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BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22120
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
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Trying to figure out how to get my thermostat to turn down

Customer Question

Trying to figure out how to get my thermostat to turn down and start cooling
It's preprogrammed and I just need it to switch to ac
It's a Honeywell commercial style T7300/Q7300
I have the installation manual here but can't make heads or tails of it
I'm not an HVAC guy
Submitted: 1 year ago.
Category: HVAC
Expert:  BillyHvac replied 1 year ago.
Hello,
Is this in a commercial building?...does it have the keypad locked out?
Customer: replied 1 year ago.
Yes sort of commercial/residential...specialized care facility
Yes I believe it is locked out
Expert:  BillyHvac replied 1 year ago.
press 3 hr occupied button and turn temp to desired setting...tell me if ac kicks on
Customer: replied 1 year ago.
K hold on one sec
Expert:  BillyHvac replied 1 year ago.
standing by
Customer: replied 1 year ago.
Pressed 3 hr occ button arrow cursor blinks @ 3 hr occ printing on side of screen but no temp read only time of day pressed minus key anyhow and no response from ac
Expert:  BillyHvac replied 1 year ago.
now press occupied cool
Customer: replied 1 year ago.
Pressed it 72 deg pops up arrow is still at 3hr occ
Expert:  BillyHvac replied 1 year ago.
great...now is this a one piece unit outside (the ac) or a blower inside and ac outside
Customer: replied 1 year ago.
It's a one piece?....it's a Honeywell thermostat in the dining room
Expert:  BillyHvac replied 1 year ago.
the equipment...not the thermostat
Customer: replied 1 year ago.
Blower in ceiling
Unit is outside
Expert:  BillyHvac replied 1 year ago.
thank you...so the blower has not kicked on?
Customer: replied 1 year ago.
Nope
Expert:  BillyHvac replied 1 year ago.
ok we will try another override..press far right bottom cont unocc
Customer: replied 1 year ago.
Okay cool
Pressed it
Expert:  BillyHvac replied 1 year ago.
Has unit engaged yet?
Customer: replied 1 year ago.
No sir
Customer: replied 1 year ago.
Arrow indicator points at cont unoccupied
Only time indicator
Expert:  BillyHvac replied 1 year ago.
press cont unoc one more time....
Customer: replied 1 year ago.
Okay pressed it
Sorry for delay setting up dining area for conference
+fans
Customer: replied 1 year ago.
Pressed it and arrow blinked off
Turned back to occupied
Expert:  BillyHvac replied 1 year ago.
Ok,
if it did NOT start...it is locked.
There is a way to bypass for direct cooling but involves removing the top section of the thermostat to where we see the wires....if you are game for that let me know...
Customer: replied 1 year ago.
How long?
Difficulty level?
Expert:  BillyHvac replied 1 year ago.
quick...and easy...
we remove the top section of the thermostat...allen set screw on bottom.
Top section comes off to expose the wires....these are low voltage wires we can touch.
Take wire from R (red) wire from G (green) and wire from Y (yellow)
Twist those 3 wires together and you have cooling....UNLESS something is wrong with the equipment and not thermostat
Customer: replied 1 year ago.
One sec
Expert:  BillyHvac replied 1 year ago.
standing by
Customer: replied 1 year ago.
Red yellow green twisted together
No response
From over head blower vents in dining area
But AC in common areas not working
Expert:  BillyHvac replied 1 year ago.
The blower is running but not cool or nothing in this area working?
Customer: replied 1 year ago.
I'm a "maintenance director"@ an Alzheimer's special care facility
My background is in carpentry 20yrs
But this commercial HVAC stuff is completely foreign to me
Expert:  BillyHvac replied 1 year ago.
I understand.
Unfortunately the issue appears to be the equipment...
Red green and yellow send direct signal for cool. If blower is is attic...I would check it for a plugged drain....this trips a switch that interrupts power to the thermostat.
After that we are talking about a voltmeter with step to step troubleshooting
Customer: replied 1 year ago.
Dude I don't even think blower is running
In the dining area where I am the overhead blower vents are emitting nothing not even warm air
But the vents out in other areas of the building seem to be blowing cool air
I have thermostats three I think
I know this is not a substation
Because it is labeled on my map diagram as T stat
Expert:  BillyHvac replied 1 year ago.
If the drain on the blower unit is plugged...it would turn off the signal till drain cleared.
If you choose to move forward with a voltmeter just let me know.
Customer: replied 1 year ago.
I'm just going to have to have a local tech come in and help me out
Summer is coming is and I need to get a handle on this:)
Thank you very much for your help billy you have been extremely helpful to me
I'm glad I found this site
How did yogurt get hooked up with this site?
Customer: replied 1 year ago.
Oops that wasn't supposed to be "yogurt"
Expert:  BillyHvac replied 1 year ago.
I was working on a mower and found the help here...so I applied to the category I had experience in.
We have Home Improvement, motors, cars, medical, vet...lawyers...everything...
Customer: replied 1 year ago.
That's awesome!!
Customer: replied 1 year ago.
You get paid?
Expert:  BillyHvac replied 1 year ago.
The experts get a portion of the deposit.
Work anytime you want....as much or as little
you can apply here - http://ats.justanswer.com/landing

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