112
11/6/2018
© 2015 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
Enhancing Lives By Changing The Way Water Is Heated
Programming Cascade Communication. See section 3.12 Parameter Settings of the install manual.
Setting # 08 Cascade:
-
Primary:
Select the water heater intended to be the primary water heater for cascade communication. Set the parameter for this water
heater to
“Primary” –
(
08b
).
NOTE:
This controller will display the set temperature for the system.
-
Secondary:
Factory Default setting for each water heater is set to
“Secondary”
- (08A).
Parameter adjustment will only be necessary on the
water heater identified as “Primary”.
NOTE:
Secondary water heater controller(s) will display “
- - -
“ when the primary unit is selected.
Setting # 09 Units in Standby:
-
Adjust the parameter setting of the
Primary
unit to select the number of water heaters in standby mode. Up to 6 units can be selected to be
in the standby mode. Standby units will maintain operation with the water flow control valve in the Open position. The standby units will be
ready to fire when sufficient water flow is detected.
- The remaining secondary water heaters will maintain operation with the water flow servo valve closed and will operate when water flow
demand increases to the point additional units are needed.
Setting Secondary ID:
-
After identifying the
“Primary”
water heater in the parameter settings, set the
ID
for ALL remaining water heaters in the system by pressing
the On/Off button on each controller.
-
When a position ID setting is successful, the controller on that unit will change from “
- - -
“ to show the newly set ID number. The secondary
ID will be displayed in the order the buttons are pressed on the secondary units.
- Example
:
First secondary unit will show “
–
01
“ , Second secondary unit will show “
–
02
“ and so on.
Cascading Multiple Units
–
Commercial ONLY
Setting #
Setting Description
Selection
A
B
C
D
E
F
08
(Commercial ONLY)
Cascade
Secondary (1-24)
Primary
09
(Commercial ONLY)
Units In Standby
(Cascade)
1
2
3
4
5
6
