Rinnai ThermaCirc360 RUR199i Installation And Operation Manual page 62

ThermaCirc360™ Recirculation (Crossover Mode)
Plug/Filter Assembly (Crossover Mode)
Remove the bypass plug and replace it with the bypass filter (Packaged with the Thermal Bypass Valve.)
1. Remove threaded cap and Bypass Plug
assembly from the hot water outlet at
the base of the water heater.
2. Remove Bypass Plug from the threaded
cap.
3. Assemble bypass filter to the threaded
cap.
4. Assemble threaded cap and Bypass filter
assembly to the hot water outlet at the
base of the water heater.
Parameter Settings
Refer to the parameter setting section of this manual for instructions on how to access and change parameter settings.
SETTING SETTING
# DESCRIPTION
Recirculation
04
Settings
Recirculation
05
Modes
04
Recirculation Settings
Crossover Mode (Long Loop): Adjust parameter setting to 04C for loop length of 201 ft (60 m) to 400 ft (122 m)
with 3/4 in. pipe or for 51 ft (15 m) to 100 ft (30 m) with 1/2 in. pipe.
Crossover Mode (Short Loop): Adjust parameter setting to 04d for loop length of less than 200 ft (60 m) with 3/4
in. pipe or for less than 50 ft (15 m) with 1/2 in. pipe.
Pipe Diameter
Short Loop
Long Loop
05
Recirculation Modes
Comfort (Factory Default): Adjust parameter setting to 05A for comfort mode. This mode cycles the pump more
frequently, ensuring the loop temperature remains higher (but also uses more energy).
Economy: Adjust parameter setting to 05b for Economy mode. This mode cycles the pump less often, using less
energy to maintain the circulation loop temperature.
62
A
No
Recirculation
Dedicated Mode
Comfort
Maximum Pipe Length*
3/4 in.
～200 ft (60 m)
201 ft (60 m)～400 ft (122 m) 51 ft (15 m)～100 ft (30 m)
Rinnai Tankless Water Heater Installation and Operation Manual
Note: Do not discard bypass plug.
Keep in safe place incase system is
changed from crossover mode to
dedicated mode.
SELECTION
Recirculation
Long Loop
Economy
1/2 in.
～50 ft (15 m)
c
Crossover Mode
Short Loop
(*Take equivalent
elbow lengths into
consideration when
calculating pipe length.)