Valve testing
Connect the valve to the adapter, insert it into the VT1 end-plate and set the mode selector to Test. Each coil (2A, 2B, 1B, 1A) is checked individually — a green LED lights when its resistance is in range.
HVAC Tools · VT1
Electronic Expansion
Valve Tester & Driver.
Check all four EEV coils for correct resistance and drive the valve open or closed — on the bench or in the field. Ships with an adapter for LG LGK-09 style valves.
Prominent features
- Automatically checks all four coils for correct resistance
- Opens or closes the valve in drive mode
- High-efficiency LED driver
- Includes an adapter for LG 5-wire & 6-wire LGK-09 style valves
- Replaceable 9V battery
- Optional adapter for other 12-Volt EEVs
Specifications
- Battery type
- 9V or rechargeable 9V Lithium
- Accepted coil resistance
- 30 Ω – 300 Ω
- Dimensions
- 1" H × 3.2" W × 5.5" D
- Battery life — Test mode
- Up to 35 hrs
- Battery life — Drive mode
- Up to 5 hrs
- Warranty
- 1-year limited
How it works
Driving the motor
Pick a direction with the direction switch and set the mode to Drive. The tool pulses ~210×/second — roughly 20 seconds to fully open or close an LGK-09 valve.
