TemperZone ISD 380KBY Maintenance and service guide

ISD 380KBY
Ducted Split System
Indoor Units Installation &
Maintenance
GENERAL
These ISD 380KBY indoor unit is designed
to be coupled with the OSA 380RKTBV
outdoor unit. Units must be installed in
accordance with all national and local safety
codes.
Options
1. Filter Box c/w polypropylene net lter
2. Spring Mounting Kit
AIR FILTRATION / FILTER BOX (Option)
As air ltration requirements vary, lters are
not supplied with the unit. Filters should
ideally be installed on the return air side of
the unit, no closer than 500mm from the
back of the unit and easily accessible for
cleaning. To maximise the efciency of air
ow, the return air lter should be twice the
area of the ISD unit's return air spigot/s. If
efciency is less of a concern a Filter Box is
available.
The Filter Box is installed by unscrewing
the return air spigot and replacing it with
the lter box. The three lter panels may be
accessed from either side of the box. The
lter box adds 90 mm to the depth of the
unit.
Fig.1 Dimensions (mm)
Not to Scale
Note: The manufacturer reserves
the right to change specications
at any time without notice or
obligation. Certied dimensions
available on request.
CORNER LOADS (kg)
W X Y Z
44 48 58 53
PROJECTION
Net Weight 203 kg
600 MIN. CLEARANCE
ELECTRICAL
BOX
REFRIGERANT
CONNECTIONS
65
830 OA
HOLES
17 ID
2100
2315
OVERALL
DRAIN
28 OD
ACCESS
PANEL
705
OVERALL
290
70
WX
Y
Z
70
1706
275
585
60
REFRIG.
CONN’S
120
OPTIONAL
FILTER BOX
150
60
600 MIN. CLEARANCE
EC MOTOR
CONTROL BOX
EC MOTOR
CONTROL BOX
EC MOTOR
CONTROL BOX
2183
MOUNTING STRAP &
OPTIONAL SPRING MOUNTING CENTRES
806
OPTIONAL
SPRING
MTG CTRS
INSTALLATION
Positioning & Mounting
Provide 600 mm minimum clearance to
the end panels. If the lter box option is to
be used, allow adequate clearance for the
three lters to be withdrawn from either side
of the unit.
If low noise is a critical factor in the
installation, refer to Figure 5 for noise
isolation recommendations.
It is recommended that the unit be mounted
using the spring mounting system, supplied
as an optional extra (Fig.3). This system
minimises transfer of vibration into the
building structure.
If a more rigid installation can be tolerated,
then suspend the unit using the four
mounting straps supplied, as shown in
Figure 4. Use the existing bolts, nuts &
washers at the top corners of the unit.
Alternatively, the unit can be mounted on a
suitable platform using vibration isolators.
The unit must be installed with the drain tray
tilted about 10 mm along its length so that
the drain connection is at the lowest point.
Condensate Drain
The condensate drain should be trapped
outside the unit cabinet. The trap should
have a vertical height of at least 50 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 ISD
unit's drain tray.
It is essential that the drainage system
for the evaporator is checked by pouring
water in the drain tray and seeing that it
discharges at the end of the drain and does
not overow the drain tray.
INDOOR-OUTDOOR UNIT
CONNECTIONS
Refer to the relevant OSA Outdoor Unit
'Installation & Maintenance' pamphlet for
piping instructions. For wiring connections,
refer to the Outdoor Unit wiring diagram in
conjunction with the ISD wiring diagram on
this pamphlet.
ISD 380KBY

REFRIGERATION PIPING
Pipe Connection Sizes & Type
Liquid : 13 mm OD (1/2") sweat
Suction : 22 mm OD (7/8") sweat
The ISD is shipped from the factory with
a pressurised holding charge of nitrogen.
Immediately before removing any brazed
pipe connection's seal, reduce holding
charge to atmospheric pressure.
Warning: Failure to do so may cause injury.
Refer to the Outdoor Unit 'Installation &
Maintenance' pamphlet for evacuation
procedure and piping requirements.
ELECTRICAL WIRING
The electrical supply required (via the
Outdoor Unit) is specied on the Outdoor
Unit's wiring diagram.
Electrical work must be carried out by a
qualied electrician in accordance with local
supply authority regulations and the wiring
diagram.
