External Connections In The D Series - IVT GreenlineC 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. Connected 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.
• P1, external main pump in the heating system: Must always be connected.
Connected to terminals P1.
• Return sensor radiator GT1: Must always be connected. Connected to termi-
nals GT1.
• Outdoor sensor GT2: Must always be connected. Connected to terminals GT2.
• Hot water sensor GT3: Connected if the heat pump is to produce hot water.
Connected to terminals GT3 X
• Room sensor GT5: Connected if room sensor influence required. Connected to
terminals GT5. If room sensor alarm is required it is connected to terminals
ALARM LED.
INC. POWER
SUPPLY
3X400VAC+N+PE
TERMINAL
CARD
INC. POWER
SUPPLY
3X400VAC+N+PE
TERMINAL
CARD
Removed
New clamp
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 oiol-
fired boiler/electric boiler
and connect to relay
terminals 11 and 14.
Connecting additional heat to electric heater, operating
modes A and C
If the additional heat is an electric heater it is connected in the
following way: Remove the clamp between L and ELB on
contact T1. Mount a new clamp between terminal L3 and ELB
on contact T1. Mount the wire on help relay HR to N and L to
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 alarm function is required for the electric heater's overheat
protection the clamp between L3 and ELB should not be
removed but the clamp between L and ELB. A clamp is
Wiring to the
electric heater,
mounted instead to ELB from the overheat protection,
(starting) is
connected to
PLEASE NOTE! Must be phase 3. (see Circuit diagram
relay terminals
11 and 14.
E series)
51
TERMINAL
CARD
GENERAL
ALARM
ALARM
EXT
LED
Alarm lamp, room sensors