Drainage Piping Work; Water Piping Work - Mitsubishi Electric PUD-SWM AA Série Manuel D'installation

6. Drainage piping work

Outdoor unit drainage pipe connection (PUD-SWM)
When drain piping is necessary, use the drain socket or the drain pan (option).
PUD-SHWM series is not connectable drainage pipe because of cold district specification.
Note:
Do not use the drain socket and drain pan in the cold region.
Drain may freeze and it makes the fan stop.
Drain socket PAC-SG61DS-E
Drain pan PAC-SJ83DP-E

7. Water piping work

7.1. Minimum water quantity
Refer to the indoor unit installation manual.
7.2. 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.
PUD-SWM60, 80
PUD-SHWM60, 80
PUD-SWM100, 120
PUD-SHWM100, 120, 140
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.
Minimum return water temperature due to the water quantity
23.0
20.0
17.0
14.0
11.0
Unavailable range
8.0
5.0
8.0 11.0 14.0
Minimum return water temperature due to the water quantity
26.0
23.0
20.0
17.0
14.0
Unavailable range
11.0
12.0 16.0 20.0
17.0 20.0
Water flow rate [L/min]
24.0 28.0 32.0
Water flow rate [L/min]
Available range
(10L~15L)
(15L~25L)
(25L~40L)
(over 40L)
23.0 26.0
Available range
(15L~25L)
(25L~40L)
(40L~60L)
(over 60L)
36.0 40.0
en
12