TemperZone ISD 380-950 Series Instruction manual

Cooling Capacity
37.6kW - 94.9kW
Heating Capacity
35.9kW - 90.1kW
Ducted Split System Air Conditioners
Technical Data
ISD 380, 465, 570, 670, 840, 950

Page 2
Ducted Split System Air Conditioners
Contents
ISD 380–950
General 3
Applications 4
Air Flow Selection 4
Features
Refrigerant R410A 4
Economical 4
Efficient 4
Quiet 4
Performance 4
Durable 4
Low Maintenance 4
Soft Starting 4
Control Option 5
Insulation 5
Self Diagnostics 5
Optional Equipment
Outdoor Unit 5
Indoor Unit 5
Safety Features 5
Compressor 5
Refrigeration Piping 5
Wiring 5
Plug Fan Advantages 6
Digital Version
Digital Scroll Compressor 6
Extended Capability 6
PERFORMANCE DATA
Cooling Capacity (kW) 7
Indoor Air Flow Correction Factors
@ nominal conditions
8
Pipe Length Capacity Loss 8
Heating Capacity (kW) 9
Air Handling 10
Sound Levels 12
DIMENSIONS (mm)
ISD Indoor Units 14
OSA Outdoor Units 18
SPECIFICATIONS 21

Page 3
Ducted Split System Air Conditioners
ISD 380–950 Series
The ISD indoor unit, together with its associated OSA
outdoor unit, provides a reverse cycle (heat pump)
split system air conditioner designed and developed
to comply with and exceed AS/NZS 3823 specified
conditions.

Page 4
Applications
These units have been specifically developed for air conditioning of
commercial premises, e.g. offices, motels, shops and restaurants
Ducted Split System Air Conditioners
ISD 380–950 Series
AIR FLOW SELECTION
If the air returning to the indoor coil is regularly expected to be above
50%RH, then the coil face velocity should be limited to be
2.5 m/s or less.
High humidity levels can occur in tropical or subtropical conditions,
and/or when heavily moisture laden fresh air is introduced.
Consideration must always be given to selecting an air flow and face
velocity that avoids water carry-over problems.
Applications using full or high proportions of fresh air should be
referred to your nearest temperzone sales office to establish the
correct selection of units.
Refrigerant R410A
Each complete system uses refrigerant
R410A which has a zero ozone depletion
potential.
Economical
These ISD/OSA systems have two
independent refrigeration circuits to provide
the flexibility and economy of two stage
operation, i.e. utilising one or two circuits as
conditions vary, plus the advantage of
staggered starting.
Efficient
Each outdoor unit incorporates a high
efficiency scroll compressor. ISD 380 indoor
units include high efficiency EC motors.
Heat exchange coils incorporate inner
grooved (rifled) tube for better heat transfer.
Quiet
ISD 380 models: Each integral high
efficiency electronically commutated (EC)
motor can vary from zero to full speed. This
allows slow ramp up with no sudden noise
change. The motor can be controlled to
have the best air flow for the ducting and
requirements as well as used for
de-humidifying the space.
Outdoor noise is a function of how hard the unit
needs to work. When the outdoor unit is not
running at maximum capacity in mid- season
the outdoor fan speed and noise reduces.
The compressor is isolated in a built-in, insulated
compartment to minimise noise. The indoor unit
is also insulated for noise attenuation.
Performance
Use of forward curved fan enables fine
tuning of the indoor unit to match the supply
air requirements.
ISD 380KB-P models: Use of backward
curved plug fan enables fine tuning of the
indoor unit to match higher static pressure
supply air requirements.
EC motor fans have a fully integrated speed
control that enables soft starting. Fan speed
can be stepped to your own requirements
or continuously variable using a 0–10V DC
control signal.
The system includes a temperature sensing
head pressure control which enables the
system to compensate for outdoor ambient
temperatures below 20°C on cooling cycle,
and above 15°C on heating cycle.
Durable
The indoor and outdoor coil fins are epoxy
coated for extra protection in corrosive
environments, e.g. salt laden sea air. The
outdoor unit’s cabinet is constructed from
high grade galvanised steel - polyester
powder coated (grey) for all weather
protection (IP 44). External fasteners are
stainless steel. Heat exchange coils
comprise aluminium plate fins on
mechanically expanded rifled copper tube.
