Installer Connections - Mitsubishi Electric Climaveneta i-BX-004-013M Installation, Operation And Service Manual

INSTALLER CONNECTIONS

YV5 3-way valve for domestic hot water production
(i-BX-N only)
The 3-way valve installed outside of the unit deviates the
flow of hot water produced by the unit to the DHW storage
tank.
During domestic hot water production, the cooling/heating
demand is not satisfied.
Wire the three-way valve supplied as an accessory by Man-
ufacturer following the instructions shown in the figure.
The valve is also fitted with a limit switch. The limit switch
contact is either closed or open based on the position of the
valve.
Auxiliary contact closed = valve open (DHW position)
Auxiliary contact open = valve closed (system position)
If not supplied by Manufacturer, the 3-way valve for domes-
tic hot water production should have the following character-
istics:
• Voltage 230V AC, 50/60 Hz
• Opening/closing time 10s.
• Delta P 500 kPa
• Fluid temperature 0°C to 90°C
Use three-way valves with pressure drop below 20 kPa.
For further details see the chapter "Operating characteris-
tics".
Domestic hot water production (i-BX-N only)
Description Menu
Domestic hot water produc- Mn02
tion mode:
- DISABLED
- HEAT PUMP ONLY
- HEATER+HP
- HEATER ONLY
Domestic hot water Mn00
COMFORT temperature set
point with heat pump
Domestic hot water ECO- Mn00
NOMY temperature set point
with heat pump
Optional connection (i-BX-N only)
KM2 System outlet electric heater
An electric heater installed at the outlet can be activated as
a supplementary heater for the system.
Warning: the heater may, in some cases, be used instead
of the compressor for DHW production: parameter 0202
needs to be set to "Heat pump only" and the outdoor air
temperature must be lower than parameter 0234, which can
be set from -20 to +20°C (default -20°C).
The hysteresis is fixed (2°C).
Solution 1
System with heat pump and electric heater with storage
tank.
Position probe BT9 in the storage tank.
Parameter Default Value to
no. be set
0202 DISABLED HEAT
PUMP
ONLY
0023 48°C Example
45°C
0022 44°C Example
40°C
Heat pump
Installer terminal block
22 14 15
Auxiliary contact
Signal 230V (line)
Line 230V
Neutral
Neutral anti-condensation heater
AUX limit switch contact
If three-way valves with a travel time greater than 10 sec-
onds are used, modify the setting of parameter 0231
Description
Three-way valve
travel time for
domestic hot water
production
UOM
IMPORTANT: probe BT8 is required for the DHW function
(see page 32).
The probe is enabled automatically when domestic hot
water production is enabled.
°C
°C
1
12 22
230V / 400V
3-way valve
Black
Brown
Blue
Red (SMP28*)
White (SMP28*)
Green
* Valve model
Menu Parameter Default Value to be set
no.
Mn02 0231 12 Set the travel time
for valves not
supplied by the heat
pump manufacturer
25 34
EN i-BX-(Y)_i-BX-N-(Y)
I A
Black
Brown
Blue
Red
White-Green
UOM
sec.
BT9
21