Product Description
General description
The ACT-4 wireless is a potable hot water recirculation kit for use in new and retrofit
domestic hot water systems. The kit helps to:
• Improve comfort through instant hot water
• Save energy
• Conserve water
Parts included in kit
• Pump with a built-in timer
• 6 ft (1.8 m) power cord
• Under-sink mixing valve with transmitter/receiver
• Two 1.5V LR06 AA Batteries
• Valve mounting bracket
• Two screws
• Installation, Operation, and Maintenance Manual (IOM)
Additional parts needed for install
• (2) 3/8" Compression x 1/2" stainless steel flex hoses
• (2) 1/2" x 1/2" stainless steel flex hoses (optional)
• Hand tools including various wrenches and #1 and #2 Phillips Head screwdrivers
• (1) 3/4" Isolation shut-off valve and associated adapters and nipples (optional - if
pump desired to be isolated for maintenance)
Verify the type of 1/2" connection that may be required for the stainless steel flex hoses:
Compression or NPT/IPS.
Operational specifications
Operational limits
Pump and valve
Operating medium
Water
Maximum working pressure
145 PSI (10 bar)
Minimum operating differential pressure (Valve)
1.6 PSI (0.11 bar)
Maximum water temperature
203°F (95°C)
Motor
115 V, 1 PH, 60 Hz, 20 Watts input, 0.3 Amps, 4800 RPM
Operating noise level
30 dB
Battery power
1.5 V each
Estimated battery life
2 Years
Maximum operating range
150 ft (45 m)
WARNING:
Do NOT exceed the maximum working pressure of the pump. This information is listed on
the nameplate of the pump.
Product Description
6
Laing Thermotech ACT-4 wireless Potable Hot Water Recirculation Kit Installation, Operation and Maintenance
Manual
