TemperZone ISD 380KBY Installation & Maintenance

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

W

X

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three lters to be withdrawn from either side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

1

2

3 RPM

0 001000

1

00 1100

0

1

0 1200

11

0 1250

0 011300

1 011350

0 11 1400

1 111500

DIP Switch

Speed Range Fan Range

_ RPM

4

5

00 300

10 450

01 600

11 900

DIP Switch

Run On

6

(sec)

0 40

Standard

1

120

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

WUV

SR-

SR+

FR-MOFR+

0V

+12V

0-10V

ACL

E

PE

ACN

PE

Motor Driver

ECC2

E

WUV

SR-

SR+

FR-MOFR+

0V

+12V

0-10V

ACL

E

PE

ACN

PE

Motor Driver

ECC1

H

H

White

or

Red

White

or

Red