Storage Tank Circulation pump
2
Storage Tank Circulation pump
1
Relief valve
Hot water
supply point
s
Hot water supply lin
e
Hot water return line
Cold water supply pipe *1
When installing 2 pumps in parallel
Set “Yes” for the question “Start pump rotation?” in system settings. (See SCU-401-12M Installation Manual)
* Size the cold water supply piping to allow for maximum flow rates of the building.
* Be sure to connect the cold water supply pipe between the hot water storage tank and intake side of the storage tank circulation pump.
Thermostat
System Controller Unit
Remote controller cor
d
Remote Controller
Pump control (use external relays)
Unit
1
Unit
2
Unit
3
Unit 10
Unit 11
Unit 12
(copper or stainless steel pipe)
Hot water storage tank
(copper or stainless steel pipe)
Return line circulation pump
(Size for max. flow
)
(Size for max. flow
)
Storage tank supply line (copper or stainless steel pipe)
Storage tank return line (copper or stainless steel pipe)
B-2. Example of Installation with a Storage Tank and Recirculation System (Using external system controller)
The pump will push water through the Multi-System to heat up the tank.
When the temperature of the thermostat is high, the system controller will turn off the pump until the
temperature cools down.
*
For the set temperatur
e of the r
emote contr
oller
, use the temperatur
e (of the thermostat) + about 5 °C.
*
To achieve the highest r
ecovery
, size the storage tank cir
culation pump for maximum capacity
.
(TH50ECR6 : 30 L/min (each), TH32ECR6 : 18 L/min (each), TH28ENR6 : 18 L/min (each) @ 20 m of head +
piping losses thr
ough the system.)
(Tank recirculation system)
* The remote controller terminal location
may differ depending on the unit.
43
Содержание TH28ENR6L
Страница 9: ...Component Details Example TH50ECR6 series model shown for illustration only Ex TH50ECR6 9 ...
Страница 11: ...TH28ENR6 series model shown for illustration only Ex TH28ENR6 11 ...
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Страница 50: ...Thermann Installer s Manual Gas Continuous Flow Water Heaters 50 Memo ...
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