When Connecting Multiple Units; Optional Parts; Setting Method For Secondary Side Control - Mitsubishi Electric QAHV-N560YA-HPB Installation & Operation Manual

4 When connecting multiple units

To connect multiple units, configure one secondary side circuit system for each unit as shown in the figure
below. (Install a heat exchanger, flow sensor, and thermistor for each unit.)
QAHV-
N560YA-HPB
QAHV-
N560YA-HPB

(3) Optional parts

The flow sensor and thermistor in the system are sold separately.
For the pipe connection method, refer to the manuals of the optional parts (Q-1SCK).
Secondary circuit kit Q-1SCK
Parts
Thermistor
Flow sensor

(4) Setting method for secondary side control

After configuring the secondary side control system, perform the following operation to perform the secondary side
control operation.
1. Set the digital setting item "121" to 1 (for details on the operating procedure, refer to page 28).
2. Perform a water flow rate adjustment operation (for details, refer to "Water flow rate adjustment operation (when
the secondary side control is enabled)" (page 37)).
Storage tank
Shape
A
B
A
21
QAHV-
N560YA-HPB
QAHV-
N560YA-HPB
The size and length noted are approximate.
B C
D
C
Storage tank
Specification
A: 157 mm
B: 42 mm
C: 54 mm
D: 48 mm
A: 129 mm
B: R3/4
C: R3/4
Wiring length: 1.9 m