TemperZone ISF 300K Installation & Maintenance

ISF 300K, 450K
IT-Data Centre
Computer Room Indoor Units
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 ISF 300K with three OSA 110RKTH
One ISF 300K with one OSA 330RKTV
One ISF 450K with three OSA 160RKTHG
One ISF 450K with one OSA 460RKTB
Optional
1. Remote return air sensor c/w 5m lead
and no case.
Fig.1 Dimensions (mm)
PROJECTION
Not to Scale
Net Weight:
Electrical and Control
ISF 300K 200 kg
Connections
ISF 450K 250 kg
940
mtg ctrs
2. Remote return air sensor c/w case.
3. Remote return air temperature sensor
lead; 1.5, 6, 12 or 25 m.
4. 20 m extended interface lead
(electrical box-to-plaque).
5. ISF indoor unit–to–OSA outdoor
unit interconnecting power lead;
12.5 m or 25 m; 7 core.
INSTALLATION
Positioning & Mounting
The unit is dsigned for hot isle/cold isle type
computer room applications.
Provide sufficient clearance at the rear to
access the filters.
ISF 300K = 600
ISF 450K = 800
598.5
25
mtg ctrs
Installation &
Maintenance
Condensate Drain
The unit has three internal condensate drain
trays which are connected by drain tubes
to the lower tray, then into a sump. Water is
then removed, via a condensate lift-pump,
out the top of the unit.
It is essential that the drainage system
for the evaporator is checked by pouring
water in the top drain tray and seeing that it
discharges at the end of the drain and does
not overflow the drain trays.
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 :
Suction :
The ISF is shipped from the factory with
a pressurised holding charge of nitrogen.
Immediately before removing any brazed
Three Systems:
pipe connection's seal, reduce holding
Middle Coil Connection
charge to atmospheric pressure.
Top Coil Connection
Bottom Coil Connection Warning: failure to do so may cause injury.
Condensate Drain 9.5 OD
Refer to the Outdoor Unit 'Installation &
Maintenance' pamphlet for evacuation
Liquid 10mm OD
Gas 19mm OD
procedure and piping requirements.
ELECTRICAL WIRING
100 The electrical supply required (via the
Outdoor Unit) is specified on the Outdoor
Unit's wiring diagram.
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 ISF is fitted with an EC motor which
will vary its speed according to the signal
supplied by your chosen room temperature
controller.
INSTALLATION
The TZT-100 Controller PCB is supplied
pre-installed in the ISD unit's electrical box.
Optional Screen Door
1. Isolate the ISF unit from power supply,
then remove electrical box cover.
2. Remove the TZT-100 Wall Plaque box
supplied loose inside the electrical box.
3. Follow the instructions supplied in the
TZT-100 Installation document supplied.
Optional Casters
may be fitted
10 mm OD ( 3 / ") sweat
8
19 mm OD ( / ") sweat
3
4