Installation
‘19 • HM-T-340
Indoor unit installation
• AUX outputs
External output is available on the port 15 to 17 on X4 terminal
on AA2 board on RC-HY20-W. The relay output can have a
max load of 2A at resistive load.
4
1
5
1
6
1
7
1
Externt
External
RC-HY20-W
AA2-X4
LEK
L N
1
1
0
2
3
4
PE
AA2-X4
RC-HY20-W
Following functions are available. Select the function in menu
5.4.
Indication of buzzer alarm
When an alarm occurs, the circuit becomes closed between
the port 15 and 16. During normal operation, the port 15 and
17 is closed.
Cooling mode indication / Active cooling mode (4-pipe
cooling)
When the system turns into cooling mode, the circuit
becomes closed between the port 15 and 16. By using this
signal, it is possible to switch 3-way valve for 4-pipe cooling
or to assemble a display circuit indicating cooling mode. For
details of connecting the 3-way valve, refer to page 98.
External pump control (GP10)
External pump (GP10) is used in case additional heater is
placed after 3-way valve that switches heating/hot water
(refer to page 286 for diagram).
Connect the circulation pump as shown below using the port
15 and 16 on X4 terminal.
4
1
5
1
6
1
7
1
Externt
L
L
N
N
PE
PE
External
RC-HY20-W
AA2-X4
LEK
L N
1
1
0
2
3
4
PE
AA2-X4
RC-HY20-W
Hot water circulation pump control (GP11)
In case the distance between hot water tap and hot water
storage tank is far, the hot water supply line temperature is
likely to drop and it may take time to supply hot water from
the tap. In that case, hot water circulation pump (GP11) is
applied to maintain hot water supply line temperature warm
(refer to page 86 for diagram).
Choose two external input circuits and connect potential-free
switches, and set “SG Ready A” and “SG Ready B” in menu
5.4. The system works diff erently according to the combination
of the circuit open/closed.
Blocking (A: Closed, B: Open)
“SG Ready” is active. Compressor operation and additional
heat is prohibited.
Normal mode (A: Open, B: Open)
“SG Ready” is not active. No eff ect on the system.
Low price mode (A: Open, B: Closed)
"SG Ready" is active. The system operates to provide higher
capacity than normal mode by using lower tariff electricity.
You can select the operation mode (heating/hot water/
cooling) aff ected by this function in menu 4.1.5.
Overcapacity mode (A: Closed, B: Closed)
“SG Ready” is active. The system supplies higher capacity
than Low price mode since the electricity price is supposed
to be very low in this mode. You can select the operation
mode (heating/hot water/cooling) aff ected by this function in
menu 4.1.5.
■Contact for activation of “temporary lux”
Temporary hot water production function “temporary lux” is
activated with this signal. Connect the terminals with a
potential-free switch and choose the function in menu 5.4.
“Temporary lux” is activated only when the switch is closed.
■Contact for activation of “external adjustment”
Target temperature offset for supply temperature or room
temperature can be done with this signal.
When a room sensor is connected and activated, the target
room temperature is offset in ℃ if the switch is closed.
When a room sensor is not connected, target supply water
temperature (heat curve) is offset instead. The degree of
off set can be set in menu 5.4.
■Switch for external alarm
Alarms from external devices can be connected to the control
and appear as an info alarm. Potential-free signal of NO or
NC type can be connected.
■Switch for external blocking
This function is used in case certain operation mode needs to
be prohibited. The operation at selected operation mode is
prohibited when the switch is closed. Following functions
can be managed.
Additional heat
compressor operation
heating mode
cooling mode
hot water mode
- 105 -
#
Содержание FDCW100VNX-A
Страница 7: ... 5 Technical data 19 HM T 340 Technical data ...
Страница 36: ... 34 Technical data 19 HM T 340 Dimensions FDCW71VNX A Meaning of symbol ...
Страница 38: ... 36 Technical data 19 HM T 340 FDCW140VNX A Meaning of symbol Dimensions ...
Страница 41: ... 39 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 42: ... 40 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 43: ... 41 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 44: ... 42 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 45: ... 43 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 46: ... 44 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 47: ... 45 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 48: ... 46 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 49: ... 47 Technical data 19 HM T 340 Electrical circuit diagram Split box HSB60 W ...
Страница 50: ... 48 Technical data 19 HM T 340 HSB100 Electrical circuit diagram ...
Страница 51: ... 49 Technical data 19 HM T 340 HSB140 Electrical circuit diagram ...
Страница 52: ... 50 Technical data 19 HM T 340 Electrical circuit diagram Outdoor units FDCW60VNX A ...
Страница 57: ... 55 Technical data 19 HM T 340 Electrical circuit diagram POWER SOURCE RC HY20 W sheet 3 ...
Страница 58: ... 56 Technical data 19 HM T 340 Electrical circuit diagram RC HY20 W sheet 4 ...
Страница 61: ... 59 Technical data 19 HM T 340 Electrical circuit diagram POWER SOURCE RC HY40 W sheet 3 ...
Страница 62: ... 60 Technical data 19 HM T 340 Electrical circuit diagram RC HY40 W sheet 4 ...
Страница 63: ... 61 Technical data 19 HM T 340 Electrical circuit diagram INDOOR UNIT HSB INDOOR UNIT HSB RC HY40 W sheet 5 ...
Страница 64: ... 62 Technical data 19 HM T 340 Electrical circuit diagram RC HY40 W sheet 6 ...
Страница 65: ...Installation 19 HM T 340 Installation 63 ...
Страница 133: ...Control 19 HM T 340 Control 131 ...
Страница 170: ... 168 Service 19 HM T 340 Service ...
Страница 263: ... 258 Service 19 HM T 340 Outdoor unit FDCW60VNX FDCW71VNX Component replacement ...
Страница 264: ...Service 259 19 HM T 340 FDCW100VNX FDCW140VNX LEK LEK Component replacement ...
Страница 290: ... 285 Components 19 HM T 340 Components ...
Страница 300: ... 295 Components 19 HM T 340 PT300 Component positions ...
Страница 301: ... 296 Components 19 HM T 340 Component positions PT300 PT300 A mm 1634 B mm 743 C mm 673 ...
Страница 302: ... 297 Components 19 HM T 340 PT500 Component positions ...
Страница 303: ... 298 Components 19 HM T 340 PT500 Component positions PT500 A mm 1835 B mm 897 C mm 832 ...
Страница 311: ...THo R THo A THo D Outside units FDCW60VNX 306 Components 19 HM T 340 Piping system ...