In a free blow or low resistance application,
beware of exceeding the fan motor's full
load amp limit (refer Outdoor unit's wiring
diagram).
If 'Indoor Fan Off During De-ice' is a
requirement, refer to the outdoor unit's
installation instructions.
INDOOR FAN SPEED
The indoor fan speed can be 'Stepped' or
'Continuously Variable'. The choice is made
using Switch 1 of 'DIP1' on the EC Motor
Controller (one at each end of the unit).
Switches 1 to 5 on 'DIP2' determine the
minimum and maximum fan speeds.
The same 'Minimum rpm' and 'Maximum
rpm' settings apply to 'Stepped' and
'Continuously Variable'.
The default settings for DIP1 and DIP2 are
highlighted on the Wiring Schematic.
1. Stepped (DIP1 switch 1 = OFF)
Connecting the 24V AC power from the
unit’s 'HOT 24V' terminal to one (and only
one at a time) of the 'LOW 24V' / 'MED
24V' / 'HIGH 24V' terminals, selects the
'LOW' (Min. rpm), 'HIGH' (Max. rpm), or
'MED' (mid-way between) fan speed. The
transitions between speeds are smooth.
2. Continuously Variable (DIP1 switch 1=ON)
When using this method a temperzone
Analog Signal Isolator (No. 201-000-129)
must be tted and connected as shown
in the wiring schematic. 24V AC or DC
power from the external (BMS) controller
should be provided to the '24V' and '0V'
input terminals of the Signal Isolator
board.
A voltage below 2V DC applied across
the '0V' and the '0-10V' input terminals
(labelled 'From BMS Controller' in the
wiring schematic) of the Signal Isolator
will stop the indoor fan. A control voltage
of slightly more than 2V will cause the fan
to run at the 'Min. rpm' speed. A 10V DC
signal will run the fan at the 'Max. rpm'
speed. Control voltages between these
two limits can be used to achieve any
desired speed between 'Min.' and 'Max.'
rpm.
Do not use switch combinations
marked with 'DO NOT USE' in the
Speed Selection table.
If the air returning to the indoor unit is
regularly expected to be above 50%RH,
then the coil face velocity should be limited
to be 2.5 m/s or less (refer Air Handling
graph in Technical Data pamphlet).
High humidity levels can occur in tropical or
subtropical conditions, and/or when heavily
moisture laden fresh air is introduced. Select
a fan speed that avoids water carry-over
problems.
COMMISSIONING
Indoor Unit
1. Check that the thermostat is
correctly wired and set at the desired
temperature.
2. Check that any air lter (if tted) is
clean.
3. Check that the fan runs freely without
vibration.
4. Check condensate drain for free
drainage.
5. Run the unit in cooling and heating
modes.
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.
Fig. 2
OPEN
DRAIN
MINIMUM
SLOPE
20 mm PER m
(1 IN 50)
50 mm
MINIMUM
100 mm
APPROX.
'U' TRAP
100 mm
APPROX.
VENT PIPE
FOR LONG
CONDENSATE
DRAIN RUNS
UNIT
Condensate Drain
Fig. 3 Spring Mounting Fig. 4 Strap Mounting
ADJUSTABLE
MOUNTING STRAP
SUPPLIED (1 OF 4)
BOLTS, NUTS
& WASHERS
SUPPLIED
SECURED TO
UNIT
RECOMMENDED
MOUNTING
SYSTEM
(OPTIONAL
EXTRA)
4. Check that fan motor is free running.
5. Check tightness of electrical
connections.
6. Check air supply at diffuser outlets.
NOTE
The manufacturer reserves the right to
change specications at any time without
notice or obligation. Certied dimensions
available on request.
This pamphlet replaces the previous
issue no. 3826 dated 10/17.
Wiring revision H.

Recommendations for Noise Isolation
- particularly for high static installations:
1. Avoid installing units, with non-ducted return air, directly above
spaces where noise is critical.
2. Use exible connections between unit and rigid ducting.
3. Use generously sized acoustically lined ducts.
4. If generous duct size is not possible, use turning vanes on bends
to reduce air turbulence (regenerated noise).
