Chiller IT 500 Series Istruzioni per il montaggio
IT 500 Appliance Series
Installation Instructions
Operating Instructions
Maintenance Instructions
Read this manual carefully before installing and operating the appliance.
Chiller Oy assumes no legal responsibility for any damages resulting from
installation or maintenance.
IT500-IOM27102002FIN
2
Contents
1. Transport and storage
2. Warranty terms
3. Safety
4. Technical specification and data plate of the appliance
5. Dimension drawings
6. Operation of the appliance
7. Setting values of the sensors and safety devices
8. Installation of the appliance
9. Connecting the appliance to the power supply
10. Activating the appliance
11. Connection data of the electrical components
12. Maintenance of the appliance
13. Troubleshooting table
14. Manufacturer’s warranty
15. List of spare parts
16. Replacing the fans
3
Important
This product has been designed not to cause any risks for the maintenance personnel installing the
appliance nor to the environment. It is important to observe the hereby provided instructions during
installation and maintenance works.
All maintenance procedures that require maintenance operations inside the appliance are to be
performed by the qualified personnel. The appliance contains pressurised cooling gases, hot
surfaces, moving components (e.g. fans) and various electrical components.
Always disconnect the power supply before attempting any maintenance operations.
Make sure the appliance has been provided with and connected to power supply specified on
the data plate.
Chiller Oy assumes no legal responsibility for any damages resulting from installation or
maintenance.
1. Transport and Storage
The appliance is shipped on a pallet. Use auxiliary machinery for transportation. Do not remove the
protective packaging before you begin with the installation procedures. Make sure the delivery
corresponds to your order. Always store the appliance in a dry and preferably warm room.
Make sure the delivery contains all accessories indicated in the documents. Any shipping damages
on the appliance are to be reported to the shipping company within 24 hours from the delivery of
the appliance. Shipping damages must always be recorded on the freight bill. Chiller Oy guarantees
the dispatch of a faultless appliance from the plant.
2. Warranty Terms
Chiller Oy warranties the appliance for 12 months from the date of commissioning or for 18 months
from the date of delivery, whichever occurs first. The warranty is valid provided that no
modifications have been performed on the appliance without the manufacturer’s written consent.
Warranty treatment presupposes advising the manufacturer of the full type and full serial number of
the appliance.
3. Safety
The cooling appliance produced by Chiller Oy is designed and manufactured in compliance with the
applicable legislation. Please read these instructions carefully before taking any measures. Always
employ qualified installation personnel and observe applicable local laws. Should the laws conflict
with the connections made and instructions given by Chiller Oy, observe the established law but
provide your measures with an approval from Chiller Oy.
4
4. Technical Specifications of the Appliance
Operation / Appliance IT 540 IT 560
Total cooling capacity kW 4.5 6
Sensible cooling capacity kW 3 5
Power consumption kW 1.6 1.9
Power supply V-Ph-Hz 230-1-50 400-3-50
Evaporator air flow m3/h 1,100 1,100
Free cooling capacity + 10°C kW 4.5 4.5
Air flow through free cooling m3/h 800 800
Infiltration rate of intake air EU4 EU4
Cooling agent (standard supply) R407C R407C
Length L mm 1,620 1,620
Width B mm 800 800
Height H mm 450 450
Grille width BC 900 900
Grille height HC 550 550
Installation hole dimensions B*H mm 820*470 820*470
Weight of the appliance kg 147 153
Cooling capacity by indoor conditions 27°C, 50%; outside temperature 30°C.
Data plate information:
-Model and serial number
-Power supply
-Power consumption
-Setting values of the pressure switches
-Type and volume of cooling agent used for the appliance.
The data plate is attached to the cover of the electrical board.
5
5. Dimension Drawings
A = ELECTRICAL BOARD F = CONDENSER FAN
B = SERVICE DOOR FOR THE FAN G = SERVICE DOOR FOR THE CONDENSER
C = SERVICE DOOR FOR THE COMPRESSOR H = EXHAUST AIR GRILLE
D = FREE COOLING WITH INTAKE AIR I = FREE COOLING IN
E = EXHAUST
6
6. Operation of the Appliance
Wiring diagram of the IT500 appliance series.
The appliance is activated by the S1 switch in the electrical board. The TC regulator adjusts the
indoor temperature in 2 stages according to the indications of the room sensor TE1. The room
sensor TE1 is placed on the insulation layer on the end wall of the appliance.
1. Stage
When the indoor temperature rises above the setting value of the room sensor TE1, the intake air
fan P1 is activated to provide free cooling intake air into the room, and the damper motor M opens
the exhaust and intake air dampers that are positioned on the same axle. Outside temperature
exceeding the setting value of the sensor TE3, the fan P1 is not allowed to operate. When the
temperature in the intake air duct falls below the setting value of sensor TE2, the TC regulator
controls the damper motor so as to prevent declining under the setting value of sensor TE2.
The intake air fan is placed under the maintenance cover between the electrical board and the
damper motor. The damper motor M is placed uncovered on the same side as the electrical board.
The sensor TE2 is placed in the exhaust duct and the sensor TE3 in the intake duct close to the
intake grille.
2. Stage
Continuing rise in the indoor temperature activates compressor circulation. The compressor K1 and
the condenser fan P3 are activated and accompanied by the air circulation fan P2 of the evaporator
coil.
7
Breakdown:
-Power failure
-The thermal relay of the compressor trips (to be acknowledged)
-The high pressure switch of the compressor trips (to be acknowledged)
-The low pressure switch of the compressor trips (to be acknowledged).
When a breakdown occurs, the relay D1 deactivates the compressor. When the indoor temperature
exceeds its setting value, the free cooling fan P1 is activated and the damper controlling the free
cooling is opened.
Alarm:
When a breakdown occurs, the relay D2 gives an alarm (contact data). When the breakdown is
cleared, the alarm stays on until it is switched off by the S2 switch.
Electrical board of the appliance
Sensor TE1 Sensor TE2
8
Sensor TE3
Fan P1 Fan P2
Fan P3 Motorized damper M
9
High pressure switch - Compressor – Low pressure switch
Grille
10
7. Setting Values of the Sensors and Safety Devices
Appliance Setting value °C
TE1 + 25
TE2 + 12
TE3 + 18
Appliance Setting value bar
LPS 2…3.5
HPS 17.5…24
LPS = low pressure switch
HPS = high pressure switch
Indice
