A.T.M.Xpert-2C

1- A.T.M.Xpert-2C provides two out puts, to operate two Air-Conditioners.
2- Both out puts are available in cyclic way (one output at a time) after a preset time.
3- Pre set time is selectable by Dip switch-4 (5Hrs. or 10Hrs.). Microprocessor calculates the Run Time. If Power fails, controller saves the current run time. After power re-gain, A.C. runs for the rest of the cycle time.
4- As power up the controller Relay-1 is switched ON after the “on delay” of approximately 3 minutes, LED-1 (yellow) blinks during on delay time. LED-1 becomes off when Relay-1 gets start.
5- Switch-1 (quick start) is used to by-pass on delay time.
6- After completing the 5Hrs. or 10Hrs. cycle time (as selected by Dip switch-4) Relay-1 becomes switched off, and Relay-2 becomes on with 15 seconds delay, for the next cycle. During this 15 seconds delay LED-1 (yellow).
7- Switch-2 (unit ON/OFF) is used to switch ON and OFF the timer function (keep pressed for >5 seconds for both logics). No output is available in OFF mode.
8- LED-2 (red) glows, when timer is OFF.
9- Dip switch-3 is used to select AUTO or MANUAL function. In AUTO mode, controller works in cyclic way with equal time duration in both channels. But in manual mode, it provides only one output permanently (as selected by Dip switch-3). This single output also behaves in cyclic way with un-equal time duration, 5 Hrs. ON & 1Hr. OFF, or 10Hrs.ON & 2Hrs.OFF in NORMAL position. And 5 minutes ON & 1minute OFF, or 10 minutes ON & 2 minutes OFF in DEMO. position. During OFF cycle, O/P is not available, but both LED-1 & 2 blinks alternately, in order to represent OFF cycle.
10- Dip switch-2 is used to select OUT PUT-1 or OUT PUT-2. (This switch is operational, when Dip switch-3 will be in manual mode).
11- Dip switch-1 is used to select NORMAL or DEMO. function. In normal mode, change over time is 5Hrs. and 10Hrs. (as selected by Dip switch-4), but, in Demo mode, 5Hrs. becomes 5 minutes and 10Hrs. becomes 10 minutes.

NOTE-1, To re-set the run time counter, keep press the switch-1 (quick start) for >5 sec. or until both LED-1&2 glows for a moment (this function is available in routine mode, not in time delay mode). Time counter of both sections becomes re-set, and system starts from O/P-1.

NOTE-2, In manual mode only, (when any output is selected) and power becomes fail during OFF time, If OFF time was spent >50 %, controller keeps OFF the selected O/P for balance period after power re-gain. If OFF time was spent <50 %, controller starts the selected O/P from zero time after power re-gain.

NOTE-3, In manual mode only, (when any output is selected) and power becomes fail during ON time, If ON time was spent >75 %, controller starts the selected O/P from zero time after power re-gain. If ON time was spent <75 %, controller provides the O/P for balance period.

In manual mode only, (when any output is selected) and power becomes fail during ON time, If ON time was spent >75 %, controller starts the selected O/P from zero time after power re-gain. If ON time was spent <75 %, controller provides the O/P for balance period.

SERVER-2

• This Timer is use for the automatic change-over between a combination of two Air–conditioners.
• Both Air–conditioners works as one running and one stand-by.
• Two cores power cord is fixed in the timer to connect with main supply (220V AC ± 15% 50 Hz). Two independent terminals are provided for the connection of both Air–conditioners and their separate power supply. User can connect both Air–conditioners either on a single phase supply source by looping or can connect with any two separate phases of a 3 phase power supply.
• Both outputs have up to 15 Amps. load carrying capability to operate up to 2.0 Tr. Air-conditioners.
• CHANGE-OVER after every 2 or 4 hours (field settable).
• DEMO. mode available (5 minutes per cycle).
• 2⁰C & 3⁰C Differential temperature (Compressor re-start temperature) selection.
• Individual and Group mode selection.

In Individual mode, both Air–conditioners work in cyclic way only. But, in Group mode, they work as master and slave way. If master is not able to achieve desire room temperature, slave helps to achieve the target. Slave A.C. switch on at & above Room temperature + Differential temperature + 3⁰C. And switch off at Room temperature + Differential temperature.

