Page | 1
HVAC: EPA 608 CERTIFICATION EXAM EXAM
2025| BRAND NEW ACTUAL EXAM WITH 100%
VERIFIED QUESTIONS AND CORRECT
SOLUTIONS| GUARANTEED VALUE PACK| ACE
YOUR GRADES.
1. What can happen if you exceed 10 psig while pressurizing the
system? - correct answer - Can cause the rupture disc to fail
, Page | 2
2. How should a water box be leak tested? - correct answer - Be
certain water has been removed, then place the leak detector
probe in through the drain valve.
3. What equipment should be used to leak test a tube? - correct
answer - Hydrostatic tube test kit
4. What are the leak repair requirements for comfort cooling
appliances and commercial appliances containing 50lbs. or
more of refrigerant? - correct answer - The leak rate exceeds
15% in comfort cooling appliances or the leak rate exceeds
35% in all commercial and industrial process refrigeration
5. What are the typical pressure settings for rupture discs on low
pressure systems and recovery equipment? - correct answer -
The rupture disc on a low pressure system is set for 15 psig
while the recovery unit's high pressure cut-out is typically set
for 10 psig in order to help prevent damage to the low pressure
6. How should a technician recover refrigerant from a system
using R-11 or R-123? - correct answer - Remove the liquid first
and recover the remaining vapor
, Page | 3
7. After removal of liquid, about how much vapor will remain in the
system on a 350 ton R-11 chiller? - correct answer - 100lbs
8. How can you speed up the vapor recovery process on Type III
systems? - correct answer - A heater on the recovery vessel
side will help evacuate the vapor faster
9. Where does the water typically come from in a water cooled
condensing system? - correct answer - Municipal water supply
10. What parts of the system should be drained of water before
recovering refrigerant? - correct answer - The water sides of
the evaporator and condenser should be drained prior to
recovering the refrigerant
11. How should a technician treat the oil before removal and
why? - correct answer - A temperature of 130 degrees F should
be attained first.
HVAC: EPA 608 CERTIFICATION EXAM EXAM
2025| BRAND NEW ACTUAL EXAM WITH 100%
VERIFIED QUESTIONS AND CORRECT
SOLUTIONS| GUARANTEED VALUE PACK| ACE
YOUR GRADES.
1. What can happen if you exceed 10 psig while pressurizing the
system? - correct answer - Can cause the rupture disc to fail
, Page | 2
2. How should a water box be leak tested? - correct answer - Be
certain water has been removed, then place the leak detector
probe in through the drain valve.
3. What equipment should be used to leak test a tube? - correct
answer - Hydrostatic tube test kit
4. What are the leak repair requirements for comfort cooling
appliances and commercial appliances containing 50lbs. or
more of refrigerant? - correct answer - The leak rate exceeds
15% in comfort cooling appliances or the leak rate exceeds
35% in all commercial and industrial process refrigeration
5. What are the typical pressure settings for rupture discs on low
pressure systems and recovery equipment? - correct answer -
The rupture disc on a low pressure system is set for 15 psig
while the recovery unit's high pressure cut-out is typically set
for 10 psig in order to help prevent damage to the low pressure
6. How should a technician recover refrigerant from a system
using R-11 or R-123? - correct answer - Remove the liquid first
and recover the remaining vapor
, Page | 3
7. After removal of liquid, about how much vapor will remain in the
system on a 350 ton R-11 chiller? - correct answer - 100lbs
8. How can you speed up the vapor recovery process on Type III
systems? - correct answer - A heater on the recovery vessel
side will help evacuate the vapor faster
9. Where does the water typically come from in a water cooled
condensing system? - correct answer - Municipal water supply
10. What parts of the system should be drained of water before
recovering refrigerant? - correct answer - The water sides of
the evaporator and condenser should be drained prior to
recovering the refrigerant
11. How should a technician treat the oil before removal and
why? - correct answer - A temperature of 130 degrees F should
be attained first.
