C325R/C325R2 - Rinnai
⚠️ IMPORTANT SAFETY NOTICE
DO NOT connect the AC unit control cable to the HA/HB (CN45) terminal on the indoor board if the unit is not listed as compatible for HA/HB connection. Incorrect connection will result in iZone CPU damage.
Rinnai Compatibility:
Current Firmware Version - 1.0
SERIES & kW | INDOOR | OUTDOOR | AC UNIT MODULE |
|---|---|---|---|
DINLR XX Series only |
|
| C325R |
DINLR XX A Series only |
|
| C325R2 |
Can use RA, Zones, Master or RF as controlling sensor
Polarity is critical see below, for correct connection
For HA/HB connection
Please refer to the information below for HA/HB connection details:
The unit models listed below require a minimum C225 firmware version 3.79 and the C325R2 AC unit module for operation
INDOOR | OUTDOOR |
DINLR07B1A DINLR09B1A DINLR11B1A DINLR13B1SA DINLR15B1SA DINLR15B1SA DINLR18B1SA | DONSR07B1LA DONSR09B1LA DONSR11B1LA DONSR13B1LA DONSR15B1LA DONSR15B1TA DONSR18B1TA |
A 2-core twisted pair control cable must be connected from the C225 / C325R2 controller to the HA/HB (CN45) port on the fan coil unit. The cable is supplied by iZone (CACUCM15). Connect the AC unit communication cable from the fan coil unit to the C225 as indicated below:
For CN40 connection
For connection of older R410A fan coil units below:
Compatible Indoor Models | DINLR07Z72 DINLR10Z721 | DINLR14Z72 DINLR17Z72 |
|---|
Connect a 2 core + earth, twisted pair control cable from the C225 / C325R to the CN40 port on the fan coil unit. This cable is supplied by iZone - CACUCM15
Some Rinnai indoor units may have either of two connections: CN9 and CNXYE.
For CN9 connection
Connection for Three phase systems 20+kW.
Compatible Indoor Models | DINLR20Z7 | DINLR24Z7 |
|---|
For CNXYE Connection
Single phase R32 models 7-18 kW.
Compatible Indoor Models | DINLR07B1 DINLR09B1 | DINLR11B1 DINLR13B1 | DINLR15B1 DINLR18B1 |
|---|
Connect a 2 core + earth, twisted pair control cable from the C225 / C325R to the CNXYE port on the fan coil unit. This cable is supplied by iZone - CACUCM15
Indoor fan coil unit PCB
CN40: Connect to X and Y
C225 AC unit connector: Connect AC unit cable from fan coil to C225 as indicated
Polarity is critical: Make sure it is wired in accordance with these instructions on both the CN40 /CN9/CNXYE connector on the fan coil PCB and the C225 cable connector
Cable from CN40: Ensure the cable is shielded, 2 core, twisted pair. This cable is pre-terminated suitable for CN40 connector and is supplied by iZone
Resetting the Unit Addressing on Rinnai 20Kw+ units
When a Rinnai AC unit controller is used to do a test run, to put the iZone control system back on and operate the AC, unit addressing needs to be reset. Below is the procedure on how to do it.
First, make sure to cut the power to the indoor and outdoor unit both.
Clear the indoor addresses by adjusting the S6 dip switch on OUTDOOR UNIT BOARD according to the photo:
Wait for 5 minutes, then turn both indoor and outdoor units back on.
Please wait another 5 minutes and turn it off again.
Next, switch the unit to automatic addressing as shown below:
Now please power to the both indoor and outdoor back up
Connect iZone system back to the indoor unit and wait for 5 minutes.
You can run your AC by iZone system now.