Heating Flashcards
1
Q
Thermocouple open cct test voltage
A
17-32mVDC
2
Q
Thermocouple closed cct test voltage
A
8-17mVDC
3
Q
Pilot drop out voltage and time
A
2-6mV
90 seconds
4
Q
2 types of burners
A
In shot and up shot
5
Q
3 types of burner heads
A
Non aerated
Post aerated
Aerated
6
Q
Air to fuel burning ratio CH4
A
10:1
7
Q
2 purposes of pilots
A
Light burners and flame safety
8
Q
4 types of gas regulators
A
Service
System
Appliance
Servo
9
Q
Pvc White 636 temp
A
65 C
10
Q
Pvc 636 grey temp
A
90 C
11
Q
B vent temp
A
471
12
Q
Gas vent distance from fresh air intake
A
10 ft
13
Q
Gas vent distance from ignition source and dryer vent
A
3 ft
14
Q
of stages for propane regulator
A
2
15
Q
Oil flame safety method
A
Light
