RHOSS MICROSYSTEM TCCE 114 H Series, Instructions For Use Manual

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SECTION II: INSTALLATION AND MAINTENANCE
32
IMPORTANT!
Mixing the water with glycol modifies the
performance of the unit.
The table below gives the proportions of ethylene glycol which are
required to give frost protection in a range of conditions Maximum
ethylene glycol content 30%.
Projected air temperature in °C 2 0 -3 -6 -10
% glycol in weight 10 15 20 25 30
Freezing temperature in °C -5 -7 -10 -13 -16
To set the antifreeze set point, see Par. I.8.7 .
II.7 ELECTRICAL CONNECTIONS
DANGER!
Always install a general automatic switch in a
protected area near the appliance with a
characteristic delayed curve, sufficient capacity and
breaking power. There should be a minimum
distance of 3 mm between the contacts.
Earth connection is compulsory by law and
safeguards the user while the machine is in use.
DANGER!
Electrical connection of the unit must be carried out
by personnel skilled in the matter and in
compliance with the regulations in effect in the
country where the unit is installed. Non-conforming
electrical connection relieves
RHOSS S.p.a. from
all responsibility for damage to persons and
property.
In making the electrical connections to the board,
cables must be routed so that they do not touch the
hot parts of the machine (compressor, flow pipe
and liquid line). Use the slots provided in the panel
in the compressor compartment to anchor cable
ties and protect the cables from possible burrs.
IMPORTANT!
For electrical connections of the unit and the
accessories, follow the wiring diagrams which are
supplied with them.
The safety door interlock automatically prevents electric power being
fed to the unit if the cover panel over the electrical panel is opened.
After removing the right-hand lower side panel of the unit, run the power
supply cables through the cable clamps provided on the outside of the
right-hand part of the bodywork, and through the cable clamps at the
base of the electrical panel, being careful to avoid the hot parts inside
the machine.
Electrical connections must be made in compliance with the regulations
in force and following the wiring diagrams supplied with the unit.
The power supply, provided by the three-phase line and the neutral line,
must be carried to the main isolator switch.
The supply cable must be of the flexible type, with PVC sheathing of no
lighter than H05RN-F: for the section, refer to the table below or the
wiring diagram.
Model 114 117 121 126
Section L1-L2-L3 mm² 4 4 6 6
PE section mm² 4 4 6 6
The earth conductor must be longer than the other conductors in order
to ensure that in the event of the cable clamping device becoming
slack, it will be the last to come under strain.
IMPORTANT!
If a pump is fitted in a unit without a storage tank, it
must be controlled by a contactor connected to
terminals J6 on the electronic board inside the
electrical panel.
The maximum load which can be applied is 230V/5A
(AC1).
II.7.1.1 Remote management using connections set
up by the installer
The connection between board and switch or remote light must be
made with screened cable consisting of 2 twisted 0,5 mm2 wires and
the screening. The screening must be connected to the earth screw on
the panel (on one side only). The maximum permitted distance is 30 m.
SCR - Remote ON/OFF control selector.
SEI - Summer/winter selector.
LBG - General lockout light.
•
Remote ON/OFF enablement (SCR)
IMPORTANT!
When the unit is switched OFF using the remote
control selector, the letters Scr appear on the on
board control panel display.
Remove the ID8 terminal bridge on the electronic board and connect
the wires coming from the remote control ON/OFF selector (selector to
be installed by the installer).
Open contact: the unit is OFF.
ATTENTION
Closed contact: the unit is ON.
•
Remote summer/winter enablement on THCE
Connect the wires coming from the remote summer/winter selector on
the
ID7 terminal present on the electronic board.
At this point, alter parameter SUr from n to y (see par. I.9 ).
Open contact: heating cycle.
ATTENTION
Closed contact: cooling cycle.
•
LBG remote control
In the event of remote controlled signals, connect the lamp following the
indications in the wiring diagram supplied with the machine (max 24
Vac).
II.7.1.2 Remote management using accessories
supplied separately
It is possible to remotely control the entire machine by linking a second
keyboard to the one built into the machine (KTR accessory).
To select the remote control system, consult paragraph
II.2 . The use
and installation of the remote control systems are described in the
Instruction Sheets provided with the same.
II.8 START-UP INSTRUCTIONS
IMPORTANT!
Machine commissioning or the first start up (where
provided for) must be carried out by skilled
personnel from workshops authorised by
RHOSS
S.p.A., qualified to work on this type of product.
DANGER!
Before starting up, make sure that the installation
and electrical connections conform with the
instructions in the wiring diagram. Also make sure
that there are no unauthorised persons in the
vicinity of the machine during the above operations.
IMPORTANT!
The use and maintenance manual for the safety
valve, fans and pumps is enclosed with this manual
and must be read in all its parts.
DANGER!
At any time when the gas charge is being topped
up, do NOT approach the preset blowoff levels of
the bleed valves. When they are set off, there is a
loud and violent outburst of gas and oil. The bleed
valve drain is not channelled!
The liquid receivers are equipped with bleed valves calibrated at 32 bar.