+
Related Flashcards
Cards In This Set
| Front | Back |
|
What will a rooftop unit do when the sta is under a diffuser?
|
Short cycle
|
|
What is fan B on the display case?
|
Partially refrigerated
|
|
Where do you take a pysh reading on a HRV?
|
Return air
|
|
What do you use for leak test on a ammonia?
|
Sulfur candle
|
|
Rooftop a/c according to csa shall be how far from roof top?
|
10ft
|
|
When lifting a A/C unit to the roof, what is require?
|
Permit, barrier, flag man, closed off area
|
|
The vapour barrier on awalk in cooler
|
Hi-temperture side and insulation
|
|
What component are removed when replacing a seal on a closed-coupled, end suction pump?
|
Impeller
|
|
Pipe supports must be located with what distance of change of pipe direction
|
2 ft
|
|
A di-electric union is used when?
|
brass to black iron
|
|
Rectangular duct 4" x 20", how many. 7/8 pipe with 2" space 1/2 insulation
|
5
|
|
To reduce vibration in the duct system
|
Install canvas connectors
|
|
A technician arrives at the site and finds the supply fan motor has tripped, what is the proplem?
|
The inlet vanes are open
|
|
The vacuum measuring device sensor is to be located?
|
As far away as possible in the vertical position furthes away from vacuum pump inlet in the vertical position
|
|
When replacing a broken belt on a multigroove pulley
|
Replace them all
|