Coil protection guards are supplied. The
indoor unit’s cabinet is constructed from
high grade galvanised steel and also includes
a polyester powder coated drain tray.
Low Maintenance
EC motor models* - commissioning and
maintenance costs are reduced through use
of a fan that requires no pulley and belt
adjustments or changes like traditional fans.
FE ATURES

Page 5
Ducted Split System Air Conditioners
ISD 380–950 Series
Soft Starting
EC motor models* - EC motors are soft
starting therefore have none of the
problems associated with high in rush
current.
Control Option
EC motor models* - Fixed and stable air
flows can be achieved through use of a
differential pressure transducer and
controller (supplied by others) to
compensate for varying duct static
pressures caused by dirty filters or
modulating dampers. Commissioning is also
made easier. The system is set up for the EC
motor to be controlled variably by a 0–10
volt DC signal that can be supplied either by
a BMS system, a sophisticated controller or
temperzone’s optional TZT-100 Controller;
the optional Signal Isolator will be required in
this instance for ISD 380KBY models.
Systems’ using UC6 controller* are BMS
compatible with multi-unit control possible
– either via digital and analogue signals or via
Modbus. Refer to temperzone for protocols
available.
Insulation
Closed cell foam insulation has been used in
the indoor unit’s cabinet to ensure no
particles are introduced into the air stream.
The insulation is foil faced and meets fire
test standards AS 1530.3 (1999) and BS 476
parts 6 & 7.
Self Diagnostics
Systems that includes a controller (UC6)
have a 7 segment LED display to indicate
faults and running conditions. Many
operating status conditions (including
history) can be determined, without gauges,
simply by using the optional UC6 Service
Interface graphical display tool.
Note: OSA 870/950 use OUC4 controller.
OPTIONAL EQUIPMENT
Outdoor Unit:
UC6 Service Interface tool (OSA 310–670 only)
Indoor Unit:
1. Vertical supply air configuration.
2. Filters - EU4/G4 rated.
3. temperzone TZT-100 Room T/stat, or SAT-2 (24V) Controller kit
(for non-digitals).
4. Signal isolator (Item no. 201-000-129) for using EC motors
in a 0–10V DC continuously variable speed mode on
ISD 380KBY models.
SAFETY FEATURES
1. HP and loss of refrigerant protection.
2. Anti-rapid cycle timer and internal overload for compressor
protection.
3. Circuit breaker control circuits.
4. Time-and-temperature controlled electronic de-ice switch
prevents icing up of the outdoor coil during heating cycle.
5. Frost protection on cooling cycle.
6. Sensor fault indication.
7. Compressor minimum run time to ensure oil return.
8. Crankcase heater prevents liquid refrigerant condensing in the
compressors during the 'off' cycle.
9. Phase rotation protection device.
10. 24V control circuit
COMPRESSOR
Each high efficiency scroll type compressor is hermetically sealed,
quiet running and supported on rubber mounts to minimise
vibration.
REFRIGERATION PIPING
The standard unit allows for a line length up to 60 m or more ; refer
specifications table pages 19 & 20.
Max. height separations between units are:
Outdoor unit above indoor unit: 20m
Outdoor unit below indoor unit: 20m.
Each OSA is shipped from the factory with a charge of R410A
refrigerant sufficient for a 10m line length. Liquid and suction service
valves are provided. Accurator expansion devices control the flow of
refrigerant. The matched indoor unit is shipped with a holding charge
of nitrogen. Both units have brazed pipe connections.
WIRING
The electrical supply required is:
3 phase 380–415 V a.c. 50 Hz with neutral and earth.
The compressor crankcase heater requires a 24 hour power supply.
A control panel, located in each outdoor unit, is fully wired ready to
accept the main power supply. Each system complies with the
requirements of the Regulatory Compliance Mark (RCM) for
electrical safety (AS/NZS 60335.2.40) and EMC (AS/NZS CISPR.14).
* Refer Specification tables (p.19/20) to identify
applicable models

Page 6
Ducted Split System Air Conditioners
ISD 380–950 Series
Plug Fan Advantages
The ISD 380/570/670 KB-P models with EC motor and backward
curved plug fan design have the following advantages:
- higher static pressure performance (refer page 4)
- quieter than conventional fan (refer page 3); a large aperture
supply air spigot reduces exit velocities and therefore less noise
down ductwork. Each EC motor can vary from zero to full speed.
