temperzone IMDL 130 Ducted Fan Coil Units Instruction Manual
- June 22, 2024
- temperzone
Table of Contents
IMDL 130
Ducted Fan Coil Units
Installation & Maintenance
IMDL 130 Ducted Fan Coil Units
Fig. 1 Dimensions (mm)
Note:
- Allow adequate clearance for the filter (if fitted) to be removed.
- IMDL 130 has two half length filters, 2 motors and 3 fans.
- Left handed models have drain exit nearer supply air side.
NOTE
The manufacturer reserves the right to change specifications at any time
without notice or obligation. Certified dimensions available on request.
Fig. 2 Optional Supply Air Spigots
GENERAL
The IMDL ducted fan coil units are available in Standard (-S), Medium (-M) or
High (-H) capacity motors, e.g.
IMDL 130-S, standard cap. 6 pole motor
IMDL 130-M, medium cap. 4 pole motor
IMDL 130-H, high capacity 4 pole motor
The IMDL ducted fan coil units must be installed in accordance with all
national and local safety codes.
Optional
- Supply air spigots adaptors, 250 dia (x4).
- Flexible hoses (uninsulated): 25 BSP (1″) part no. 060-085-003.
INSTALLATION
IMDL units are designed to be used with simple, short duct layouts. Units
should be located as close to the space to be air conditioned as acoustic
criteria allows.
When determining the position of the fan coil unit, allow adequate space
around the unit to facilitate water pipe/hose connections, future servicing
and maintenance. Ensure there is enough working space in front of the
electrical access panel. Allow adequate clearance for the filter to be
withdrawn to its full length from either end of the unit.
Alternatively the filter may be lifted out of its track.
Provision should be made for access to remove the unit from the ceiling if the
need arises.
Left handed models have drain exit on supply air side of the drain tray.
Install the unit suspended on threaded rods or bolts and locking nuts (not
supplied).
Alternatively mount each unit on vibration isolators on a suitable platform.
The unit must be installed level. Use the adjustable support bracket (see
figure 3) to lower the drain pipe outlet and provide a slope in the drain
tray.
WATER SUPPLY & RETURN
The IMDL unit’s IN and OUT water connections are male pipe threaded:
Cold 25 mm BSP
Hot 13 mm BSP
Warning: over-tightening of connections to the main water supply may
damage the unit.
It is recommended you use two temperzone 600 mm flexible high pressure water
hoses. These have female pipe threaded connections at each end. Maximum water
pressure for each hose is 1720 kPa (250 psi). The IMDL unit alone, excluding
hoses, will withstand 4480 kPa (650 psi).
Hoses may need to be insulated to meet local building regulations.
Poor quality water supply must be prefiltered and it is essential that
adequate water treatment is maintained, particularly where open cooling towers
are used.
Condensate Drain
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. Fit a vent pipe within 500 mm of the unit
(see Fig.3). Use flexible tube to connect the unit’s drain stub to the
external drain pipe.
Check the drain by pouring water into the drain tray and ensuring that it
clears.
ELECTRICAL WIRING
The electrical supply required is: 1 phase 220-240 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 is 5 amp.
Electrical work must be carried out by a qualified electrician in accordance
with local supply authority regulations and the wiring diagram.
INDOOR FAN SPEED
The fan speed can be set to LOW, MED, or HIGH – whichever best suits the application.
ELECTRIC HEAT (Option)
Units installed with electric heat elements include 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.
COMMISSIONING
- Check that the thermostat is correctly wired and set at the desired temperature.
- Check that the air filter is clean.
- Check that the fan runs freely without vibration.
- Check condensate drain for free drainage.
MAINTENANCE
Weekly For First Four Weeks
- Check air filter; vacuum clean as necessary.
- Check condensate drain for free drainage.
Monthly
Check air filter; vacuum clean as necessary.
Six Monthly
- Check condensate drain for free drainage.
- Check heat exchanger coil; vacuum or brush clean as necessary.
- Check the tightness of the fan.
- Check that fan motor is free running.
- Check tightness of electrical connections.
- Check air supply at diffuser outlets.
NOTE
The manufacturer reserves the right to change specifications at any time
without notice or obligation. Certified dimensions available on request.
Fig. 3 Condensate Drain This pamphlet replaces the previous issue no.
3180 dated 05/24.
Fig.3 flex. drain connection
Standard Unit
Standard Unit c/w Electric Heat
05/24 Pamphlet No. 4062
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