• STARTING DELAY of 2 minutes with flashing L.E.D. indicator.
• Timer ON/OFF Switch, with OFF indicator. Keep press to switch till 5 seconds for both modes.
• SET/ENTER Switch, to enter in to Program mode to set desire room temperature, then save and exit by pressing this switch again.
• INCREASE Switch, to increase set temperature value between 16⁰C to 27⁰C. Also this switch uses to lock the key board. Keep pressed till 5 seconds to lock. Display will show “LO” when locked.
• DECREASE Switch, to decrease set temperature value between 27⁰C to 16⁰C. Also this switch uses to un–lock the key board. Keep pressed till 5 seconds to un–lock. Display will show “UL” when un–
• Temperature achieved indicator, so that user can understand why A.C. became cut-off.
• The controller saves the last settings in its memory.
• L.E.D. indicators for A.C.1 on & A.C.2 on.
• High Room Temperature Alarm with L.E.D. indicator. This alarm creates at & above 32⁰C room temperature. Potential free relay contacts (5 Amps.) are provided for the connection of external alarming device.
• Temperature Sensor – 10 KΩ (N.T. type).
• If temperature sensor becomes fail (open or short circuit), display shows “SF” and all out puts becomes off.
• HEAT RESISTANT Teflon wires are used in load lines.
• Field wiring terminals – 30 Amps. Bakelite in both channels.

Temperature display (2 Digits).

1. Set Temperature range:- 16⁰ C to 27⁰C  (display blinks).
2. Room Temperature display range:- 00 to +99⁰ C  (display glows).
3. Output cut off at set point & cut in again at +2⁰ C or +3⁰ C in set value.

Note: – Field wringing direction is available on the Timer sticker.

Dip switch (4 way).

• For selection of Demo. or Normal mode. (in demo. mode temperature related features becomes disable).
• For selection of change-over time 2 or 4 hours.
• For selection of differential temperature +2⁰ C or +3⁰ C.
• For selection of Group or Individual operation.

SERVER-3N4

• This Timer is use for the automatic change-over between a combination of 3 or 4 Air–conditioners.
• Air–conditioners works as either two running and one stand-by or three running and one stand-by as per setting.
• Two cores power cord is fixed in the timer to connect with main supply (220V AC ± 15% 50 Hz). Four independent terminals are provided for the connection of all Air–conditioners and their separate power supply. User can connect all Air–conditioners either on a single phase supply source by looping or can connect with any separate phase of a 3 phase power supply.
• All outputs have up to 15 Amps. load carrying capability to operate up to 2.0 Tr. Air-conditioners.
• CHANGE-OVER after every 2 or 4 hours (field settable).
• DEMO. mode available (5 minutes per cycle).
• 3 or 4 A.C. selection.
• Individual and Group mode selection.

In Individual mode, all Air–conditioners work in cyclic way only (one by one). But, in Group mode, they work as master and slave way like SERVER-2. If master is not able to achieve desire room temperature, slave helps to achieve the target. Slave A.C. switch on at & above Room temperature + Differential temperature + 3⁰C. And switch off at Room temperature + Differential temperature.

• STARTING DELAY of 2 minutes with flashing L.E.D. indicator.
• Timer ON/OFF Switch, with OFF indicator. Keep press till 5 seconds for both modes.
• SET/ENTER Switch, to enter in to Program mode to set desire room temperature, then save and exit by pressing this switch again.
• INCREASE Switch, to increase set temperature value between 16⁰C to 27⁰C. Also this switch uses to lock the key board. Keep pressed till 5 seconds to lock. Display will show “LO” when locked.
• DECREASE Switch, to decrease set temperature value between 27⁰C to 16⁰C. Also this switch uses to un–lock the key board. Keep pressed till 5 seconds to un–lock. Display will show “UL” when un–
• Temperature achieved indicator, so that user can understand why A.C. became cut-off.
• The controller saves the last settings in its memory.
• L.E.D. indicators for A.C.1on, A.C.2 on, A.C.3 on & A.C.4 on.
• High Room Temperature Alarm with L.E.D. indicator. This alarm creates at & above 32⁰C room temperature. Potential free relay contacts (5 Amps.) are provided for the connection of external alarming device.
• Temperature Sensor – 10 KΩ (N.T. type).
• If temperature sensor becomes fail (open or short circuit), display shows “SF” and all out puts becomes off.
• HEAT RESISTANT Teflon wires are used in load lines.
• Field wiring terminals – 30 Amps. Bakelite in all channels.

Temperature display (2 Digits).

1. Set Temperature range:- 16⁰ C to 27⁰C  (display blinks).
2. Room Temperature display range:- 00 to +99⁰ C  (display glows).
3. Output cut off at set point & cut in again at +2⁰ C or +3⁰ C in set value.

Note: – Field wringing direction is available on the Timer sticker.

   Dip switch (4 way).

• For selection of Demo. or Normal mode. (in demo. mode temperature related features becomes disable).
• For selection of change-over time 2 or 4 hours.
• For selection of 3 or 4 A.C.
• For selection of Group or Individual operation.