This allows slow ramp up with no sudden noise change.
- lower installation cost due to a large supply air spigot which
lessens the need for duct transitions.
- EC motors are soft starting therefore have none of the problems
associated with high in-rush current.
- commissioning and maintenance costs are reduced through
use of a fan that requires no pulley and belt adjustments or
changes like traditional fans.
- fixed and stable air flows can be achieved through use of a
differential pressure transducer and controller (supplied by
others) to compensate for varying duct static pressures caused
by dirty filters or modulating dampers. Commissioning is also
made easier.
- the system is set up for the EC motor to be controlled variably by
a 0–10 volt DC signal that can be supplied either by a BMS
system, a sophisticated controller or temperzone's optional
TZT-100 Controller.
- significant power savings are possible by slowing the fan during
low occupancy or after hours (75% airflow ≈55% power use).
Digital Version
Digital Scroll Compressor
A digital version of the some outdoor units (OSA 380) is available
that includes one fixed and one digital compressor. This provides
an enhanced variable capacity ability that enables closer control
of room temperature. Digital compressors have proven very
reliable because of their design simplicity. Electrical harmonic
noise is very low.
Extended Capability
Digitals are particularly suitable for applications requiring full or
high proportions of fresh air, VAV, close control and supply air
temperature control.

Page 7
COOLING CAPACITY (KW)
Total = Total Capacity (kW).
Sens. = Sensible Capacity (kW).
E.A.T. = Entering Air Temperature .
= Nominal Capacity (kW).
Ducted Split System Air Conditioners
Performance Data
Models Indoor Fan
Indoor coil
E.A.T. Outdoor coil entering air temperature °C D.B.
Indoor Unit
Outdoor Unit
Air
l/s
W.B.
°C
D.B.
°C
23 27 31 35 39 43
Total Sens. Total Sens. Total Sens. Total Sens. Total Sens. Tot al Sens.
ISD 380KB-P *
OSA 380 2100
15 21 36.4 28.5 35.9 28.7 34.9 28.2 33.2 27. 3 31.1 25.8 28.3 23.8
17 23 38.3 28.1 37.9 28.1 36.8 27.7 35.2 26.8 33.0 25.4 30.3 23.6
19 27 40.3 32.2 39.8 32.2 38.7 31.8 37.1 30.8 34.9 29.3 32.2 27.4
21 31 42.2 38.1 41.7 38.2 40.7 37.7 39.1 36.6 36.8 35.0 34.1 32.8
ISD 380KBY
OSA 380 2100
15 21 36.8 29.1 36.4 29.1 35.3 28.6 33.7 27.6 31.5 26.1 28.7 24.1
17 23 38.8 28.5 38.4 28.5 37. 3 28.0 35.7 27.1 33.5 25.8 30.7 23.9
19 27 40.8 32.6 40.3 32.7 39.3 32.2 37.6 31.2 35.4 29.7 32.6 2 7.7
21 31 42.8 38.6 42.3 38.7 41.2 38.2 39.6 37.1 37.4 35.5 34.6 32.2
ISD 465KB
OSA 465 2550
15 21 43.7 34.6 43.2 34.5 41.9 33.9 40.0 32.8 37.4 31.0 34.0 28.6
17 23 46.1 33.8 45.5 33.8 44.2 33.2 42.3 32.2 39.7 30.5 36.4 28.3
19 27 48.4 38.7 47. 8 38.7 46.5 38.2 44.6 37.0 42.0 35.3 38.7 32.9
21 31 50.7 45.8 50.1 45.9 48.9 45.3 46.9 44.0 44.3 42.0 41.0 39.4
ISD 570KB-P *
OSA 570 3100
15 21 55.5 43.9 54.8 43.8 53.2 43.1 50.8 41.6 47.4 39.3 43.2 36.3
