Asked Feb 8 2017 in Trades Technology by Pique. Some vehicles can operate the heater even when the engine is turned off.
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Technician B says that excessive wear adds to the length of a heater hose and a replacement heater hose should be roughly three to four inches shorter than its predecessor.
. Technician A says that a misadjusted heater control could be the cause. Technician B says electric cooling fans are controlled by temperature and pressure actuated switches. This means that the heater comes on when the room temperature gets 5 degrees below the Temp setting and the air conditioner comes on when the room temperature gets 5 degrees above the.
During a performance test on a CCOT system the manifold gauge indicates that the high side pressure is low and the low side pressure is high. Up to 25 cash back Technician A says that the temperature is controlled by blending airflow through the evaporator and heater core. Technician A says that PTC heaters can be built into a conventional heater core assembly.
Technician B says that outside air is used in all heating and cooling positions. Which technician is correct. Technician A says that heated coolant enters the heater inlet hose close to the engine thermostat.
A yellow substance is noticed around the evaporator case drip tube. Technician A says this could be a faulty heater control valve. Technician B says that a bad thermostat could be the cause.
Tech A says that when troubleshooting an automatic temperature controlled AC or heating problem one of the first steps should be to check codes for. This is done by using. Technician A says that a misadjusted heater control could be the cause.
Technician A says electric fans regulate refrigerant temperatures more precisely than belt driven fans do. Technician B says that the system may. Technician A says that the sharp edges of spool valves should be rounded using 400 grit sandpaper.
Which technician is correct. The temperature of a heater can be controled by regulating the amout of coolant that flows into the heater core now this coolant can be different things like water or particular to the question air. Technician A says that the tank should be vented until the pressure is reduced if the identifier detected non-condensable gases air in the refrigerant.
A technician checked the pressures on a 30 lb. A Technician A only B Technician B only C Both technicians D Neither. Both of them are correct.
On a manual air conditioning system without automatic control the compressor clutch does not operate. A heater does not supply enough heat and the coolant level and flow are correct. This is caused by a.
It is both true that Technician A says that the excessive length of a heater hose is intended to protect the heater core from undue stress. Technician A says heater temperature may be controlled by regulating the amount of coolant flowing t. An auxiliary water pump.
Technician A says this could be a faulty heater control valve. Technician B says that a bad thermostat could be the cause. A heater does not supply enough heat and the coolant level and flow are correct.
Technician B says that all valve body parts should be cleaned and then dried using low- pressure filtered compressed air. A technician is diagnosing a vehicles air conditioning system. Technician B says the coolant from the heater core returns to the water pump outlet asked Jul 9 2018 in Trades Technology by anna54.
Two technicians are discussing electric cooling fans and air conditioning performance. Technician A says that one heater hose should be hot and the other hose cool if the heater is functioning okay. Technician B says that a PTC heaters electrical resistance will decrease as its temperature increases.
Technician B says that the temperature is controlled by blending airflow through the evaporator and heater core. Faulty compressor An air conditioning system blows only warm air when the heater is on high output. Container of R-134a at 80F 27 C and the pressure was 101 PSI 700 k Pa.
So both technicains are correct in this case. Solutions for Chapter 54 Problem 9ASRQ. Solutions for Chapter 42 Problem 83SS.
Technician A says heater temperature may be controlled by regulating the amount of coolant flowing through the heater core. A high low side and a low high side indicates a faulty AC compressor. Technician A says one heater hose is hot to the touch and the other hose is cold when the heater core is functioning okay.
Heating Ventilation and Air Conditioning Technician During business hours as shown in figure a the Temp range control in an office is set at 5. Technician B says this could be caused by the cooling systems thermostat. Answer D is correct.
So the asnwer is letter B. Technician B says heater temperature may be controlled by regulating the amount of air flowing through the heater core. Both A and Bd.
Technician B says the upper radiator hose should be at engine operating temperature which is very hot to the touch. The vehicle has good engine performance but the air conditioner is blowing warm air only. Tech a says that a temperature blend air door controls how much air bypasses the heater core.
An air conditioning system blows only warm air when the heater is on high output. Technician A says that the system may be completely empty of refrigerant. Technician B says that additional refrigerant should be added.
Tech B says that the resignation blend air controls fresh air. Technician A says this is coolant leaking from the heater core. Tech A says a 5050 mixture of ethylene glycol and water mixture lowers the freezing point of the coolant below that of water.
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