Rinnai
27
Commercial Heat Pump OIM
USER TERMINAL
The user terminal includes the display and keypad, comprising four buttons that, when pressed alone or combined
with other buttons, access the operations available for the ‘User’ profiles. The heat pump uses the user terminal to
display the alarms, the main variables and to set the unit set points.
Key
1
Keypad
2
Main Field
3
Device status and operating mode icons
Keypad
Ensure the controller unit is not displaying the ERR indicator once unit has been switched on.
Button
Description
Function
UP
•
When scrolling - go to the previous parameter
•
In programming mode - increase the value
DOWN
•
When scrolling - go to the next parameter
•
In programming mode - decrease the value
•
Main menu:
- press briefly - unit dashboard display
- press and hold (3 secs) - access User parameters (set point, unit ON / OFF)
ALARM
•
Pressed briefly - display active alarms and mute buzzer
•
Pressed and held (3 secs) - reset alarms
PRG
•
When scrolling - access parameter programming mode
•
In programming mode:
- press briefly - confirm value
- press and hold (3 secs) - return to the main menu
Icons
Icon
Function
On
Flashing
System pump
Active
In manual operation
Source device status (pump/
fan)
Active
In manual operation
Compressor status
Active
In manual operation
Frost protection heater
Active
-
Operating mode
Heating
-
Cooling
High Water Temperature
Defrost
Dripping after Defrosting
Free cooling
Service
Service request on
exceeding operating hours
Serious alarm, action required by
qualified personnel
The standard display shows:
•
On the top row: the delivery water temperature;
•
On the bottom row, when the unit is on, the tank water temperature; when the unit is off, it shows ‘OFF’.
The user terminal only provides access to the basic configuration parameters, such as set point and switching unit
on and off.
1
2
3
INSTALLATION
