3.12 Parameter Settings
WARNING
unless specifically instructed to do so.
Certain elements of the installation may require adjusting
the parameters of the tankless water heater.
To adjust the parameters:
1. Locate the PC Board (lower right side of unit).
2. Locate the two push buttons (A and B) on the PC Board.
3. Press the "A" button for 1 second.
Parameter Settings Table
Default is A for all settings below except 10, 12, 13, and 14 which are factory set.
SETTING
SETTING DESCRIPTION
#
0 1
Maximum Set Temperature
High Altitude
02
(Installation Location)
03
Service Soon
04
Recirculation Settings
05
Recirculation Mode
06
Control Switch
07
Units in Standby (EZConnect™)
10
Gas Type (Factory Set)
1 1
Maximum Flow Rate
1 2
Water Heater Model
1 3
(Factory set values and
not adjustable)
1 4
1
See section "3.13 Service Indicator (Service Soon, 55)" for more information.
2
Setting 05 is available only if setting 04 is selected.
Economy mode cycles the pump less often, using less energy to maintain the circulation loop temperature.
Comfort mode cycles the pump more frequently, ensuring the loop temperature remains higher (but also uses more
energy).
3
BMS = Building Management System
4
Selecting "High" will increase the water flow rate to the maximum capacity.
Rinnai Tankless Water Heater Installation and Operation Manual
DO NOT adjust parameter settings
0 - 2,000 ft
(0 - 610 m)
1
Disabled
Recirculation
2
Economy
4
Standard
Without Pump
199 (3237)
Internal (Indoor) External (Outdoor)
4. Use the
buttons on the controller to
select a setting number (see
Parameter Settings Table
below).
5. Once the desired setting number is selected, use the
"On/Off" button on the controller to change the
selection for the setting number.
Example: Display will change from 01A to 01b for
Maximum Temperature setting (as shown below).
A
B
0 1 A
6. To exit the parameters, press the "A" button for 1 second.
A
120° F
140° F
2,001 - 5,400 ft
(610 - 1,585 m)
0.5 Year
No
Recirculation
(Dedicated)
Comfort
3
BMS
Air Handler (AH)
2
1
NG
LPG
High
With Pump
180 (2934)
(Up) and
(Down)
SELECTION
c
5,401 - 7,700 ft
(1,585 - 2,347 m)
1 Year
160 (2530)
0 1 B
7,701 - 10,200 ft
(2,347 - 3,109 m)
2 Years
130 (2024)
51