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Look up SBA.Gov, they have links that breaks down 10 steps to start your business.

Get a hood on the vents and see what you're drawing out at each floor. Could you be drawing gasses from drains?

405.3.1 Bathroom Exhaust Rate: Minimum 50 cfm for
intermittent operation and 20...

Might want to find an engineer to look at this. So many variables to take into consideration. Size of unit, air flow of intake, power requirements, etc.

You need to figure out the size heater you...

Its a Apprentice job so, it tells me they are not looking for a tech.

Apply and see if you get an interview. In the meantime,

Write down the work you do now in detail for example, type of jobs...

I think running server room temps at 65* is to cold anyway. Maintaining 72-78* is adequate.

This will help with RH%

Would be helpful if you had a sequence of operation.

From the drawing, seem to me the system in maintaining a room temp of 65* and a 50% RH. If that's the case its working.

If your trying to...

Unfortunately, unless you move up in a company where they know your skills, most companies rely on your proven education i.e. degrees. However, if you can show your work history as having managed...

What kind of HVAC sales, service or Products ?

Google search; "Commercial or Retail office space for Rent" a ton of leads will be at your finger tips.

Yes, I have done many of these. However is predicated on a minimum of a block of hours. We would have a standard contract, showing a block of hours. We would block out say 100hrs at $XXX min two...

do you have a written sequence of operation? and is it operating as designed?

and when you say operate manually what are you doing?

also has this always been an issue or did it just start?
...

Being on call is part of the trade.

you might be able to rebuild it, check with manufacture.

but weigh the cost in labor and material.

look into High capacity filters, they have more square footage of media in them by increasing the pleat count. This gives more surface area for the air to pass through and therefore reduces static...

All they want is to make sure they don't over pressurize the interior when they bring in outside air, the wall damper will open when outside dampers open. not sure why they just don't use barometric...

Make sure you have enough pressure to serve the coils, taking pressure and temperature drops across the coils will be good to know.

I have never chemically flushed PVC lines with detergent. But its a good idea to flush lines before they enter equipment. Just to make sure no debris clogs strainers.

Recommend flushing out new...

Temp controller for the return air or room temp

example: Honeywell T775 electronic remote temperature controller.

or just have each with their own thermostat.

I see the outside air, mixed air, but don't see a spill damper? chill water coils without glycol is a disaster waiting to happen. We would make up a glycol solution and flush out the coils, then...

I agree, also I would see who did the last Boiler inspection and see when the next one is. Find who does your chemicals testing. Contact them both, they can tell you a lot.

Make up water temp seems low. what steam pressure you maintain? Sounds like the tank is trying to heat all the time, to keep up with the boiler. Feed Water temp should be around 200. Do you have...

5lbs supply not enough pressure, How tall is the building? Be good idea to check pressures elsewhere in the loop, my guest is you lost water. If you don't have city water with auto make up, you will...

Few things that come to mind, depending on the design you have

Do the pumps run in auto or do you have them in hand?

low pressure, (do you have makeup water) what pressures do you have?
...

From what you posted, your system is designed for a range of static pressures of .3" to .8". This is the static pressure you need to push the air through the ducts to reach all the rooms. lower...

You can put in the highest MERV you want. Just need to know what your pressure drop is Clean and monitor it, so you know when to change it. Typically you would change a filter at .8- 1'" max.

Check contactors, fuses and fans, might have a bad condenser fan motor.

When was the last time you had the unit serviced? before you do anything, need to make sure the unit is running as designed

What temp are you trying to maintain?
while its heating what is the...

Contact Carrier and give them the Serial # of the unit.

Again, not knowing the heat load its just guess. If you want to use 20 btu's per sqft 900sqft = 18k then you good. This estimate is used by most online AC sellers

We don't know windows, sun load,...

Without knowing more about the layout and heat loads, 18K to small. A 2-2.5 ton would be better

UV will kill mold and help keep your coil and drain pan clean of slime and mold.

Wires can be an issue, have to check with the manufacture. Typically not a problem. Wires get dirty, stuff can grow...

- (Dealing with crappy co workers and customers.) They are a dime a dozen, Say as little as possible and be respectful. For Customers, you either say Ill take care of it or walk away, tell them to...

also verify the water sensors are reading correctly. I have several Cgam units. I have had my share of sensors not reading right. if they have not been changed in a few years. Might want to swap...

So in addition to sales they want you to "The company is needing an estimator/sales person to handle lead generation/marketing, on-site estimates with follow ups/closing, all equipment/parts ordering...

I would suggest getting with an engineer to size an electric boiler for your water loop. This is common, just need to find a place to put it.

what exactly are you trying to to accomplish?

You have a building with water source heat pumps and you want to heat the water loop in the most efficient way?

what's wrong with the Steam...

I wouldn't make sense for a heat pump to be used in this manner.

I would get their contractor numbers, any issues file a complaint with the state.
I would take closeup pictures everyday they make a mess and email them to the GC over seeing the job site. Put them...

Is the closed loop tied into your city water? if so, does it have a back flow preventer?

I don't believe domestic hot water is mixing with the closed loop.

Sounds like city water is hard, do...

With door open you draw air in faster, might be why you see water blowing all over. Check pressure drop across the coil with and without filters. see Page 32 in manual

Has this always been an...

Have you checked the coil? I have found in some cases the front side after filters, the coil at the bottom sitting in the drain pan was dirty creating a dam and allowing some of the condensate water...

Are you sure the condenser fan is good? sounds like when the other fan is running its drawing air in and making it go backwards.

Did you power down to see if that reset alarm?

You might want...

Without power not much you can do.

They bought the building with the unit in its condition.

Personally I wouldn't spend two seconds on this. Send the pics to the owners, tell them you cant do...

Typically you get a base pay plus commission. Can you survive off a base pay? base pay, plus company car, phone might not be so bad. If you selling large quantities, you just need to make a few...

New Sale job, only new sales, salary + commission, company car? gave you a sales goal of 1mil 2 mil, 5mil?

Tough tough job, even for a seasoned Pro. I agree with 71CHOPS. You will need to dial...

Standard Duct static pressure sensor, just need to know what's the max neg pressure you will pull. I have a system where we have a fixed exhaust fan with a bypass damper. (Static sensor controls the...

leaving compressor to condenser is, High pressure, High temp Vapor. As it makes its way through condenser turns to High pressure saturated liquid, end of condenser to EV, high Pressure liquid.
...

looks like a mixing valve, when the tower supply water is cold, bypass opens to allow water from building return to mix. When water is to warm valve closes to allow more water to tower. Is Temp...

Most ranch style or duplex homes with a common hallway ceiling return, properly sized, works fine. If you can run returns even better but, many attics are not properly vented or the space is tight....

Agree