TemperZone ISD 840K Installation & Maintenance

ISD 840K, 950K
Ducted Split System

Indoor Units

Fig.1 Dimensions (mm)
PROJECTION
Not to Scale
75
FILTER ACCESS
EITHER SIDE
W
470
305
Z
830
ACCESS PANEL
A
430
MOUNTING CENTRES
2220 OA
NOTE
The manufacturer reserves the right to
change specifications at any time without
notice or obligation. Certified dimensions
available on request.
Fig. 2
200 mm
APPROX.
'U' TRAP
2005
ELECTRICAL
BOX
X
REFRIGERANT
CONNECTIONS
Y
565
VERTICAL
DISCHARGE
MODEL
470
REFRIG.
CONN'S
535
105
1360
VENT PIPE
100 mm
FOR LONG
APPROX.
CONDENSATE
DRAIN RUNS
100 mm
MINIMUM
OPEN
DRAIN
CORNER LOADS (kg)
MODEL
W X Y Z
ISD 840K 70 116 116 70
ISD 950K 66 137 125 55
MODEL
A B
ISD 840K 1070 955
ISD 950K 1280 1165
ELECTRICAL
ACCESS
PANEL
60
150
DRAIN 28 OD
1320 OA
Net
Weight
ISD 840K 372 kg
ISD 950K 383 kg

Condensate Drain

MINIMUM
SLOPE
20 mm PER m
(1 IN 50)
Installation &
Maintenance
GENERAL
These ISD indoor units are designed to be
coupled with their respective OSA outdoor
units. Units must be installed in accordance
with all national and local safety codes.
Combinations
One ISD 840K with one OSA 840RKTB
One ISD 950K with one OSA 950RKTB
Option
TZT-701 or SAT-2 Thermostat
Filters
INSTALLATION
Unpacking
The unit's supply air spigot has been
secured inside the unit for ease of shipping.
Remove the spigot and secure it in place
using the existing screws.
Positioning & Mounting
Provide sufficient clearance to the access
panels.
Mount on a suitable level platform using
vibration isolators. Access to fixing centres
beneath the return air spigot can be made
via the removeable bungs in the spigot's
base.
B
Condensate Drain
The unit has an internal sloping condensate
drain tray. The trap should have a vertical
75
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, fit 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 overflow 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.
REFRIGERATION PIPING
Pipe Connection Sizes & Type
Liquid : 16 mm OD (
Suction : 35 mm OD (
The ISD is shipped from the factory with
a pressurised holding charge of nitrogen.
Immediately before removing any brazed
/ ") sweat
5
8
/ ") sweat
11
8