NIBE F1330 - Klimats24.lv

Installation / AdjustmentDescription of functions – Expansion card 12Passive cooling with 2 pipe systemThe collector circuit is connected to a heat exchanger via athree way valve (VXV-KV A/B). The other side of the exchangeris connected to the heating medium circuit via ashunt valve (SV-K) and a circukation pump (PC-K).When cooling is required (activated from the outdoorsensor and any room sensor) the three way valve and thecirculation pump are activated. The shunt valve regulatesso that the cooling sensor (KG) reaches the current setpoint value that is equal to the outdoor temperature andthe set min. value for the cooling temperature (to preventcondensation).For connection of, and function for, room sensors, see section“Description of functions – Basic functions” > “Roomcontrol”.X6bConnection of passive cooling with 2 pipe systemThree way valve (VXV-KV A/B) is connected to terminalblock X6B:1 (230 V), X6B:2 (N) and X6B:3 (NC) alternativelyX6B:4 (NO).The shunt valve (SV-K) is connected to terminal blockX6B:8 (230 V reduce signal), X6B:9 (N) and X6B:10 (230 Vincrease signal).There is a potential free relay for the circulation pump function(CP-K), which can be used as control voltage or powersupply (Max 6 A, 250 V). If the relay is used as controlvoltage the supply can be bridged internally from X13:4to X6B:22, use X13:9 as N and then receive the signal onX6B:23. Max current must be 0.4 A and the control voltageis 230 V.External supply to the control signal/power supply for thecirculation pump (CP-K) is connected to terminal blockX6B:22 (max fusing 6 A and 250 V) and the control signal/power supply is on X6B:23.LEKX13+Exp. card 2The heat pump in the picture is fitted with accessories.44 NIBE F1330