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Water pipe installation
1 . Use closed type water pipe and closed type expansion tank when constructing water piping system .
2 . Water pipe installation system
1) Install the water pipe as shown in the below illustration . All the parts, other than DVM Hydro unit / Hydro unit HT,
must follow on site installation specification .
<Water pipe connection part>
Finishing tape
Water
pipe
f Installing hot water supply
Hydro unit
Heat
exchanger
on water
side
⑥
① Water pipe joint (union, flange)
② Thermometer
③ Manometer
④ Ball valve
⑬ Water Valve
22
DVM Hydro unit / Hydro unit HT
Insulation
On site
installation
Ball valve (Used as
cleaning hole)
⑭
②
③
④
①
⑫
⑪
⑤ Flexible joint
⑥ Drain (within the product)
⑦ Pump
⑧ Air vent
⑭ Pressure relief valve (Pressure safety valve)
⑧
Cleaning device
⑤
⑨
⑦
⑨ Expansion tank
⑩ Temperature sensor for hot water tank
⑪ Drain valve
⑫ Strainer
Buffer tank
(Mixing tank)
Water out
⑩
⑬
Water in
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