17 23 58.5 42.9 5 7.8 42.9 56.2 42.2 53.7 40.8 50.4 38.8 46.2 36.0
19 27 61.4 49.1 60.7 49.2 59.1 48.5 56.6 47.0 53.3 44.8 49.1 41.7
21 31 64.4 58.2 63.6 58.3 62.0 57. 5 59.6 55.9 56.3 53.4 52.1 50.0
ISD 570KB
OSA 570 3100
15 21 55.1 43.5 54.4 43.5 52.8 42.7 50.4 41.3 47.0 39.0 42.9 36.0
17 23 58.0 42.5 5 7. 3 42.5 55.7 41.8 53.2 40.5 50.0 38.5 45.8 35.7
19 27 60.9 48.8 60.2 48.8 58.6 48.1 56.1 46.6 52.9 44.4 48.7 41.4
21 31 63.9 57.7 63.1 57. 8 61.6 57.0 59.1 55.4 55.8 53.0 51.6 49.6
ISD 670KB-P *
OSA 670 3600
15 21 64.3 50.8 64.4 50.7 61.6 49.8 58.7 48.1 54.9 45.5 50.0 42.0
17 23 67.7 49.6 66.8 49.6 65.0 48.8 62.1 47. 3 58.3 44.9 53.4 41.6
19 27 71.1 56.9 70.2 56.9 68.4 56.1 65.5 54.4 61.7 51.8 56.8 48.3
21 31 74.5 6 7. 3 73.6 67.4 71.8 66.5 68.9 64.6 65.1 61.8 60.2 5 7.8
ISD 670KB
OSA 670 3600
15 21 64.7 51.1 63.9 51.1 62.0 50.2 59.1 48.5 55.3 45.8 50.4 42.3
17 23 68.1 50.0 67. 3 50.0 65.4 49.2 62.6 47.6 58.7 45.2 53.8 41.9
19 27 71.6 5 7. 3 70.7 57. 3 68.9 56.5 65.9 54.8 62.1 52.2 5 7. 2 48.6
21 31 75.0 67.8 74. 2 6 7. 9 72.3 67.0 69.4 65.1 65.5 62.2 60.7 58.2
ISD 840KB
OSA 840 4500
15 21 84.9 58.6 83.3 57. 5 80.6 55.9 7 7. 9 54.8 75.4 53.7 71.7 52.6
17 23 89.4 63.0 87.0 61.8 80.6 60.6 81.3 59.4 78.9 58.2 74.8 5 7.6
19 27 93.6 70.0 90.8 68.6 87.7 67. 3 84.7 66.0 82.1 65.3 7 7. 9 64.7
21 31 98.2 76.2 95.1 74.8 91.6 74.1 88.9 72.6 86.3 71.9 82.7 71.2
ISD 950KB
OSA 950 5000
15 21 95.1 67.4 93.4 66.1 90.3 64.2 87. 3 63.0 84.4 61.7 80.3 60.5
17 23 100.2 72.4 97.4 71.0 90.3 69.7 91.1 68.3 88.3 66.9 83.8 66.2
19 27 104.8 80.4 101.7 78.9 98.2 7 7.4 94.9 75.9 92.0 75.1 8 7. 3 74.4
21 31 110.0 87.6 106.6 86.0 102.6 85.1 99.6 83.5 96.6 82.6 92.6 81.8
Note: Capacities are gross and do not include allowance for fan motor heat loss. Capacities
are for close coupled systems. Interconnecting pipework will reduce capacity.
An optional Outdoor Unit fan speed controller is available and is recommended where cooling
is required in below 20°C ambient conditions for long periods of time.
See over for Indoor Air Flow Correction factors >
* EC Plug fan version

Page 8
Ducted Split System Air Conditioners
Performance Data
PIPE LENGTH CAPACITY LOSS
On Cooling Cycle due to Pressure Drop
Note: Loss percentage is approximate only. No allowance made for vertical piping.
System
Performance Loss per additional 10m
beyond first 5m.
Suction
Pipe Size OD
Additional Pipe Length to allow per Bend
Long 90° Radius (2 x pipe dia.)
ISD 380 / OSA 380 2.1 % 22 0.50 m
ISD 465 / OSA 465 2.1 % 22 0.50 m
ISD 570 / OSA 570 1.5 % 28 0.61 m
0.7 % 35 0.76 m
ISD 670 / OSA 670 1.5 % 28 0.61 m
0.7 % 35 0.76 m
ISD 840 / OSA 840 1.0 % 35 0.76 m
0.8 % 41 0.80 m
ISD950 / OSA 950 1.0 % 35 0.76 m
0.8 % 41 0.80 m
INDOOR AIR FLOW CORRECTION FACTORS @ NOMINAL CONDITIONS
Indoor Air Flow (%)
-20 -10. Rated +10
Total Capacity 0.95 0.975 1.0 1.025
Sensible Capacity 0.89 0.950 1.0 1.050

Page 9
HEATING CAPACITY (KW)
G = Gross Heating Capacity kW, based on nominal air flow.
