Hello, I'm wondering if anyone can help me out by providing their interpretation of the ASHRAE requirement for minimum ventilation for a building consisting of several hundred storage lockers, which are accessed from interior corridors (just like what you'd see on "Storage Wars"). The locker...
Hello, I'm trying to resolve what I read as the NBCC requirements, and what I keep seeing done in practice for new high-rise buildings with respect to stair and elevator shaft pressurization systems. I am in the midst of designing the HVAC systems for a new 10-storey apartment, and want to be...
Thank you for the quick responses to the question.
For further clarification: there is a section of the building code (Part 9) that deals exclusively with housing and small commercial buildings. This section contains a requirement for a grease filter on any exhaust intake that is within 3 meters...
Hello,
I'm working on a design for a multi-storey apartment building. Each suite's kitchen will have a residential-style range hood over the stove-top, each one containing a washable grease filter, and the hood will recirculate the air back into the kitchen. ASHRAE requires that each kitchen...
Thank you both for the leads.
The website was very helpful, and it appears as though the joint between copper pipe (V = 0.35) and stainless steel pipe (304 SS has +/- 18% chromium content, so V = 0.50) will NOT require a dielectric union, since the differnece is only 0.15.
However MJCronin...
I will typically specify a dielectric union to be installed whenever dissimilar metals are joined. When copper and steel pipe are joined, the steel pipe will corrode due to the galvanic action. But, when stainless steel is joined to copper (in a domestic water system) will a dielectric union...
Hello all. I'm working on the HVAC design for a resort, which has a service/storage area in the basement under the suites of one wing of the building. The basement takes up only half of the footprint of this wing, with the other half of the wing on a slab-on-grade. There is to be a walk-in...
The location of the chlorine storage room was selected with the input of a pool consultant within our design team. The room does not have access from the outside. Could you (ChrisConley) please refer me to the relevant section of a code or standard I could forward on to the pool consultant? I'd...
Thanks for all the input.
I think I'll see if I can get a variable speed fan to provide 300 cfm on chlorine detection, and provide 30 cfm continuous. Now, rather than run a duct from outside to this storage room in the basement, I think it might make more sense to transfer air in from the...
Can anyone tell me what an appropriate ventilation rate would be for a small room (3'x8'x10'h) used to store two liquid chlorine storage tanks? The pool consultant's drawings indicate that ventilation is required (with no CFM or ACH rate given), with duct inlet at low level. Would this ductwork...
There are no fuel-fired appliances - everything's electric.
The outside air intake is integral to the furnace, with the opening on the suction side of the fan, which is wired to run constantly.
And yes, there is a clothes dryer, which I neglected to mention earleir.
Here in Canada, the new Building Code prohibits providing ventilation air to apartments via pressurizing the corridor, and transferring into the suites. We now find it preferable to introduce ventilation air directly to the suite's fan coil, to meet the outdoor air requirements. The suites in...
I would define an engineer as a 'responsible builder'
Engineers use scientific principles to ensure that what they design will function properly and safely, yet also make sure it's not more costly than it needs to be.
According to the National Building Code of Canada, the practice of exhausting air from occupied spaces into a parking garage is normally prohibited, due to the risk of air flowing back from the garage into the occupied areas. However, in the explanatory section of the code, it indicates that the...
Hello,
When entering data into HAP, we usually first do a take-off from the drawing, using Excel to keep track of the properties of each space. Entering the data from Excel into HAP is often very time-consuming, if there are many spaces.
Looking through the files in the HAP program directory...