SHELTER CARE-2D

INTELLIGENT µ CONTROLLER (1Ø & 3Ø)

(SHELTER CARE – 2D)

A-        Change-over between the combination of 2 Air-conditioners.

As power-up the Controller, all segments and all program LEDs glows together for 3 seconds. After 3 seconds, 3 digits 7 segment display shows present room temperature in step of 1⁰C with LED room temp. and current mode (Aut / AC1 / AC2) in cyclic way, @ 5 seconds.

B-        MODE Key :- (Scrolls between 2 steps).

1-         Demo. mode, In this mode, cycle time is fixed for 5 Minutes for both AC-1 & AC-2. Display shows “tst” until the user does not change the mode, demo to normal.

Note 1:- In this mode , all below said functions / features are dis-able.

2-        Normal mode, In this mode, when change-over demo to normal, display shows “nor”  momentary, then continuously Room Temp. and current mode in cyclic way.  Change over time for both A.Cs. depends on setting of cycle time.

Note 2:-When change-over from Demo Mode to Normal Mode, the on duty AC starts from schedule time, and other AC becomes stand-by till the end of running AC cycle.

Note 3:- during programming mode, the mode key uses to go backward.

1. PROGRAM Key :- (scrolls between 09 steps with respective LED indications.)

Step-1,            LED (Room Temp.) becomes “ON” and display shows settings of

“room temp.” (20⁰C to 30⁰C) in step of 1 dig. Default setting is 23⁰C.

Running AC cut off at set point & cut in as per setting of differential temp.

Step-2,            LED (Differential Temp.) becomes “ON” and display shows setting of “differential temp.” (+2, +3 & +4⁰C). Default setting is +2⁰C.

Step-3,            LED (H.R.T. Alarm) becomes “ON” and display shows setting of

“Alarm temp.” (32 to 35^oC). Default setting is 32^oC. Alarm Relay becomes ON at set temp. & above. This relay never ON at below set temp.

Step-4,            LED (Cycle Time) becomes “ON” and display shows setting of “change-over time” in order of One hour per step (01Hr. to 12Hrs.) Default setting is 04 Hrs. After programmed “time” controller toggles AC-1 to AC-2 or AC-2 to AC-1.

Step-5,            LED (Alarm Time) becomes “ON” and display shows setting of “alarm time” (10 to 20 minutes). A.C. fail alarm relay activates, during under current conditions.

Default setting is 15 minutes.

Step-6,            LEDs (RT & DT) become “ON” together and display shows setting of “over current limit” (10 to 18 Amps.) If running current is more then set value, controller will switch off the running A.C. and respective A.C.Fail relay will become ON. The stand-by A.C. will switch ON. Default setting is 16 Amps.

Step-7,            LEDs (DT & HRT) become “ON” together and display shows setting of “under current limit” (03 to 06 Amps.) If running current is less then set value, controller will switch off the running A.C. and respective A.C.Fail relay will become ON. The stand-by A.C. will switch ON. Default setting is 03 Amps.

Step-8,            LEDs (HRT & CT) become “ON” together and display shows setting of “free cooling temp. value” (01 to 04 Deg.) If ambient temp. is less then 1, 2 or 3 deg. Celcious then programmed room  temp., controller will  not switch ON the air-conditioners. It will switch on the FREE COOLING RELAY. Default setting is 02 Deg. This relay will cut off at programmed room temp. and cut in at differential temp.

Step-9,            LEDs (CT & AT) become “ON” together and display ask for setting of programmed values or default values. “YES” for default values and “no” for programmed values.

NOTE :-       The stand–by AC cut in at setting of room temp.+ differential temp.+3^oC in        parallel  of running AC (if it is not cooling) & Cut off by minus 3^oC. In this case Stand-by AC switch ON after the time delay of 30 sec. after sensing the setting of room temp.+ differential temp. +3^oC.

1. Up Key :- By pressing this key, required value increases. Keep pressed for 3 sec. to lock the key board.

1. Down Key :- By pressing this key, required value decreases. Keep pressed for 3 sec. to un-lock the key board.

1. Enter Key :– By pressing this key, programmed value stores & function skips for next setting.

1. AUTO / MANUAL key :- (scrolls in 3 steps), “Aut” , “AC1” , “AC2”.

“Aut” normal function.

“AC1” only with temp. controlling.

“AC2” only with temp. controlling.

NOTE:- If power fails, all settings remain same (last memory stores). It saves current status after every 05 minutes.

