43
42
OPERATING INSTRUCTIONS
Temperatures lower than 98°F (37°C) can be obtained at the tap by
mixing with cold water. To change the temperature scale from Cel-
sius to Fahrenheit or vice versa, press and hold the On/Off button
for five (5) seconds while the water heater is OFF.
DANGER
WARNING
CAUTION
AVERTISSEMENT
ATTENTION
DO NOT
adjust the other switches unless specifically instructed
to do so.
These temperatures are suggestions only:
• Kitchen: 120°F (49°C)
• Shower: 98 - 110°F (37 - 43°C)
• Bath Fill: 102 - 110°F (39 - 43°C)
Alternate Temperature Settings
A different range of temperature settings is available by setting
switches # 2 and # 3 of the SW2 dip switch (white) to ON. The
Table 28
shows the settings available with the MC-91-2 and MCC-
91-2 controller.
DANGER
WARNING
CAUTION
AVERTISSEMENT
ATTENTION
MC-91-1, MCC-91-1, MC-100V-1, and BC-100V-1 controllers are
not compatible with Alternate Temperature Settings. Alternate
Temperature Settings are for commercial applications only.
DO NOT
use the MC-91-1, MCC-91-1, MC-100V-1, or BC-100V-1
controllers when dip switches # 2 and # 3 (white) are in the ON
position.
Temperature Options without Temperature Controller
The default temperature setting for this appliance installed without
a temperature controller is 120°F (49°C). If desired, the tempera-
ture setting can be changed to 140°F (60°C) by adjustment of a
switch.
In the SW1 tan switches, set switch # 5 to ON to obtain 140°F
(60°C) water temperature setting. Set switch # 5 to OFF (default)
to obtain 120°F (49°C) water temperature setting. If a temperature
controller is installed, then switch # 5 has no effect on temperature
settings.
Setting Controller to Mute
On the MC-91-2 to eliminate beeps when keys are pressed or to
turn the beeps back on, press and hold both the UP and DOWN
buttons until a beep is heard (approximately five (5) seconds).
Locking the Controller
The MC-91-2 controller can be locked by pressing the Priority
button and the UP button together for five (5) seconds. A beep
will sound confirming that the controller is locked. The display will
alternately show “LOC”, the temperature setting, and a diagnostic
code, if one has been activated. All of the controllers in the system
are also locked.
To unlock the controller, press the Priority button and the UP but-
ton together for five (5) seconds.
Diagnostic Codes
This water heater is designed to display diagnostic codes. If there
is a potential operation concern, refer to the code and remedy on
the next page.
To Display Diagnostic Information
To display the most recent diagnostic information code, press and
hold the “On/Off” button for two (2) seconds on the MC-91-2 con-
troller. While holding the “On/Off” button, press the UP button.
The last nine (9) diagnostic codes will flash one after the other. To
exit this mode, press the “On/Off” and UP button as before.
To enter or exit the maintenance monitor information mode, press
and hold the DOWN button for two (2) seconds and without releas-
ing it, press the ON/OFF button.
To obtain the water flow rate: press the UP or DOWN buttons until
“01” displays. The water flow rate will then appear. For example,
“58” means 5.8 gal/min.
To obtain the outgoing water temperature, press the UP or DOWN
buttons until “02” displays. The temperature will appear in degrees
Fahrenheit.
Table 29
No.
Data
Unit
01
Water flow rate
0.1 gal/min
02
Outgoing water temperature
Degrees Fahrenheit
Temperature Settings Available
Fahrenheit
(
o
F)
98
100
102
104
106 108 110
115
120
125*
130*
135*
140* 150**
160**
185**
Celsius
(
o
C)
37
38
39
40
41
42
43
46
49
52
54
57
60
66
71
85
Table 27
* Temperature settings from 125-140°F (52-60°C) are available by setting switch # 6 to ON in the SW1 tan switches. These models have a default maximum temperature of
120°F (49°C) and an option (switch # 6) to increase the maximum temperature to 140°F (60°C).
** These settings 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 residential dwelling will reduce the warranty coverage to that of a commercial warranty application.
Table 28
Alternate Temperature Settings Available
Fahrenheit
(
o
F)
110
115
120
125
130
135
140
145
150
155
160
165
170
175
180
185
Celsius
(
o
C)
43
46
49
52
54
57
60
63
66
68
71
74
77
79
82
85
MC-91-2
MCC-91-2
Содержание ANSI Z21.10.3
Страница 40: ...40 40 TECHNICAL DATA Wiring Diagram Figure 42 ...
