TemperZone ISD 840KB-P Wartungs- und Serviceanleitung

ISD 840/950 KB-P (c/w Plug fan & EEV)

Ducted Split System

Indoor Units 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.

There are two versions available:

1. Horizontal discharge (H)

2. Vertical discharge (V)

Combinations

One ISD 840KBH-P with one OSA 840RKTBG

One ISD 950KBV-P with one OSA 950RKTBG

Option

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 sufcient clearance to the access

panels.

Mount on a suitable level platform using

vibration isolators. Access to xing centres

beneath the return air spigot can be made

via the removable bungs in the spigot's

base.

Condensate Drain

The unit has an internal sloping condensate

drain tray. The trap should have a vertical

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, 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.

Fig.1 Dimensions (mm)

Not to Scale

Net

Weight

ISD 840KB-P 402 kg

ISD 950KB-P 453 kg

Fig. 2

NOTE

The manufacturer reserves the right to

change specications at any time without

notice or obligation. Certied dimensions

available on request.

OPEN

DRAIN

MINIMUM

SLOPE

20 mm PER m

(1 IN 50)

100 mm

MINIMUM

200 mm

APPROX.

'U' TRAP

100 mm

APPROX.

VENT PIPE

FOR LONG

CONDENSATE

DRAIN RUNS

Condensate Drain

PROJECTION

2007

2220 OA

DRAIN 28 OD

150

1260 OA

REFRIG.

CONN’S

1000 MIN. CLEARANCE

1360

MOUNTING CENTRES

105

430

500 MIN. CLEARANCE

REFRIGERANT

CONNECTIONS

ELECTRICAL

BOX

ACCESS PANEL

FILTER ACCESS

EITHER SIDE

ELECTRICAL

ACCESS

PANEL

2005

470

110

305 1610

712

357

MODEL A B

ISD 840K 1070 960

ISD 950K 1280 1165

CORNER LOADS (kg)

W X Y Z

19 31 184 168

58 84 156 155

MODEL

ISD 840KB-P

ISD 950KB-P

REFRIGERATION PIPING

Pipe Connection Sizes & Type

Liquid : 16 mm OD (5/8") sweat

Suction : 35 mm OD (11/8") 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).

To make the indoor fan switch off during

de-ice cycle, refer to the Outdoor Unit wiring

diagram for the appropriate changes.

INDOOR FAN SPEED

The fan speed is continuously variable

via the 0-10V DC control signal applied

between terminals 'FAN GND' and '0–10V'.

Once the maximum design air ow has been

set (refer Commissioning), the fan speed

can be controlled as follows:

1. ON/OFF

a.) Connect 24V a.c. control signal to

either 'LOW 24', 'MED 24V' or 'HIGH

24V', and 'COM 24V',

b) Wire a N/O control relay contact (or

switch) between 'FAN 10V' and '0–10V'.

2. Variable Speed

Apply an external variable 0–10V DC

control voltage to '0–10V' terminal.

Connect 0V reference to 'FAN GND'.

COMMISSIONING

Indoor Unit

1. Check that the thermostat is

correctly wired and set at the desired

temperature.

2. Link terminals 'FAN 10V' to '0–10V'.

Adjust the 'POT' to deliver your

maximum design air ow. Remove link

'FAN 10V' to '0–10V' when fan speed

has been set.

2. Check that any air lter (if tted) is

clean.

3. Check that the fan runs freely without

vibration.

4. Check the airow at each air outlet

(diffuser) and adjust if necessary.

5. Check condensate drain for free

drainage.

6. Run the unit in cooling mode and

heating mode.

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 motor

mountings.

4. Check that fan motor is free running.

5. Check tightness of electrical connections.

6. Check air supply at diffuser outlets.

WARNING

This unit is designed for use ONLY with the

refrigerant HFC-410A (R410A). The use

of other refrigerants is NOT authorised or

approved by the manufacturer and may

cause operational problems such as poor

performance and efciency, loss of capacity,

degradation of materials and refrigerant

leaks.

The use of ammable or explosive

materials as a refrigerant creates the

additional risks of re and explosion

which may result in property damage,

personal injury or death.

NOTE

The manufacturer reserves the right to

change specications at any time without

notice or obligation. Certied dimensions

available on request.

291-044-687-ENG

05/03/19

GND

10V

POT

IFM1

FRC

Voltage In V

IFM Amps (max)

FRC Fan Relay Coil

IFM Indoor Fan Motor

Model ISD

FR Fan Relay

POT Potentiometer (max speed)

24V

BLACK

WHITE

RED

IFM2

IFM3

950-P

11.4

380/415

Visit: www.temperzone.biz for client wiring diagrams.

Power In

Note: For external '0-10v' control, feed

0-10V control signal to terminal '0-10V'

and 'FAN GND'

Set POT for maximum fan revs required

when either FR is closed or 10V is applied

to 0-10V terminal.

FAN GND

COM

MED

LOW

HIGH

0-10V

FAN E1

COMP1

HEAT

COMP1

24V

IFM1

11 14

ISD 950KBV-P SP EEV

WIRING SCHEMATIC

AMOD FROM 291-035-925-ENG

05/03/19

IFM2

GND

10V

24V

IFM2

11 14

IFM1 11

IFM2 14

10/20 Pamphlet No. 4141 © temperzone limited 2020

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