Check valve NRV 6 S 1/4"
check valve is number 3 on sketch. location may vary depending on heat pump.
check valve fits following heat pumps from Bosch and IVT
Optima 500 (AW)
Optima 700 (AW)
Optima 600 IVT
Optima 900 IVT
Optima 1100 IVT
Optima 1400 IVT
Optima 1700 IVT
Optima 600 230 IVT
Optima 900 230 IVT
Optima 1100 230V IVT
Bosch EHP 6 AW
Bosch EHP 8 AW
Bosch EHP 10 AW
Bosch EHP 14 AW
Bosch EHP 17 AW
Optima 400
Optima 500
Optima 700
Optima 1000 Rego 603
Optima 1300 Rego 603
L / V Outdoor 7 kW A9
L / V Outdoor 10kW A12
L / V Outdoor 13 kW A15
IVT 70 Air 400V 3N
Bosch EHP 8 AW 400V 3N
IVT Air 70,230 over 2
IVT 50 Air 400V 3N
Bosch EHP 6 AW-2 400V 3N
IVT Air 50 230 Ver 2
IVT 90 Air 400V 3N
Bosch EHP 10 AW-2 400V 3N
IVT Air 90,230 over 2
IVT Air 120 400V 3N
Bosch EHP 12 AW 400V 3N
IVT Air 150 400V 3N
Bosch EHP 15 AW 400V 3N
IVT Premium Line A Plus 10
IVT Premium Line A Plus 12
IVT Premium Line A Plus 15
Not sure if it's right item to right your heat pump, do not hesitate to contact us at 042-400 10:01 a.m., chat or email service@jsenergi.com