c l i m a t e m a s t e r.c o m
17
Tranquility
®
Large Water-to-Water (TMW) Series
R e v. : O c t o b e r 5 , 2 0 2 1
T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y
Water Quality Standards, Cont’d.
Volt Meter
Measuring Electrolysis Voltage and Current
300mV
Heat Pump
Wire Electrode inserted into port for
Voltage measurement
Measure the electrolysis voltage using a volt meter between the heat pump ground and a #14 AWG solid copper
wire electrode inserted into the water using a Pete's style access port.
The HP must be opera
�
ng and the water stream
fl
owing.
The voltage measured should be less that 300mV (0.300 V). If higher than 500mV electrolysis will occur and
corrosion will result.
If voltage is measured, the cause is a high resistance earth ground or current on the neutral conductor. Remedial
measures should be performed.
Measure the current
fl
owing through the piping system by using an amp clamp probe on the water-in line. The HP
must be opera
�
ng and the water stream
fl
owing.
There should be zero amps measured. If current is present, there is leakage current to the plumbing system and it
must be rec
�fi
ed to prevent pipe corrosion.
Pete's Port
HP Piping
Amp Sensor to VOM for Current
Water-in
Water-out
