RHOSS TCAEY-THAEY 115 P1 Instrucciones De Uso página 30

The multipliers refer to the following conditions: condenser inlet air
temperature 35°C; chilled water outlet temperature 7°C; temperature
differential at evaporator 5°C.
For different operating conditions, the same coefficients can be used as
their variations are negligible.
Table "H"
% glycol in
10 %
weight
Freezing
-5
temperature °C
fc QF
0,991
fc P
0,996
fc ∆pw
1,053
fc G
1,008
fc QF = Cooling capacity correction factor.
fc P= Correction factor for the absorbed electrical current.
fc ∆pw = Correction factor of the pressure drops in the evaporator
fc G = Correction factor of the glycol water flow to the evaporator
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
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). Protect the wires from any foam.
IMPORTANT!
For electrical connections to 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 opening the front panel of the unit, feed the supply cables through
the appropriate cable clamps in the external panelling and then through
the cable clamps at the base of the electric board.
The electrical power supplied by the single-phase or three-phase line,
must be taken 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.
115
mm²
117
mm²
122
mm²
124
mm²
127
mm²
130
mm²
133
mm²
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.
15 % 20 % 25 %
-7 -10 -13
0,987 0,982 0,978
0,995 0,993 0,991
1,105 1,184 1,237
1,028 1,051 1,074
RHOSS
S.p.a. from
4 4 1,5
4 4 1,5
6 6 1,5
6 6 1,5
10 10 1,5
10 10 1,5
10 10 1,5
II.7.1.1 Remote management using connections set
up by the installer
The connections 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.
30 %
SEI - Summer/winter selector.
LBG - General lockout light.
-16
• Remote ON/OFF enablement (SCR)
0,974
0,989
1,316
1,100
Remove the 6.04-GND 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).
ATTENTION
• Remote summer/winter enablement on THAEY
Connect the wires coming from the remote summer/winter selector on
the 6.02-GND terminal present on the electronic board.
At this point, alter parameter H27 from 0 to 1.
ATTENTION
• LBG remote control
To remotely control the two signals, connect the two lamps according to
the instructions provided 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 (KTR1 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
30
SECTION II: INSTALLATION AND MAINTENANCE
IMPORTANT!
When the unit is switched OFF using the remote
control selector, the letters Scr appear on the on
board control panel display.
Open contact:
Closed contact:
Open contact:
Closed contact:
IMPORTANT!
Machine commissioning or the first start up (where
provided for) must be carried out by skilled
personnel from workshops authorised by
S.p.A., qualified to work on this type of product.
IMPORTANT!
The use and maintenance manuals for the pumps,
fans and safety valves are enclosed with this
manual and should be read throughout.
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.
DANGER!
The units are equipped with safety valves
positioned inside the technical compartment. When
they cut in, they cause a loud noise and violent
refrigerant and oil leaks. Do not approach the safety
valve cut-in pressure.
the unit is OFF.
the unit is ON.
heating cycle.
cooling cycle.
RHOSS