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Installation manual UTY-XDZX
This product is intended for controlling Fujitsu General Limited split-type outdoor units for use in conjunction with heat
exchangers of AHU from other manufacturers.
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Conformity of regulations and laws must be conformed on the whole system (including outdoor unit) by your side.
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Fujitsu General Limited does NOT take any responsibility on the system design at field or the failure caused by the system
design at the field including our outdoor unit.
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Please check our technical manual and this installation manual when designing the local system.
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R32 is flammable refrigerant. Please make sure to read the original IEC 60335 and IEC 60335 2-40 (Edition 6.0). The fire
safety warranty for the whole system (including outdoor unit) must be done by your side when using R32 refrigerant.
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When using R32 refrigerant please check the following items.
Requirements for charge limits and ventilation (IEC 60335 2-40 Annex GG) shall be satisfied.
Requirements for marking (e.g. flame symbol) and information in the manual shall be satisfied.
Requirements for constructions (e.g. location of the refrigerant detection sensor) shall be satisfied.
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Please make sure to check technical manual, this installation manual and outdoor unit installation manual for correct use
and installation. Also, for safety, make sure to read the installation manual for the outdoor unit, especially when using R32
refrigerant.
Contents
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1. Safety precautions
2. About this product
2.1 Precaution for using this product
2.2 Package Content
2.3 Field supplied material (This is mandatory.)
3. Product selection
3.1 Product lineup
4. Installation work
4.1 Selecting an installation location
4.2 Installing the unit
5. Installation of temperature sensor
5.1 Placement of temperature sensor
6. Electrical wiring
6.1 Electrical requirement
6.2 Connection to outdoor unit
6.3 Connection of wiring
6.3.1 External inputs
6.3.2 External outputs
6.4 Circuit diagram
7. LED indicators
8. Switch operations
9. Startup and Test Run
10. Check List (Example)
11. Error codes
12. Specification
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1. Safety precautions
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Be sure to read this Manual thoroughly before installation.
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The warnings and precautions indicated in this Manual contain important information pertaining to your safety. Be sure to
observe them.
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Hand this Manual, to the customer. Request the customer to keep them on hand for future use, such as for relocation or
repairing the unit.
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For installation of the air handling unit (heat exchanger), refer to the installation manual for the air handling unit.
WARNING
This mark indicates procedures which, if improperly performed, might lead to the death or
serious injury of the user.
Request your dealer or a professional installer to install this product in accordance with this Installation Manual. An
improperly installed unit can cause serious accidents such as water leakage, electric shock, or fire. If this product is
installed in disregard of the instructions in the Installation Manual, it will void the manufacturer’s warranty.
Do not turn ON the power until all work has been completed. Turning ON the power before the work is completed can
cause serious accidents such as electric shock or fire. Do not touch this product after turning ON the power.
When service, maintenance and cleaning around the unit, make sure to do turn off the power supply.
If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant comes in contact with a flame, it
produces a toxic gas.
Installation work must be performed in accordance with national wiring standards by authorized personnel only. Please do
not work with wet hands.
Except for EMERGENCY, never turn off main breaker of this products during operation. It will cause compressor failure as
well as water leakage. First, stop this product by operating the any control unit. Then cut the breaker.