5. Use 90° bends in ducting to signicantly assist in noise reduction.
Fig. 5 Application Considerations
FLEXIBLE CONNECTION
FLEXIBLE
CONNECTION
TURNING
VANES
SUPPLY
AIR DUCT
UNIT
(PLAN VIEW)
RETURN
AIR DUCT
MINIMUM OF 1 m
25 mm INSULATED DUCT
UNIT
FLEXIBLE CONNECTION
LINE SUPPLY DUCT WITH
ACCOUSTIC INSULATION
FOR NOISE CONTROL
SUSPENDED CEILING
RETURN AIR GRILLE LOCATED
AWAY FROM UNIT TO MINIMISE
NOISE TRANSMISSION
SUPPLY AIR
GRILLE
SUPPLY AIR DUCT
ALTERNATIVE FILTER LOCATION
WITH SWING OPENING GRILLE
FOR EASY SERVICING
DO NOT ATTACH CEILING WIRES
TO OR THROUGH DUCT
SPRING
MOUNTING
SYSTEM
DOUBLE LAYER OF
PLASTER BOARD
INSTALL INSULATED
NOISE ISOLATION
BOOT & FILTER WHERE
SOUND IS CRITICAL
ALTERNATIVE
RETURN AIR BOOT
FOR SAME EFFECT

02/18 Pamphlet No. 3826 © temperzone limited 2018
SDH
525-504-602
28-01-11
ISD 380KBY
WIRING SCHEMATIC
MR Med Speed Relay
ALC Analogue Level Controller
HR Hi Speed Relay
IFM Indoor Fan Motor
LR Low Speed Relay
DR De-ice Relay
HR MR LR
Green/Yel
White
or
Red Black
White
or
Red Black
FILTER
ELECTRIC
IFM 1
Yellow
Red Black White
Ferrite- Coil wires
3 turns around
ferrite core.
Separate these 3
wires from others.
Yellow
Com L M H +V 0V In +V 0V Out
INPUTS OUTPUT
DIP Switch
Refer table for settings
ALC
DO NOT USE ANY OTHER DIP SWITCH COMBINATIONS EXCEPT THOSE SHOWN IN THE TABLE BELOW. SHADED AREA = DEFAULT SETTINGS
IFM amps (max) 8.0A each
Green/Yel
Black Black
FILTER
ELECTRIC
IFM 2
Yellow
Red Black White
Ferrite- Coil wires
3 turns around
ferrite core.
Separate these 3
wires from others.
Yellow
L
N
Connect to
outdoor unit.
Indoor Fan Speed ALC DIP s/w
settings
DIP Switch Max Speed Setting Max Fan
123 RPM
0 00 1000
100 1100
0101200
11
01250
0 01 1300
1 01 1350
0 11 1400
1 11 1500
DIP Switch
Speed Range Fan Range _ RPM
45
00 300
10 450
01 600
11 900
DIP Switch Run On
6(sec)
0 40 Standard
1120 Elec. Heat
DIP Switch 7 & 8 - OFF -
N L
FM2 FM2
Black or Brown
Black or Brown
Black or Brown
Black or Brown
Heatsink
Heatsink
0V
0-10V
DRC
DR
DE-ICE
Deice Note: Only use this
terminal if this ISD unit is
connected to an OSA unit
with an OUC controller
INPUT INPUT
24V
LRC MRC HRC
COM 24V LOW 24V MED 24V HIGH 24V
DR
COMP 1 24V COMP 2 24V HEAT 24V
N L
FM1 FM1
FM2 FM1
F
Update Earthing on ECC 1260 Controllers/ Update
Earth Symbols.
N3811
29-11-16
J.S.L.
TB1
TB2
TB3
TB4
TB5
TB6
TB7
G
Added terminal block numbers for new push-in TBs. TB1 L & E swap position.
N3994
06-10-17
L.O.L.
H
ECC 1260 RENAMED MOTOR DRIVER
N4013
15-01-18
L.O.L.
E
W U V SR- SR+ FR- MO FR+ 0V +12V 0-10V ACL
E
PE ACN PE
Motor Driver
ECC2
E
W U V SR- SR+ FR- MO FR+ 0V +12V 0-10V ACL
E
PE ACN PE
Motor Driver
ECC1
H
H
White
or
Red
White
or
Red