N = Net Heating Capacity kW allowing for average defrost.
= Nominal Capacity (kW).
Models
Indoor
Entering Air
Temp. °C Outdoor coil entering air temperature °C D.B.
Indoor Unit
Outdoor Unit D.B. -5 -3 -1 1 3 5 7 9
GN. GN. GN. GN. GN. GN. GN. GN.
ISD 380KB-P *
OSA 380
15 26.3 23.7 28.5 25.6 30.4 27.1 32.4 2 7. 9 34.4 29.4 36.9 35.1 39.3 39.3 41.2 41.2
20 25.8 23.2 27.9 25.1 29.8 26.6 31.8 2 7. 3 33.7 28.8 36.2 34.4 38.5 38.5 40.4 40.4
25 24.8 22.4 26.9 24.2 28.7 25.6 30.6 26.3 32.4 27.7 34.9 32.8 37.1 37.1 38.9 38.9
ISD 380KBY
OSA 380
15 26.5 23.8 28.7 25.8 30.6 27. 3 32.6 28.0 34.6 29.6 37. 2 35.3 39.5 39.5 41.5 41.5
20 26.0 23.4 28.1 25.3 30.0 26.7 32.0 2 7. 5 33.9 29.0 36.4 34.6 38.8 38.8 40.7 40.7
25 25.0 22.5 27.1 24.4 28.9 25.7 30.8 26.5 32.7 27. 9 35.1 33.0 37. 3 3 7. 3 38.2 38.2
ISD 465KB
OSA 465
15 30.0 27.0 32.5 29.3 34.8 30.9 37.0 31.8 39.2 33.6 42.2 40.1 44.9 44.9 47.1 47.1
20 29.5 26.5 31.9 28.7 34.1 30.3 36.3 31.2 38.5 32.9 41.3 39.3 44.0 44.0 46.2 46.2
25 28.4 25.5 30.7 2 7.6 32.8 29.2 34.9 30.0 37.1 31.7 39.8 37.4 42.3 42.3 44.5 44.5
ISD 570KB-P *
OSA 570
15 40.2 38.4 42.5 38.0 44.8 38.5 47.1 47.1 49.4 49.4 51.7 51.7 54.0 54.0 56.3 56.3
20 39.6 37.9 41.9 37. 5 44.2 44.2 46.5 46.5 48.8 48.8 51.1 51.1 53.4 53.4 55.7 55.7
25 38.4 37.0 40.6 36.5 42.9 40.6 45.2 45.2 47. 5 47. 5 49.8 49.8 52.1 52.1 54.4 54.4
ISD 570KB
OSA 570
15 41.5 39.6 43.8 39.2 46.2 39.7 48.6 48.6 50.9 50.9 53.3 53.3 55.7 55.7 58.0 58.0
20 40.8 39.1 43.2 38.7 45.6 45.6 47. 9 47. 9 50.3 50.3 52.7 52.7 55.0 55.0 5 7.4 5 7.4
25 39.5 38.1 41.9 37.7 44.3 41.9 46.6 46.6 49.0 49.0 51.4 51.4 53.7 53.7 56.1 56.1
ISD 670KB-P *
OSA 670
15 46.7 44.7 49.4 44.2 52.1 44.8 54.7 47. 5 5 7.4 5 7.4 60.1 60.1 62.7 62.7 65.4 65.4
20 46.0 44.1 48.7 43.6 51.4 44.2 54.0 54.0 56.7 56.7 59.4 59.4 62.0 62.0 64.7 64.7
25 44.6 43.0 47. 2 42.4 49.9 49.9 52.6 52.6 55.2 55.2 57. 9 57.9 60.6 60.6 63.2 63.2
ISD 670KB
OSA 670
15 47. 3 45.2 50.0 44.7 52.7 45.3 55.4 48.0 58.1 58.1 60.8 60.8 63.5 63.5 66.2 66.2
20 46.6 44.7 49.3 44.1 52.0 44.8 54.7 54.7 57.4 57.4 60.1 60.1 62.8 62.8 65.5 65.5
25 45.1 43.5 47.8 43.0 50.5 50.5 53.2 53.2 55.9 55.9 58.6 58.6 61.3 61.3 64.0 64.0
ISD 840KB
OSA 840
