MV HEATING SO15 0LP MV Rotary Control Non Plateau Air Heaters Instruction Manual
- July 21, 2024
- MV HEATING
Table of Contents
MV HEATING SO15 0LP MV Rotary Control Non-Plateau Air Heaters
Specifications
- Product: MV Rotary Control Non-Plateau Air Heaters
- Model: Ed. 1.02
- Contact: +44 (0)23 8052 8777
- Manufacturer: MV Heating UK Ltd
- Address: Unit 6, Second Avenue Business Park, Millbrook, Southampton SO15 0LP
Product Usage Instructions
Key Features
The MV Rotary Control allows for variable heat settings and fan speed control using the control knob and buttons.
Variable Output Mode
To adjust the heat setting or fan speed, twist the control knob to the desired level. Use the Variable Output Button to toggle between high and low settings.
Fan Mode
To activate the fan for cool air circulation, press the Fan Only Button.
Thermostatic Mode
Switch to thermostatic mode by pressing the Temperature Button. The heater will automatically enter a cool-down cycle once the selected temperature is reached.
Installing the Control
- Remove the rotary knob carefully using a small flat-bladed screwdriver.
- Fix the control to a flat, clean surface using the provided fixing screw and mounting pad.
- Ensure the control is easily visible and accessible for operation.
- Reattach the rotary knob, ensuring correct orientation.
- Connect the plugs on the rotary loom to the corresponding plugs on the wiring harness, matching colors and orientation.
Fault Information
If a fault is detected, the controller will enter an error state. Count the number of flashes from the indicator light and refer to the provided table for fault diagnosis and resolution.
Key
- Variable Output Button and Indictor Light
- Temperature Button and Indicator Light
- Fan Only (Cold Air) Button and Indicator Light
- Control Knob
- Fixing Screw Hole (Located underneath control knob)
The rheostat (or rotary) control works by twisting the control knob to the desired heat setting, and using the buttons listed to determine the heaters’ function. Variable output is simply high to low heat/fan speed. The temperature button switches the heater to thermostatic mode (the heater will then switch to a cool-down cycle automatically once it has reached the selected temperature). The fan button only switches the fan on for cool air.
Installing the Control
Remove the rotary knob by gently lifting it away using a small flat-bladed
screwdriver. Use the fixing screw and mounting pad provided to fix the control
to a suitable, flat, and clean surface. It is best installed so that it can be
seen and operated easily to identify working conditions and for ease access.
Once mounted, simply push the rotary knob back into position, paying attention
to its orientation. Connect the two plugs (black and clear) on the rotary
loom, to the corresponding plugs on the wiring harness, making sure they are
colour to colour, and the correct orientation.
Plug Connections
Variable Output Mode
In variable output mode, once turned on the heater will continue to run until it is manually turned off again. Whilst turned on, the rotary knob is used to select the power output (fan speed) of the heater. The higher the fan speed, the greater the volume of hot air will be pushed into the heating space.
- Press the top button to turn the heater on, and the red light will appear.
- Use the rotary knob to control the heaters fan speed from high to low (the higher the fan speed, the quicker the vehicle will get warmer)
- Press the top button again, to switch the unit off – The red light will switch off and the unit will then go into a two-minute cool-down cycle.
Fan Mode
In fan-only mode, once turned on the heater will only run the fresh air fan until it is manually turned off again. Whilst turned on, the rotary knob is used to select the fan speed. The higher the fan speed, the greater the volume of air will be pushed into the heating space.
- Press the bottom button to use the fan only mode. The green light will appear.
- Use the rotary knob to alter the fan speed from high to low.
- Press the bottom button again to turn the fan off, the green light will switch off and the unit will shut down.
Thermostatic Mode
In thermostatic mode, the heater will run until it has reached the set temperature and (version dependent) will either switch off completely or continue to run the fan until the temperature has dropped significantly that the heater will then relight and start again. The unit will continue to cycle until the controller is switched off completely, by pressing the thermostat button again, so the light disappears. Temperature will vary depending on where the temperature probe is installed, and how much ambient air flow it has.
- Press the middle button to turn the heater on, and the amber light will appear.
- Use the rotary knob to control the temperature from high to low. (35°C –5°C respectively).
- This process will continue until you press the middle button again, to switch the unit off – The amber light will switch off, and the unit will go into a two-minute cool-down cycle.
- Once the heater reaches the temperature set on the rotary knob, it will shut itself down.
- Once the temperature has dropped again, the heater will turn back on, and start to heat again.
Fault Information
If the heater detects a fault, the controller will go into an error state. The
current light (red, amber, green depending on what mode the unit is in) will
switch off, and begin to flash a number of times, followed by a pause.
To determine the fault, count the number of flashes and refer to the table
below to rectify the fault.
Fault Codes
Code on Digital Timer| ****
Error Description
| Error Light (Flashing Light) on
Rotary Control
---|---|---
00| No Fault| F01
10| Second start failure|
20| Heater does not light in time| F02
21| Combustion termination|
30| Voltage too high| F03
31| Voltage too low|
A9| Voltage too low|
41| Overheated| F10
50| Flame sensor open circuit| F05
51| Flame sensor short circuit|
52| Hot air sensor open circuit|
53| Hot air sensor short circuit|
54| Hot air sensor overheated|
65| Inside temperature sensor broken circuit| F06
66| Inside temperature sensor short circuit|
68| Outside temperature circuit broken circuit|
69| Outside temperature circuit short circuit|
70| Fuel pump short circuit| F07
71| Fuel pump broken circuit|
80| Fan broken circuit| F08
81| Fan short circuit|
82| fan speed too low|
83| Fan speed too high|
84| Fan speed measurement fault|
90| Glow pin open circuit| F09
91| Glow pin short circuit|
92| Glow pin high resistance|
93| Glow plug drive open circuit|
a2| Overheating| F10
b4| Overheating or sensor fault| F11
b5| Overheat sensor fault|
c0| Hydro only – blower relay open circuit| F12
c1| Hydro only – blower relay short circuit|
c4| Preheating temperature broken circuit|
c5| Preheating temperature short circuit|
d0| Crystal oscillator in ECU broken| F13
d1| Fault information storage failure|
d3| Maintenance reminder|
–| Earthing Issue| Constant Flash
–| Connection Issue| Traffic Light
FAQ
What should I do if my heater is not responding?
If your heater is not responding, check the power supply and ensure all connections are secure. If the issue persists, refer to the fault codes in the manual for troubleshooting steps.
How do I switch between different modes of operation?
To switch between variable output mode, fan mode, and thermostatic mode, use the corresponding buttons on the control panel in conjunction with the control knob.