Connecting The Heat Pump To The Heating System; General - IVT Greenline D14 Manual To Installation, Commissioning And Maintenance

Electrical connections:
The ground water pump is connected to 3 x 400 volt with a motor cutout and a contactor. Power to
contactor CK3(230V) is taken from terminals L and N (P3) in the heat pump. The auxiliary contact
for motor cutout MB3 is series connected with the "MB2" alarm. In this way the ground water pump
starts and stops with the heat pump's heat transfer fluid pump and during motor cutout MB3, the
heat pump stops and the heat transfer fluid pump alarm shows in the alarm display. NOTE: A
single-phase pump should always be connected with a contactor. It should never be con-
nected to the P3 outlet on the heat pump.
Groundwater Recharge well
Connecting to the heating system

General

Installation must be carried out by an authorised installer and must follow the current regulations and
recommendations of IVT. The pipework must be flushed before the heat pump is connected to
protect the heat pump from contaminants.
Please note that the connecting instructions are only outlined sketches. For more detailed descrip-
tions please see IVT's system manual for properties. See IVT's homepage http://www.ivt.se/.
Intermediate heat
exchanger
The flow in the exchanger must be
counterflow. The pipe from the well is
connected to the bottom of the exchanger
so that the flow goes upwards.
Terminal
card
G8 (P8)
Ground
water pump
To the heating system
Filling unit Exp.
Filter
Safety valve
Dotted line connected by an electrician