15 54.5 47.7 59.0 50.8 63.1 52.0 67. 2 53.1 71.2 53.8 76.5 59.4 81.4 63.5 85.5 85.5
20 53.5 46.8 5 7.9 49.8 61.9 51.0 65.8 52.0 69.8 52.7 75.0 54.8 79.8 62.2 83.8 83.8
25 51.5 45.1 55.7 47.9 59.6 49.1 63.4 50.1 6 7. 2 50.8 72.2 52.7 76.9 59.9 80.7 80.7
ISD 950KB
OSA 950
15 61.6 53.9 66.6 5 7. 3 71.2 58.8 75.8 59.9 80.4 60.7 86.4 67.1 91.9 71.7 96.5 96.5
20 60.4 52.8 65.3 56.2 69.8 57.6 74.3 58.7 78.8 59.5 84.7 61.8 90.1 70.3 94.6 94.6
25 58.1 50.8 62.9 54.1 6 7. 2 55.5 71.6 56.6 75.9 5 7. 3 81.6 59.5 86.8 67.7 91.1 91.1
Ducted Split System Air Conditioners
Performance Data
* EC Plug fan version

Page 10
AIR HANDLING
Airflows are for a dry coil. Reduce airflow by 10% in high moisture removal conditions. In a free blow or low resistance application, beware of
exceeding indoor fan motor’s full load amp limit.. Refer page 11 for Filter Pressure Drop.
Ducted Split System Air Conditioners
Performance Data
1400 1600 1800 2000 2200 2400
0
50
100
150
AIR FLOW (l/s)
AVAILABLE EXTERNAL PRESSURE (Pa)
Face Velocity 2.0 m/s
200
250
800 RPM (5.3V)
1000 RPM (6.7V)
1100 RPM (7.3V)
ISD 380KBY
2.5 m/s
ISD 380KBY
l/s - Pa
ISD 380KB-P (c/w Plug fans)
1500 2000 2500 3000 3500 4000
0
100
200
300
AIR FLOW (l/s)
AVAILABLE EXTERNAL PRESSURE (Pa)
2.5 m/s Face Velocity
400
500
700 RPM
800 RPM
5.5 kW MOTOR LIMIT
900 RPM
1.3kW
1.7kW
2.3kW
2.2kW
4.5kW
3.5kW
5.5kW
3.5kW
600 RPM
ISD 570KB
l/s - Pa l/s - W
----
ISD 465KB
l/s - Pa l/s - W
----
2000 2100 2200 2300 2400 2500
0
100
200
300
AIR FLOW (l/s)
AV
AILABLE EXTERNA
L PRESSURE (Pa)
INPUT (kW)
3.0
2.0
1.0
2.5
1.5
2.5 m/s Face Velocity
8.2V DC
400
9.2V DC
10.0V DC
8.2V DC
9.2V DC
10.0V DC
500
l/s - Pa l/s - W
----
ISD 570KB-P (c/w Plug fans)
l/s - Pa
1500 2000 2500 3000 3500
0
100
200
300
AIR FLOW (l/s)
AV
AILABLE EXTERNAL
PRESSURE (Pa)
2.5 m/s Face Velocity
7V
400
9V
10V
4000
8V
500
3.3kW
3.7kW
1.1kW
2.4kW
2.8kW
1.2kW
Model : ISD 465KB ISD 570KB
Std Motor Size kW 35.5
Max. D.O.L. Motor kW 37. 5
Max. Fan Speed RPM 850 1000
Std Pulley Range RPM 600–800 600–800
Factory Setting RPM 700 700
1800 2000 2200 2400 2600 2800
0
50
100
150
AIR FLOW (l/s)
AV
AILABLE EXTERNA
L PRESSURE (Pa)
2.3 m/s Face Velocity
200
250
600 RPM
800 RPM
700 RPM
3000
850 RPM
3 kW MOTOR LIMIT
750 RPM