York MBC-MBH 25 Installation & Owner's Manual page 8

High static ducted electric heater with plenum
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To set the clock press the CLOCK button for at least 5 seconds, until the CLOCK symbol flashes. Then use the
TIMER buttons to set the desired time. Finally, press the CLOCK button again to enter the time that has been set.
The control is equipped with a timer that can set both start and stop times for the unit. The operational settings that
have been entered on the control will be the ones that the control follows when it starts.
To use the timer function follow these steps;
START
1. Turn the unit on.
2. Press the START button
3. Adjust the clock display to the desired start time
4. Press Enter
The START symbol will be shown on the display,
indicating that a start time has been programmed.
After the unit has either been started or stopped by the timer, the set time will remain in the program, however the
START or STOP button must be pressed again to reset the timer function.
To cancel either the Start or Stop Timer setting press the CANCEL button . To check the time that has been entered
either for starting or stopping the unit, press the appropriate START - STOP button and the time will be displayed.
Press the button again to go back to the clock display.
Sleep mode, which can be used in Cool and Heat modes is a program in the control which is designed to give a
comfortable room environment during sleeping hours.
At the start of sleep mode the unit will operate in cooling or heating mode continuously until the temperature set point
is reached. It will then run for a further 1 hour period at this setting. After this, the temperature set point will automatically
be raised + 1°C every hour (cooling) or lowered – 1°C every hour (heating) until the sleep (shut off) time is reached.
At this time the unit will shut off.
Sleep mode is set by pressing the SLEEP button which will set the shut off time in 30 minute increments, starting
from the time shown on the clock when the SLEEP button is first pressed.
In sleep mode the unit will follow the settings that were entered at the time that Sleep mode was started. Sleep mode
can be cancelled by pressing the CANCEL button at any time.
The control is equipped with a diagnostic information system to report operation of the unit as well as operational
failures. If your remote control does not operate properly first check the polarity of the batteries and that they are in
good working condition. Also make sure that the control is pointed directly at the air conditioning unit when you are
using it, that the distance is a maximum of 10 meters, and that there are no obstacles between the remote control
and the air conditioning unit.
The Diagnostic Information is reported via different flashing patterns of the 3 indicator lights on the unit.
The chart below shows the light patterns for the various operational, protection and failure modes.
This feature is intended to provide information to the consumer as well as for service of the units.
Status
OFF (with power on)
ON (temperature satisfied)
Waiting for delay
Compressor started
Sleep mode
Start timer set
Stop timer set
Low HP temp < 20ºC
Coil temp > 40ºC (cooling)
Overheat > 62ºC (heating)
Anti Freeze
Low voltage
Sensor fail
Cooling fail
Heating fail
Emergency operation
Test operation
Filter
1. In emergency mode, the Power light will flash and the other lights will indicate the operation as above.
2. Lights will flash during the time that the units is held off, due to Low Voltage. If the voltage has passed through the
reset voltage and the unit is waiting for the time delay, the lights will go to normal operation.
3. The lights will show the LED Diagnostic Code even when the unit is off.
CLOCK AND TIMER FUNCTIONS
SLEEP TIMER FUNCTION
DIAGNOSTIC INFORMATION FUNCTION
Power
Timer
Operation
O
O
X
O
X
F-1
X
O
X
X
X
F-2
X
F-3
X
O
X
O
X
F-1
X
F-2
F-2
O
F-1
O
F-2
O
F-3
O
F-3
Note 1
F-1
F-1
F-3
F-3
NOTES
STOP
1. With the unit on.
2. Press the STOP button
3. Adjust the clock display to the desired stop time
4. Press Enter
The STOP symbol will be shown on the display, indicating
that a stop time has been programmed. Lights will indicate
that the unit timer has been set.
Mode
O
Normal Operation
O
Normal Operation
O
Normal Operation
X
Normal Operation
X/O
Normal Operation
X/O
Normal Operation
X/O
Normal Operation
F-1
Protection
F-2
Protection
F-1
Protection
F-2
Protection
O
Protection
F-1
Reset-Call Service Technician
F-2
Reset-Call Service Technician
F-3
Reset-Call Service Technician
Note 1
Operational
F-1
Operational
F-3
Protection
X = ON, O = OFF,
F-1 = ON : 0.5 sec,
OFF : 0.5 sec
F-2 = ON : 1.5 sec,
OFF : 0.5 sec
F-3 = ON : 0.5 sec,
OFF : 1.5 sec

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