Way Airflow System - Mitsubishi Electric TRANE SLZ Series Technical & Service Manual

10

4-WAY AIRFLOW SYSTEM

10-1. FRESH AIR INTAKE (LOCATION FOR INSTALLATION)
At the time of installation, use the duct holes (cut out) located at the positions shown in following diagram, as and when required.
10-2. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS
Taking air into the unit
Airflow : Q
0 10 20
0 0.3 0.6
0
−30(-12)
−60(-24)
−90(-36)
−120(-48)
−150(-60)
NOTE: Fresh air intake amount should be 10% or less of
whole air amount to prevent dew dripping.
10-3. OPERATION IN CONJUNCTION WITH DUCT FAN (BOOSTER FAN)
● Whenever the indoor unit operates, the
duct fan operates.
(1) Connect the optional multiple remote
controller adapter (PAC-SA88HA-E)
to the connector CN51 on the indoor
controller board.
(2) Drive the relay after connecting the
12 V DC relay between the Yellow
and Orange connector wires.
Use a relay of 1W or smaller.
MB: Electromagnetic switch power
relay for duct fan.
X: Auxiliary relay (12 V DC LY-1F)
OCHT669
Fresh air intake
Refrigerant pipe Electrical Box
30 40 50 [CFM]
0.9 1.2 1.5 [CMM]
Multiple remote
controller adapter
PAC-SA88HA-E
CN51
Detail drawing of fresh air intake
5-17/32
Burring hole
120°
Ceiling surface
Drain pipe
How to read curves
Curve in the
1
left graphs
0
Q
2
Q
3
Q
Qa
CN51 5
on
indoor unit
board 1
Connector (5P)
Indoor unit side
Indoor controller board
30
(Unit: inch)
Cutout hole
Duct characteristics
at site Q ... Designed amount of fresh air intake
A ... Static pressure loss of fresh air intake
duct system with air flow amount Q
B ... Forced static pressure at air conditioner
inlet with airflow amount Q
C ... Static pressure of booster fan with air
flow amount Q
D ... Static pressure loss increase amount of
fresh air intake duct system for air flow
amount Q
E ... Static pressure of indoor unit with air
flow amount Q
Qa ... Estimated amount of fresh air intake
without D
Be sure to secure insulation
material by tape, etc.
Green
Yellow −
+
Orange
Red
Brown
Installation at site
Multiple remote
controller adapter
Be sure to secure insulation
PAC-SA88HA-E
material by tape, etc.
<CMM (CFM)>
<Pa (in.W.G.o10 -2 )>
<Pa (in.W.G.o10 -2 )>
<Pa (in.W.G.o10 -2 )>
<Pa (in.W.G.o10 -2 )>
<Pa (in.W.G.o10 -2 )>
<CMM (CFM)>
~
MB
Distance between indoor
controller board and relay
must be within 10m.