Installation Guide

62 Rinnai Tankless Water Heater Installation and Operation Manual
Table 27. Parameter Settings
Selection Setting
#
Description
A b C d
E F
0 1
Maximum Set
Temperature
140°F
(60°C)
185°F
(85°C)
0 2
High Altitude
Installation Location
0 - 2,000 ft
(0 - 610 m)
2,001 - 5,400 ft
(610 - 1,646 m)
5,401 - 7,700 ft
(1,646 - 2,347 m)
7,701 - 10,200 ft
(2,347 - 3,109 m)
0 3
Service Soon
1
Disabled 0.5 Year 1 Year 2 Years
0 4
3
Recirculation
Settings
No
Recirculation
Recirculation
(Dedicated)
Recirculation
(Crossover)
0 5
Recirculation Mode
2
* Economy Comfort Commercial
5
0 6
Control Switch BMS
7
Air Handler (AH)
0 8
Cascade Secondary Primary
0 9
Units in Standby
(Cascade)
1 2 3 4 5 6
1 0
Gas Type NG LPG
1 2
Built-in Pump Setting Without Pump With Pump
1 3
Water Heater Model
(Factory set values
and not adjustable)
199 (3237) 180 (2934) 160 (2530) 130 (2024)
1 4
Indoor/Outdoor
Internal
(Indoor)
External
(Outdoor)
1 5
3
Low Activation Mode On Off
1 6
Pump Speed* Max High Medium Low
1 7
4
First Day Pump
Operation*
Pump Off Pump On
1 8
6
Smart-Circ with BLE
Button*
Smart-Circ is
disabled
Smart-Circ is
enabled
* Pump models only.
1
See section “4.13.3 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
Low Activation Mode must be in the ON position (15A ) if crossover recirculation is selected
(Parameter 04C).
4
For the first 24-hours of operation, Smart-Circ will learn hot water usage patterns and operate
pump based on the learned patterns. On the first day, when the tankless water heater has no
learned patterns, the unit can be set to no pump operation (Pump Off/No Recirc) for the first 24
hours or to the pump operating (Pump On/Recirc) multiple times per hour depending on setting
05 (Recirculation Mode).
5
Commercial mode should not be used for residential applications. Application of commercial
mode may result in excessive machine wear and energy consumption.
6
To comply with California Title 24, select 18A (Smart-Circ is disabled).
7
BMS = Building Management System
Note (Parameter 10): To change gas type, you must power cycle the water heater (turn off
electrical power to the water heater, then turn on power again). Power can be turned off by
unplugging the power cord or turning off electricity at the circuit breaker. The temperature
controller does not control the electrical power.