External Connections In The D Series - IVT Greenline D14 Manual To Installation, Commissioning And Maintenance

External connections in the D series

•
Power supply: Connect to terminals L1, L2, L3, N and PE. Alarm triggers if
phases connected wrongly.
•
3-way valve: Connected if the heat pump is to produce hot water. Con-
nected to terminals VXV.
•
Mixing valve for oil-fired boiler: If a mixing valve is required for the oil-
fired boiler then it is connected to terminals SV1.
•
G1 (P1), external main pump in the heating system: Must always be
connected. Connected to terminals P1.
•
Return sensor radiator T1 (GT1): Must always be connected. Connected
to terminals GT1.
•
Outdoor sensor T2 (GT2): Must always be connected. Connected to
terminals GT2.
•
Hot water sensor T3 (GT3): Connected if the heat pump is to produce hot
water. Connected to terminals GT3 X
•
Room sensor T5 (GT5): Connected if room sensor influence required.
Connected to terminals GT5. If room sensor alarm is required it is connected
to terminals ALARM LED.
3-WAY MIXING
VALVE VALVE
INC. POWER SUPPLY
3X400VAC+N+PE
TERMINAL
CARD
3-WAY MIXING
VALVE VALVE
INC. POWER SUPPLY
3X400VAC+N+PE
TERMINAL
CARD
Removed
New strap
P1
Connection of additional heat to oil and electric boiler,
operating mode B
When additional heat is from an oil-fired or electric boiler with
a mixing valve the wiring to the burner or contactor is con-
nected to terminals N and L on contact T1 via a help relay
HR. L1 provides 230Vac.
If the electric boiler has an inlet for telecontrol it is connected
to the help relay.
Cut the cable to the oil-
fired boiler/electric boiler
and connect to relay
terminals 11 and 14.
Connecting additional heat to electric heater, operating
modes A and C
P1
If the additional heat is an electric heater it is connected in the
following way: Remove the strap between L and ELB on
contact T1. Fit a new strap between terminal L3 and ELB on
contact T1. Fit the coil on help relay HR to N and L on
contact T2. The electric heater's on/off is connected to the
help relay terminals 11 and 14. Concerns both contactors and
telecontrol function in the electric heater.
Connecting power is set at 2/3 in the 5.2 menu display
If the alarm function for the electric heater's overheat protec-
tion is required the strap between L3 and ELB should not be
fitted and the strap between L and ELB is removed. Instead a
Wiring to the
strap is fitted to ELB from the overheat protection, PLEASE
electric heater,
(starting) is
NOTE! Must be phase L3. (see circuit diagram E series)
connected to
relay terminals
11 and 14.
49
TERMINAL
CARD
ALARM
GENERAL
LED
ALARM EXT
Alarm lamp,
room sensor.