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CONTROLS

A111C/A112H

English/03-2004

USER MANUAL

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Summary of Contents for A111C

Page 1: ...CONTROLS A111C A112H English 03 2004 USER MANUAL ...

Page 2: ...ON USER INTERFACE DESCRIPTION SELECTING UNIT OPERATING MODE AND SET POINT SELECTING THE TEMPERATURE SET POINT CATEGORY CLOCK AND TIME BANDS AS AN OPTION PARAMETERS STATUS AND READINGS PROGRAMMING DEFROST MANAGEMENT ALARM CODES REMOTE SENSORS AS AN OPTION THERMOSTATIC FREECOOLING OPTION STANDARD GUIDELINES TO LENNOX EQUIPMENT ...

Page 3: ...lead shielded cable If a remote sensor is requested as an option the terminal thermostat can be installed in a different place from the room to be conditioned Since this type of control panel is factory configured for each application an identification code located on the control panel of the terminal itself has been given to each panel Any query or request for a replacement of the control panel m...

Page 4: ...rminals on the rear shell of the box as indicated in and in electrical diagram Sub base Sub base Maximum length allowed is 150m T T To PCB in electrical panel of air conditioning unit For correct installation the following warnings must be heeded Always disconnect the power supply before performing any operations on the board during assembly maintenance or replacement The terminal should be fasten...

Page 5: ...nds the display will show up the software version SIDE BUTTONS These buttons allow access to all the other functions of the control Indicates change value of parameters THE CONTROL IS ACTIVE 5 SECONDS AFTER THE UNIT POWER IS SWITCHED ON Time band indication Set point display Mode absence comfort night Temperature probe measurement Indicates set point display Heating ON Unit OFF Indicates operating...

Page 6: ...on the display Pressing the mode button repeatedly you can change the unit operating mode COOL The unit is working on cooling mode when compressor is working the symbol will appear on the display HEAT The unit is working on heating mode when compressor or electrical heater are working the symbol will appear on the display AUTO The system automatically switches from cooling to heating mode dependin...

Page 7: ...symbol It is the reference room desired temperature set point used for the rest of the categories 2 Brief absence set point indicated by the symbol Typically used when the room is not occupied for a short period of time 3 Night time set point indicated by the symbol The room is occupied yet a lower level of comfort is required How to change the desired temperature set point for the different categ...

Page 8: ...We Wednesday Th Thursday Fr Friday Sa Saturday Su Sunday 8 00 8 00 22 00 22 00 8 00 14 00 16 00 18 00 20 00 22 00 8 00 14 00 16 00 18 00 20 00 22 00 8 00 14 00 16 00 18 00 20 00 22 00 t1 t2 t3 t4 t5 t6 Mo Monday Tu Tuesday We Wednesday Th Thursday Fr Friday Sa Saturday Su Sunday Press clock to accept This Terminal Thermostat with clock function is a programmable terminal programming the time bands...

Page 9: ... day To set a program press clock for 5 seconds t1 will show on the display Continue to program the remaining days Set the start hour and minutes for the first band with the and buttons and press clock to accept Use and buttons to scroll to the another days which will flash in turn thus extending the same program to the selected days Confirming the days using the clock button The time interval ide...

Page 10: ...nged using the and buttons and will remain for three hours Press resume button to return to time band operation before the three hours elapse A Change the desired set point of the current time band for three hours HRS The set point will remain until resume button is pressed to return to time band operation Press hold set B Change the desired set point for an unlimited period Change set point using...

Page 11: ...ume button or wait for 1 minute the final 15 seconds are signalled by the flashing of the characters on the display All modifications on the operating unit parameters must be carried out by qualified personnel Incorrect programming of the parameters may cause damage to the unit And consequently the loss of guarantee of the unit clock set mode fan hold resume clock set mode fan hold resume clock se...

Page 12: ... heater will turn on as figure shows R4 0 5ºC R3 1ºC R3 1ºC R4 0 5ºC R9 1ºC R8 2ºC 22 5ºC 23 5ºC 21 5ºC 20 5ºC 24 5ºC Electrical heater compressor MODIFICATION OF SET POINT VALUE To modify the set point value see page 5 on this manual MIN MAX UNIT VAR DEF VALUES DESCRIPTION COD S4 12 12 C F 0 5 0 Regulation probe calibration Value to be added to subtracted from the value measured by the temperatur...

Page 13: ...ours threshold It establishes the number of indoor fan operating hours beyond which the maintenance intervention signal alarm thf is activated F4 0 disables this function alarm will not be visualized F4 values from 1 to 10 number of hours x 1000 of indoor fan operating hours 10 0 H7 0 2 1 It establishes what is displayed on the field in the top right of the display H7 0 Shows the outdoor temperatu...

Page 14: ... to the beginning of next it could be from 14 to 35 minutes depending on external conditions MAXIMUM DEFROST DURATION 10 minutes is the maximum time defrost cycle will be on POWER BOARD OF THE SYSTEM AT THE ELECTRICAL BOX OF THE AIR CONDITIONING UNIT The board features a signaling green LED which flashes when unit is electrically supplied The control features a minimum run timer which ensures that...

Page 15: ...ture regulation probe error or connection cable broken E 3 E DF The defrost process has exceeded the maximum time specified of 10 minutes and has not ended Outdoor coil temperature probe error or connection cable broken MAN AUT AUT AUT AUT AUT L OP Low pressure protection After three automatic resets in one hour becomes to be a manual reset MAN EFFECTS ACTION Alarm visualization Alarm visualizatio...

Page 16: ...re available two types of remote sensors REMOTE DUCT SENSOR The sensor should be located at the return air duct recording the room temperature continuously REMOTE AMBIENT SENSOR The sensor should be located at the room which has to be conditioned Both sensors should be used when the terminal thermostat can be located on a position where the room temperature could not be measured with accuracy Exam...

Page 17: ... the safety of the unit One of them for 4ºC closes the gate in order to prevent freezing The other one for 10ºC opens the gate to take advantage from outside air These thermostats only work when the freecooling is enabled Programming option is included on it You can connect as an option remote sensors To use this option an outdoor probe is connected If it does not work properly please check the ju...

Page 18: ...ating instructions contain useful and important information for the smooth operation and maintenance of your equipment The instructions also include guidelines on how to avoid accidents and serious damage before commissioning the equipment and during its operation and how to ensure smooth and fault free operation Read the operating instructions carefully before starting the equipment familiarise y...

Page 19: ...18 ...

Page 20: ...NOXFRANCE tél 33164762323 fax 33164763575 e mail marketing france lennoxfrance com LENNOXDEUTSCHLANDGmbH tél 49694209790 fax 496942097940 e mail info de lennoxdeutschland com LENNOXBENELUXB V tél 31332471800 fax 31332459220 e mail info lennoxbenelux com LENNOXPOLSKASp zo o tél 48228322661 fax 48228322662 e mail info lennoxpolska pl LENNOXPORTUGALLDA tél 351229983370 fax 351229983379 e mail info le...

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