How To Install Sanitary Water Tank; How To Wire Sanitary Water Tank Heater - LG THERMA V AHBW036H0 Installation Manual

Accessories Installation
WARNING
Installing recirculation pump
When is used with sanitary water tank, it is STRONGLY recommended to install recirculation
pump to prevent flooding out cold water at the end of hot water supply and to stabilize the water
temperature inside the sanitary water tank.
- The recirculation pump should be operated when sanitary water demand is not required.
Therefore, external time scheduler to determine when the recirculation pump should turn on and
turn off is required.
- The operating duration time of the recirculation pump is calculated as follow :
Duration time [minute] = k * V * R
k : 1.2 ~ 1.5 is recommended. (If distance between pump and tank is far, then choose high number.)
V : Volume of sanitary water tank [liter]
R : Water flow rate of pump [liter per minute], which is determined by pump performance curve.
- The pump operating start time should be prior to the sanitary water demand.

How to install sanitary water tank

For more detail information about installing sanitary water tank, please refer installation manual
provided with sanitary water tank.

How to wire sanitary water tank heater

Step 1. Uncover heater cover of the sanitary water tank. Heater is located
inside of the tank.
Step 2. Find terminal block in the water tank kit and connect wires as
below. Wires are field-supplied item.
(L) : Live signal from Water tank kit to heater
(N) : Neutral signal from Water tank kit to heater
WARNING
Wire specification
• Cross-sectional area of the wire should be 5 mm
Adjusting thermostat temperature
• To guarantee proper operation, it is recommended to set temperature of
thermostat to maximum temperature (symbol at the picture).
36 Air-to-Water Heat Pump
Hot water supply
Water Tank
Sensor
Water Out
Water In
Sanitary
Water Tank
2 .
Recirculation
Pump
Check V alve
City water
Shower
(End of Hot
water supply)
External
Time Scheduler
[PHLTB]
Terminal block
in the water
tank kit
3 4
L N
BR BL
(L) (N)
A