Mitsubishi Electric SUZ-SWMVA Serie Manuel D'installation page 13

8. Water piping work
8.1. Minimum water quantity
Refer to the indoor unit installation manual.
8.2. Available range (Water flow rate, return water temp.)
Ensure the following water flow rate and return temperature range in the water circuit.
These curves are related to the water quantity.
■ Heating
SUZ-SWM30VA SUZ-SHWM30VAH
SUZ-SWM40VA2 SUZ-SHWM40VAH
SUZ-SWM60VA2
24.0
21.0
18.0
15.0
Unavailable range
12.0
7.0
SUZ-SWM80VA(H)2
SUZ-SWM100VA(H)
SUZ-SHWM60VAH
24.0
21.0
18.0
15.0
12.0
Unavailable range
9.0
11.0
Note:
• Be sure to avoid the unavailable range during defrosting.
Otherwise, the outdoor unit is insufficiently defrosted and/or the heat exchanger of the indoor unit may freeze.
• Flow temperature MUST always be NO lower than 32 °C when outdoor temperature drops below -15 °C.
Potential risks of plate heat exchanger get frozen and damaged, and also outdoor heat exchanger would be frosted due to insufficient defrosting.
Minimum return water temperature due to the water quantity of system
9.0 11.0 13.0
Water flow rate [L/min]
Minimum return water temperature due to the water quantity of system
13.0 15.0 17.0 19.0
Water flow rate [L/min]
Available range
(10~30L)
(30~40L)
(over 40L)
15.0 17.0
Available range
(17~30L)
(30~40L)
(over 40L)
21.0 23.0 25.0 27.0
en
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