Commissioning: Heat Pump tips

Short, practical technician tips on commissioning for heat pump. Check each one against the manual for your exact model before acting.

Pair the gateway by Bluetooth (Connect button)

Bosch · IDS Premium Connected gateway

Holding Connect for at least 4 seconds turns Bluetooth on so the app can pair with the gateway.

1. Hold the Connect button for at least 4 seconds
2. Watch the blue LED: 1 blink means pairing mode

Refrigerant charging mode on Infinity control (25VNA8/24VNA9)

Carrier · Carrier Infinity 25VNA8/24VNA9 communicating systems

Opened from the Installation and Service screen to check or set charge. Offers weigh-in or heating check methods; the heating check runs at stage 5 with matched fans and counts down while stabilizing. Service-valve subcooling shows only when temperatures are in range.

1. On the Infinity control open Installation and Service, then Refrigerant Charging
2. Pick the charge method on the Charging Mode Selection screen
3. Wait for the stabilization countdown before reading pressures

Run the outdoor commissioning sequence (steps 01 to 17)

Gree · Gree GMV6 Ultra Heat Mini VRF 36-60k (GMV-V..WL/C-T(U))

On a new system or after replacing the outdoor main board, the outdoor display walks through numbered commissioning steps; a step with a fault shows the fault code and resumes once it is cleared.

1. Start: when the board shows A0, hold SW3 for 5 seconds.
2. 01 set master unit, 02 allocate addresses, 03 confirm outdoor quantity, 04 confirm indoor quantity (SW3 to confirm).
3. 05 outdoor drive communication and capacity ratio, 06 outdoor components, 07 indoor components.
4. 08 compressor preheat (SW3 may be used to confirm 8 hours have passed), 09 refrigerant check, 10 outdoor valve check (U6 shows if the valves are not fully open).
5. 12 confirm start (AP, then AE), 15 cooling debug (AC) or 16 heating debug (AH), each passing after 50 minutes with no fault.
6. 17 finished: oF and standby.