Rinnai HE Series How To Use Manual page 3

Temperatures Available with a Controller
The water heater can deliver water at only one temperature se ng at a me. The available temperatures are
provided below. A temperature lower than 98° F (37° C) can be obtained at the tap by mixing with cold water.
To change the temperature scale from Celsius to Fahrenheit or vice versa, press and hold the "On/Off" bu on
for 5 seconds while the water heater is OFF.
Fahrenheit °F
Celsius °C
* Temperature se ngs from 125-140 °F (52-60 °C) are available by se ng SW6 in DIPSW 1 to ON. These
models have a default maximum temperature of 120° F (49° C) and an op on (SW6) to increase the
maximum temperature to 140 °F (60 °C).
** These se ngs require the MCC-91-2 controller. When the MCC-91-2 controller is connected, these higher
temperatures are available on all controller models in the system. Use of an MCC-91-2 controller in a
residen al dwelling will reduce the warranty coverage to that of a commercial warranty applica on.
WARNING
These temperatures are sugges ons only:
Alternate Temperature Se ngs
A different range of temperature se ngs is available by se ng SW2 and SW3 in the DIPSW 2 to ON. The table
below shows the se ngs available with the MC-91-2 and MCC-91-2 controller.
WARNING
Fahrenheit °F
Celsius °C
Temperature Se ngs Available
98 100 102 104 106 108 110 115 120
37 38 39 40
DO NOT adjust the other switches unless specifically instructed to do so.
MC-91-1, MCC-91-1, MC-100V-1, and BC-100V-1 controllers are not compa ble with
Alternate Temperature Se ngs. Alternate Temperature Se ngs are for commercial
applica ons only.
DO NOT use the MC-91-1, MCC-91-1, MC-100V-1, or BC-100V-1 controllers when SW2
and SW3 in DIPSW 2 are in the ON posi on.
Alternate Temperature Se ngs Available
110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185
43 46 49 52
MC-91-2
41 42 43 46
Kitchen 120 °F (49° C)
Shower 98 - 110 °F (37 - 43 °C)
Bath Fill 102 - 110 °F (39 - 43 °C)
54 57 60 63
MCC-91-2
KBD Series Manual
125 130 135 140
* * *
49 52 54 57
66 68 71 74
150 160 185
* ** ** **
60 66 71 85
77 79 82 85