MJB Controls ACCS-1 User Manual

Suppliers of Air Conditioning & Refrigeration

Control Equipment

Unit 25/205-213 Port Hacking Rd Miranda 2228

Sydney Australia

Phone: +61 2 9522 0334 Fax: +61 2 9522 0337

www.mjbcontrols.com.au sales@mjbcontrols.com.au

User Manual for the

ACCS-1 Digital 7 Day Programmable Thermostat with Zone Control

Congratulations on your purchase of the MJB ACCS-1. This Air conditioning Control System has been designed and manufactured in Australia to provide maximum system efficiency, whilst maintaining an easy to use user interface. The ACCS-1 will provide you with years of trouble free operation, and is covered by a 12-month warrantee against faulty components and workmanship.

 Contents:

 Advanced Features Page 2  Wall Controller Functions

 Setting the time Page 3  Setting the date Page 4

 System Operation

 Manual Operation Cooling Page 4  Manual Operation Heating Page 4  Auto Operation Page 4  Fan Only Operation Page 4  Setting 7 Day programmable time clock Page 5

 Trouble Shooting Page 6

Advanced Features:

Auto-Restart After Power Failure:

Should a power failure occur whilst the air conditioning system is running, the controller will restart the air conditioner in the same mode when the power is restored as it was prior to the power failure.

Temperature Display:

The ACCS-1 is capable of displaying the set point or the room temperature on the LCD display. The factory default is to display set point temperature. In this mode the set point temperature is displayed only. When room temperature is selected, the room temperature is shown until the temperature up or down buttons is pressed then the set point temperature will be shown for 15 sec. After the 15 seconds the display reverts back to room temperature.

Integrated Zoning System:

The ACCS-1 integrated zoning system is capable of controlling up to 4 zones as standard. This allows the occupant full control, of which area or areas of the house or office that they wish to air condition, therefore reducing power consumption and hence operating costs over time.

Auto Defrost Function: (Heating Mode)

At certain outdoor conditions (low temperature) there may be a build up frost on the outdoor heat exchanger. This gradual build up of frost reduces the performance of the air conditioner. The ACCS-1 detects this frost build up and will automatically activate the defrost mode.

Hot Start Function: (Heating Mode, Optional)

When the air conditioning system cycles on in heating mode, the indoor fan is delayed for a short period of time, this allows the indoor heat exchanger to warm up before the air flow starts, thus preventing cold drafts. The hot start feature also activates itself when the system finishes defrosting, enhancing occupant comfort.

7-Day programmable time clock:

The ACCS-1 is equipped with a programmable 7-Day time clock. This feature is used when you might wish to turn on and off the Air Conditioning System at the same time during multiple days of the week. For example, you might wish to have your house cool by the time you get home from work. So instead of leaving it on all day or coming home to a hot house, you just program the time into the wall controller of the ACCS-1 to turn it on at say 5 PM so your house is at the correct temperature for when you get home. You could also set it to turn the Air Conditioning system off at say 1 AM when the outside temperature has reduced and cooling is no longer needed. You can do this every day of the week, Monday to Friday only or Weekends only (Saturday and Sunday). Obviously, if it’s cold outside the reverse is true.

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