CIAT AQUACIAT POWER LD 1100R, Instruction Manual

Page: 51 / 84

11.14 - Fan stages
AQUACIAT POWER™ LD
602R-3500R
Circuit Stage 1 Stage 2 Stage 3 Stage 4
Inverter on
High seasonal efficiency
All-season operation option
LD 602R A EV11 - - - All
ILD 602R-700R B EV21 EV21+EV22 - - All
LD 650R-750R-900R-1100R A EV11 EV11+EV12 - - All
ILD 800R-900R-1000R B EV21 EV21+EV22 - - All
LD 1200R-1350R A EV11 EV11+EV12 - - All
ILD 1150R-1250R B EV31 EV31+EV21 EV31+EV21+EV32 - All
LD 1400R-1600R
A EV11 EV11+EV12 EV11+EV12+EV22 - All
B EV31 EV31+EV32 EV31+EV32+EV21 - All
ILD 1400R-1500R
A EV11 EV11+EV12 - - All
B EV21 EV21+EV31 EV21+EV31+EV22 EV21+EV31+EV22+EV32 All
LD 1750R-1800R A EV21 EV21+EV11 EV21+EV11+EV22 - All
ILD 1600R-1750R
B EV31 EV31+EV41 EV31+EV41+EV32 EV31+EV41+EV32+EV42 All
LD 2000R A EV11 EV11+EV21 EV11+EV21+EV12 EV11+EV21+EV12+EV22 All
ILD 2000R B EV31 EV31+EV41 EV31+EV41+EV32 EV31+EV41+EV32+EV42 All
LD 2200R
A - - - - All
B - - - - All
LD 2400R-2650R
A - - - - All
B - - - - All
LD 2800R-2950R
A - - - - All
B - - - - All
LD 3200R-3500R
A - - - - All
B - - - - All
11.15 - Variable-speed fans (LD/ILD units)
Variable-speed fans concern the LD and ILD units equipped with
the High seasonal efficiency or All-season operation option.
The variable speed drives on the fans are used to optimise the
efficiency of the unit depending on the conditions of use
(air temperature, circuit capacity) and hence improve the seasonal
efficiency (SEER and SCOP).
All fans in the same refrigerant circuit are actuated and controlled
by a single variable speed drive.
Therefore, they operate together at the same rotation speed.
All variable-speed fans are controlled by the unit controller.
For an EC fan option, each variable-speed fan is equipped with
its own variable drive.
The speed is controlled independently for each refrigerant circuit.
This rotation speed at full-load or partial load for each circuit is
controlled by an algorithm that continuously optimises the
condensing (cooling mode) or evaporation (heating mode)
temperature, to obtain the best unit energy efficiency
(EER and COP) whatever the operating conditions.
Fan motor electrical protection
The motors of a same circuit are electrically protected by the
variable frequency drive in case of short-circuit, locked rotor or
general overload.
Each variable frequency drive follows a variable current
characteristic, based on the frequency from 5 to 50 Hz and the
number of fans controlled.
In case of fan failure (e.g. motor disconnected) the variable
frequency drive will detect this problem and an alert will be sent
to the user interface.
Refer to the unit’s control manual for the list of alarms.
11.16 - Connect Touch control
The interface of the “Smart View Control” has the following
characteristics:
- It has a 4.3-inch colour screen.
- It is intuitive and user-friendly. Clear and concise information
is presented in the local language (8 languages available).
- The complete menu can be adapted to the various users
(end customer, maintenance personnel, manufacturer
engineers).
- Unit setting and use are secure. Password protection prevents
unauthorised access to advanced parameters.
- No password is required to access the most important operating
parameters.
11 - MAIN COMPONENTS OF THE UNIT AND OPERATING CHARACTERISTICS
EN-51
AQUACIAT
POWER
™ LD/ILD