System Control Of Fresh Air Intake Unit - Toshiba MMD-UP0721HFP Series Service Manual

2. SYSTEM CONTROL OF FRESH AIR INTAKE UNIT

System able to be combined
The fresh air intake unit is connectable to SMMS (Super Modular Multi system series).
However this is not connectable to SHRM (Super Heat Recovery Multi system series), and MiNi-SMMS (MCY-**) series.
System combination
<Super Modular Multi System u series (SMMS-u)>
1. The total capacity of the indoor units and the fresh air intake units is restricted to 80% to 110%
against the capacity of the outdoor units.
2. Up to fresh air intake units can be connected on one line of the multi system. The allowable total
capacity of the four fresh air intake units shall be 30% or less against the total capacity of the indoor units
(including the fresh air intake units).
When two Fresh air intake units or more are installed into one refrigerant line, all the units to be installed
•
must be the same model (MMD-UP***HFP*).
Keep the height difference between the fresh air intake units to 5 m or less.
•
Correct
• All fresh air intake unit connection
Correct
Correct
80% to 110% to capacity of the outdoor units
Height difference : 5 m or less
- 11 -
Up to fourfresh air intake
units, occupy 30% or less