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AQUATROL ZONE SYNCHRONIZING BOILER RESET CONTROLS

5

69-1979—04

changes temporarily, requiring the 

temperature to be at a comfort level 24 

hours/day.

UNOCC: 

In UNOCC mode, the AQ251 holds the 

temperature of UNOCCUPIED programs 

(LEAVE and SLEEP). This might be used if 

the building will be unoccupied for an 

extended period of time, such as a vacation 

period.

There are two ways to set the schedule program times for 

WAKE, LEAVE, RETRN, and SLEEP: 

— One day at a time 

— All days at the same time 

1. One day at a time programming:

• Select EDIT DAILY from the Program Settings sub-

menu. 

• A list of four program times per day displays, 

showing the factory pre-set times for all programs:

MON WAKE       6:00A

MON LEAVE      8:00A

MON RETRN      4:30P

MON SLEEP     10:00P

TUE WAKE       6:00A

TUE LEAVE      8:00A

TUE RETRN      4:30P

TUE SLEEP     10:00P

SAT WAKE       6:00A 

SAT LEAVE      --:-- 

SAT RETRN      --:-- 

SAT SLEEP     10:00P 

SUN WAKE       6:00A 

SUN LEAVE      --:-- 

SUN RETRN      --:-- 

SUN SLEEP     10:00P 

• Any of the times can be changed by scrolling to that 

line and pressing the + or – button until the desired 

program time is displayed. 

2. Programming all days at the same time:

• Select EDIT ALL DAYS from the Program Settings 

sub-menu.

• A sub-menu displays where you can change the 

WAKE program time for all days, the LEAVE 

program time for all days, etc. 

• When all four programs have been set, select the 

COPY TO ALL DAYS option. This displays the 

prompt: COPY TO ALL DAYS - ARE YOU SURE?. 

Select Yes by positioning the indicator arrow at YES 

and press the OK button.

• Next, the same list of days as EDIT DAILY 

(described in step 1) displays, except that all days 

now show the times for the WAKE, LEAVE, RETRN, 

and SLEEP programs that you set in the EDIT ALL 

DAYS menu.

• If you do not want all days of the week to have the 

same program schedule (e.g., weekdays different 

than weekends), you can now scroll down and 

change the program times for certain days by 

positioning the indicator arrow beside the program 

time to change and using the + or – button to 

increase or decrease the scheduled program time.

When the program times have been set for all days, press the 

Home button to leave the programming menus and return to 

the Home Page display. All settings take effect immediately. 

NOTES:

1.

Schedule times are in 15-minute intervals.

2.

To have the AQ251 ignore a program change 

(and therefore keep the previous program's set-

point temperature), position the cursor beside the 

period to be ignored and press the OK button. 

The AQ251 will display “--:--” beside that program 

and, when operating, will continue with the previ-

ous program's setpoint until the next program 

change.

STATISTICS

This sub-menu provides information about system activity and 

mix valve cycle counts. See Fig. 3 on page 8 for an illustration 

of the statistical data that can be displayed.

Содержание AQ251

Страница 1: ... experienced licensed service technicians should service this Control Panel The front cover of the AQ251 Control Panel should not be removed as this will expose the user to potentially dangerous line voltage 120V electricity Congratulations The AQUATROL AQ251 installed on your heating system is the most powerful yet user friendly hydronic heating control system available on the market for resident...

Страница 2: ...umber the displayed value will decrease increase by pressing these buttons When holding the or button for more than a second the values automatically decrease increase at a faster pace similar to setting the time on a digital clock radio If the menu item is an option pressing these buttons scrolls through the list of available options one at a time Fig 1 LCD Dot Matrix Display Layout Model Functio...

Страница 3: ...tback schedule you must use the or button to change the time 2 The OK button when pressed defaults the time setting to midnight If the active menu item leads to a further sub menu pressing the OK button displays the sub menu options on the LCD Scroll through this sub menu to position the indicator arrow beside the desired menu item to input or modify Choose one of the options provided or input the...

Страница 4: ...for both the AQ251 control s LCD and the zone thermostats The time display in 12 hour e g 7 00 PM or 24 hour format e g 19 00 Date and time of day allows building owner to reset day and time of day in the event of a power outage of more than 4 hours refer to Troubleshooting section The Home Page display view Simple or Detail The factory default is Detail The LCD Backlight illuminated permanently O...

Страница 5: ...ur programs have been set select the COPY TO ALL DAYS option This displays the prompt COPY TO ALL DAYS ARE YOU SURE Select Yes by positioning the indicator arrow at YES and press the OK button Next the same list of days as EDIT DAILY described in step 1 displays except that all days now show the times for the WAKE LEAVE RETRN and SLEEP programs that you set in the EDIT ALL DAYS menu If you do not ...

Страница 6: ...ve and the minimum ON time has not yet elapsed AUX IN EM SHUT n a Auxiliary Input s Emergency Shut Down is active BOILER EM SHUT Boiler is disabled because the AQ251 is in Emergency Shut Down mode FRZ PROT Boiler freeze protection activated Communication between Control Module and Zoning Module has been lost for more than 1 minute or Boiler supply temperature is less than 50 F 10 C HEAT DHW Boiler...

Страница 7: ...ntractor quickly identify the lost zone and fix its wiring to re establish communication with the Control Module NO RETURN PROBE n a No return sensor connected or it is defective NO SUPPLY PROBE n a No supply sensor connected or it is defective SHORT CYCLE PROT n a There is a call for heat but less than two minutes have elapsed since the last firing of the boiler prevents short cycling VALVE INIT ...

Страница 8: ...CLE PROT VALVE INIT WATER READY WWSD ACTIVE SYSTEM STATUS 1 ZONE A 1 ROOM TEMP FLOOR TEMP SETPOINT 70 FLOOR SETPT 70 HEAT COOL STATUS SETBACK 7 SETPOINT MAX 100 SETPOINT MIN 41 FLOOR LIM HI 100 FLOOR LIM LO 41 SETPOINT VACANCY HEAT 41 SETPOINT VACANCY COOL 100 CHANGEOVER 2 KEYBOARD UNLOCK ZONE SETTINGS All or Single 2 ARE YOU SURE NO YES MON WAKE 6 00A MON LEAVE 8 00A MON RETRN 4 30P MON SLEEP 10 ...

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