Rinnai Tankless Water Heater Installation and Operation Manual
39
Table 18: Parameter Settings Table
SETTING
#
SETTING
DESCRIPTION
SELECTION
a
c
01
Maximum Set
Temperature
120°F
140°F
02
High Altitude
Installation
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)
03
Service Soon
Disabled
0.5 Year
1 Year
2 Years
04**
Recirculation Settings
No
Recirculation
Recirculation
(Dedicated)
Recirculation
(Crossover)
05
Recirculation Mode
Economy
Comfort
06***
Control Switch
BMS
Air Handler (AH)
07
Units in Standby
2
1
10
Gas Type
LPG
NG
12
Water Heater Model
(Factory set values
and not adjustable)
Without Pump
With Pump
13
199/160
14
Indoor
Outdoor
15
1
Low Activation Mode
On
Off
16
Pump Speed
Max
High
Medium
Low
17*
First Day Pump
Recirculation
Pump Off
Pump On
18
Setting Temperature
Table
Default
Alternate
19
Adjust DHW
Temperature Setting
0°F (0°C)
1.8°F (1°C)
3.6°F (2°C)
5.4°F (3°C)
99
Vent Length
Long
Short
This water heater includes a service indicator (Service
Soon,
SS
). When selected in the parameter settings, an
SS
code will display on the controller indicating that it is
time to flush and service the water heater.
•
Selection is installers preference based on wa
-
ter conditions or other factors that may influence
the suggested interval of service.
•
See the “Configure Parameter Settings” section
of this manual for selectable service intervals.
•
If Service Soon (
SS
) appears on the controller
display, contact your local service provider to
flush and service the water heater (see 6.3
Flushing the Heat Exchanger)
•
Service Soon will appear again based on the
selected service interval.
4.10.2 Service Indicator (Service Soon,
SS
)
To reset Service Soon (
55
)
Press the ON/OFF button 5 times
NOTE: Service Soon (
55
) will display on the
controller again when the water heater reaches
the interval selected in the parameter settings.
Figure 34
5 times
SS
1
Low Activation Mode must be in the ON position (15A) if crossover recirculation is selected (Parameter 04C).
*Smart-Circ™ recirculation 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, 17A (default) will not activate the pump for the first 24 hours. 17b will activate the pump based
on the comfort / economy time interval selected for the first 24 hours.
**04b (Default) Dedicated Recirculation.
***Air Handler (AH) not used with REP199/REP160.
