Honeywell AQ251 User Operation And Maintenance

Also see for AQ251: Technical reference booklet

Contents

Honeywell AQ251 User Operation And Maintenance Manual pdf 5 page image

AQUATROL ZONE SYNCHRONIZING BOILER RESET CONTROLS5 69-1979—04changes temporarily, requiring thetemperature to be at a comfort level 24hours/day.UNOCC: In UNOCC mode, the AQ251 holds thetemperature of UNOCCUPIED programs(LEAVE and SLEEP). This might be used ifthe building will be unoccupied for anextended period of time, such as a vacationperiod.There are two ways to set the schedule program times forWAKE, LEAVE, RETRN, and SLEEP:— One day at a time— All days at the same time1. 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 6:00AMON LEAVE 8:00AMON RETRN 4:30PMON SLEEP 10:00PTUE WAKE 6:00ATUE LEAVE 8:00ATUE RETRN 4:30PTUE SLEEP 10:00P…SAT WAKE 6:00ASAT LEAVE --:--SAT RETRN --:--SAT SLEEP 10:00PSUN WAKE 6:00ASUN LEAVE --:--SUN RETRN --:--SUN SLEEP 10:00P• Any of the times can be changed by scrolling to thatline and pressing the + or – button until the desiredprogram time is displayed.2. Programming all days at the same time:• Select EDIT ALL DAYS from the Program Settingssub-menu.• A sub-menu displays where you can change theWAKE program time for all days, the LEAVEprogram time for all days, etc.• When all four programs have been set, select theCOPY TO ALL DAYS option. This displays theprompt: COPY TO ALL DAYS - ARE YOU SURE?.Select Yes by positioning the indicator arrow at YESand press the OK button.• Next, the same list of days as EDIT DAILY(described in step 1) displays, except that all daysnow show the times for the WAKE, LEAVE, RETRN,and SLEEP programs that you set in the EDIT ALLDAYS menu.• If you do not want all days of the week to have thesame program schedule (e.g., weekdays differentthan weekends), you can now scroll down andchange the program times for certain days bypositioning the indicator arrow beside the programtime to change and using the + or – button toincrease or decrease the scheduled program time.When the program times have been set for all days, press theHome button to leave the programming menus and return tothe 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 theperiod to be ignored and press the OK button.The AQ251 will display “--:--” beside that programand, when operating, will continue with the previ-ous program's setpoint until the next programchange.STATISTICSThis sub-menu provides information about system activity andmix valve cycle counts. See Fig. 3 on page 8 for an illustrationof the statistical data that can be displayed.

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