1. 1- When AC-1 is in ON cycle, and during this cycle, under current signal is found, AC-1 will turn OFF after a time delay of 10 to 20 mins. as programmed, Now, AC-2 ON & AC-1 fail alarm relay will turn ON Permanently. The toggling action will stop. It will re-set by power cut off. Temp. control will be there.

2- When AC-1 is in ON cycle, and during this cycle, over current signal is found, AC-1 will turn OFF after a fixed time delay of 06 sec., Now, AC-2 ON & AC-1 fail alarm relay will turn ON Permanently. The toggling action will stop. It will re-set by power cut off. Temp. control is there.

1. 1- When AC-2 is in ON cycle, and during this cycle, under current signal is found, AC-2 will turn OFF after a time delay of 10 to 20 mins. As programmed, Now, AC-1 ON & AC-2 fail alarm relay will turn ON Permanently. The toggling action will stop. It will re-set by power cut off. Temp. control will be there.

2- When AC-2 is in ON cycle, and during this cycle, over current signal is found, AC-2 will turn OFF after a fixed time delay of 06 sec., Now, AC-1 ON & AC-2 fail alarm relay will turn ON Permanently. The toggling action will stop. It will re-set by power cut off. Temp. control is there.

NOTE:- If, conditions in points “H” & “I” becomes normal, before ending the time delay of either 10 to 20 mins. or 06 sec. the said process disables. If both ACs fails, both alarms will be available.

1. Potential free alarm contacts (AC-1 fail, AC-2 fail, HRT & P.F.) are available. N/O in healthy conditions, and N/C during failures.

1. If sensor fails, (open or short) display shows “SF” permanently, and all the functions related with sensor becomes disable till get it correct. Controller works as a simple timer only, 45 mins. ON and 15 mins. OFF, in cyclic way. The HRT alarm relay activates.

1. If memory fails, display shows “EPF” (for few sec.) after every 05 minutes and controller does not update new entries till get it correct.

1. If input supply goes down to 180 volts or goes up to 260 volts in single phase and goes down to 350 or goes up to 450 in three phase or there is phase loss / reverse sequence, the controller will switch off all the out puts, and the display will show “PSP” ( power supply problem ).

THREE PHASE CYCLIC TIMERS – SERVER-2  &  SERVER-3

THREE PHASE SERVER-2

(FOR THE COMBINATION OF 2 THREE PHASE A.C.)

AND

THREE PHASE SERVER-3

(FOR THE COMBINATION OF 3 THREE PHASE A.C.)

These cyclic timers have same features as in single phase, with additional below said features.

• THE CONTROLLER IS ASSEMBLED IN A POWDER COATED, WALL MOUNTING TYPE MATELLIC ENCLOSER. (L /Ht.:13, W:12 & D:4.25 INCHES).
• THE INCOMING 3 PHASE POWER SUPPLY (R,Y,B & NEU.) IS PROVIDING THROUGH THE IN–BUILT 4 POLE M.C.B.
• RED, YELLOW & BLUE L.E.D. (10mm) INDICATORS ARE USED TO DISPLAY 3 PHASES.
• “START” (PUSH TO ON) SWITCH WITH “UNIT–ON” (RED L.E.D.) INDICATOR.
• “STOP” (PUSH TO OFF) SWITCH WITH “UNIT–OFF” (GREEN L.E.D.) INDICATOR.
• FACILITY TO CONNECT THE DEVICE WITH FIRE CONTROLLER.
• IN-BUILT “PHASE MONITOR / PREVENTOR” TO PROTECT 3 PHASE INDUCTIVE LOAD DURING ABNORMAL POWER CONDITION. SEPARATE INDICATORS FOR HEALTHY POWER, PHASE LOSS / MISSING & REVERSE PHASE SEQUENCE ARE PROVIDED.
• FITTED WITH “MEMORY” ON / OFF SWITCH. WHEN SWITCH IS SET AT ON POSITION, AND POWER BECOMES CUT–OFF, THE CONTROLLER REMEMBERS THE LAST STATUS OF THE DEVICE TILL POWER RE–GAIN. IF SWITCH IS SET AT OFF POSITION, CONTROLLER DOES NOT REMEMBER ANY STATUS AND KEEPS THE DEVICE AT STAND–BY MODE AFTER POWER RE–GAIN. THE USER WILL HAVE TO PUSH THE START BUTTON TO SWITCH ON THE DEVICE AGAIN.
• THE A.Cs. CONNECT WITH THE DEVICE THROUGH IN–BUILT 3 POLE CONTACTORS.
• THE TAFLON COATED WIRES ARE USED IN LOAD LINES, IN SIDE THE DEVICE.
• IN–BUILT SAFETY FOR THE COIL OF CONTACTOR, AGAINST BURNING CASES AT OVER VOLTAGE.