Lennox @DNOVA THS, Инструкция по установке, эксплуатации и обслуживанию, Страница: 16 / 30

14 IOM / @DNOVA_THS-0508

Following wiring diagram instructions make electrical connections between THI and THC units
230/1/50 power supply and power supply and auxiliary circuit cables.

Connect user interface to microprocessor J10 connector (you can find it in THS wiring diagram)
using a telephone cable.

Turn THI unit QS main switch ON.

Turn THC unit Q01 automatic switch ON.
THI Unit THC Unit

Charge the circuit with R407C refrigerant.

Close the panels with the matching screws.
Start up
When you give power to microprocessor, you can see the first mask of main menu where you can see the
following information:

Indoor air T (Tint);

Supply air T (Tsup);

External air T (Text) [only Free-Cooling version];

Compressors and fans state;

Counter for evaporator fans and compressors.
In next mask (m_on_off), that you can see pushing Down , it is possibile to turn the unit on or off
pushing Enter , Down and then again Enter . It is also shown if the unit is a master or a
slave unit (this is a fundamental information for LAN operations) and configuration of local net address
(Unit 1, Unit 2 o Stand Alone).
In THI unit there is a RED coloured LED to show that alarm is present.
Usage

always consult the USER manual and control system manual provided with the unit when
undertaking maintenance and/or advanced set-ups.

N.B.: In THI unit there is not condensing pressure gouge so the value is not reliable.
m_on_off
╔════════════════════╗
║UNIT ON: ║
║ No ║
║Master ║
║STAND ALONE UNIT ║
╚════════════════════╝
main
╔════════════════════╗
║Comp OFF Tint
00.0°C
║
║Evap OFF Tsup
00.0°C
║
║Cond OFF Tex
t 00.0°C
║
║Ev 00000 Comp 00000h║
╚════════════════════╝