
8. If unit is installed outdoors, touch up any
paintwork damage to prevent corrosion.
MAINTENANCE
Weekly For First Four Weeks
1. Check air lter (if tted); vacuum clean as
necessary.
2. Check condensate drain for free
drainage.
Monthly
Check air lter (if tted); vacuum clean as
necessary.
Six Monthly
1. Check condensate drain for free
drainage.
2. Check heat exchanger coil; vacuum or
brush clean as necessary.
3. Check the tightness of the fan, motor
mountings, pulley and belt tension.
4. Check that fan motor is free running.
5. Check tightness of electrical connections.
5. Check air supply at diffuser outlets.
Yearly
1. Check fan shaft bearings and lubricate
with a lithium base grease.
2. If unit is installed outdoors, touch up any
paintwork damage to prevent corrosion.
NOTE
The manufacturer reserves the right to
change specications at any time without
notice or obligation. Certied dimensions
available on request.
This pamphlet replaces the previous issue
no. 2529 dated 06/15.
Wiring revsions C/C/D/E respectively.
Wiring
C
C
C
C
C
C
C
C
C
© temperzone limited 2016
Standard Unit with Electric Heat
06/15 Pamphlet No. 2529
C
D
D
D
D
D
D
E
E
E
E
Loading...