HVAC Training Simulator

Interactive System Diagnostics & Fault Simulation

🌡️ Thermostat

75°
Current Temp
Target72°F
🌤️Outside85°F
ECM Blower Speed---
Zoom:50%
Scroll to zoom • Click+drag to pan
AIRFLOW: RETURN → FILTER → INDUCER → BURNERS → HEAT EXCHANGER → BLOWER → EVAP COIL → SUPPLYRCWGYTHERMOSTAT75°FCURRENT72°FSET⏻ OFFMODERETURN75°FSTATIC-0.50"25×30×4MERV 8CLEANFILTERRETURN AIRPORTINDUCERAMPS0.0AINDUCERL1NGASVALVEGAS INGAS OUT24V+CSTATUSPVMVGAS LINEPSOPENPORT24VINOUTPRESSURE SWPS HOSEVENTGASMAINONGAS SUPPLYLIMIT 172°INOUTLIMIT 272°INOUT120V TERMINALSGNL1BURNERSGAS INHSIVOLTS0VL1NFLAME µA0.0FS TERMTRANSFORMERL1N24VCSPEED TAPS12345CL1NG120VMOTOR AMPS0.0AAIRFLOW CFM0BLOWERFURNACE CONTROL BOARDNEUTRALNNNNNNBLOWER TAPSFANHEATCOOLSP1SP2BLOWERL1COMFLAMEFSINDUCERL1NHSIL1NGAS VLV24VCL1 TERMINALSL1L1L1L1PSINOUTLIMITINOUTRCWGYFAULT CODEOKFUSE3AXFMRRCPWRHEATCOOLFANDOOR SWITCHCLOSEDSERIESINOUTTRANSITION✓ NORMALHEADTXV50%TO COILCAPILLARY TUBEBULB52°FEVAPORATOR COILPRIMARY DRAIN PANPRIP-TRAPMAINPLUMBINGSECSECSECONDARY PAN (OVERFLOW SAFETY)FSINOUTSUPPLY AIR72°FCFM0STATIC+0.50"SUCTION LINE (7/8")DRIERLIQUID LINE (3/8")GAUGESREFRIGERANT:R-410A (Puron)LOW SIDE118PSITEMP:52°FVSAT:42°FSH:10°FHIGH SIDE410PSITEMP:102°FLSAT:114°FSC:12°FSYSTEM DATADISCHARGE:180°FCHARGE:10.0lbDELTA T:3°FSUPPLY:72°FRETURN:75°FSTATIC:210 PSIOPERATING RANGE (R410A)LOW:HIGH:MANIFOLD PORTSLOWCHRGHIGHOUTPUT TERMINALSSUCTCHRGLIQ⚗️ REFRIGERANT CHARGINGCURRENT CHARGE10.0 lbsREQUIRED10.0 lbsManufacturer: 9 lbsLineset: 1 lbCharge %: 100%○ READYR410AREFRIGERANT30 lb TANKDISC🔌 CONNECT💨 RELEASESERVICE MODE⬜ OFFOFF○ MANIFOLD DISCONNECTEDCHRG PORT HOSE (select one):○ NITROGEN○ VACUUM○ RECOVERY○ REF TANKCHRG: Empty | Vacuum: OFF (500000µ) | N₂: 0 PSI | Recovery: 0.0 lbs400NITROGENN₂TARGET PSI400⬜ DISCONNECTED🔶 STANDBYOUTVACUUMPUMP2-STAGE 6 CFMVACUUM0 PSIOFFIN○ DISCONNECTEDRECOVERYPUMP1 LB / 2 SECSTATUSOFFINOUT○ DISCONNECTEDRECOVERYTANKEMPTYCONTENTS0.0 lbs🛢️ STANDBYINSERVICE EQUIPMENT STATUS○ READY FOR SERVICEOUTDOOR CONDENSEROUTDOOR TEMP85°FCONDENSER FANL1L2GFANFAN AMPS0.0ACOMPRESSORRSCCOMP AMPS0.0AL1OUTL2OUTCOILL1INL2INY24VC24VPUSHCONTACTORHCFDUALCAP45+5 MFDDUAL CAPACITORLOPSI70INOUTLOW PSI SWHIPSI600INOUTHIGH PSI SWGNDGSERVICE PORTS7/8" SUCTLOW3/8" LIQHIGHCONDENSER CONTROL BOARDPWRRUNFLTYFAULT CODEOK240VTERMINALSL1L2GLINE IN ↑LOAD OUT →DISCONNECT120V TERMINAL BLOCKL1NGND240V TERMINAL BLOCKL1L2GND120V FURNACE20AON240V CONDENSER40AON⚡ ELECTRICAL PANELPLUGGNL1120V OUTLET⏻ OFF

System Status

Mode
OFF
Blower
OFF
Compressor
OFF
Burners
OFF
Furnace
IDLE
Freeze
0%
Water
0%

🔧 Fault Simulation Controls

🌡️ Environmental Conditions

85°F
40°F70°F85°F100°F115°F
Presets:

Effects on A/C:

• Head pressure: +3 PSI per °F above 85°F (normal ~410 PSI at 85°F)

• Compressor amps: +1.5% per °F above 85°F

• At 100°F+: Risk of high pressure switch trip (HP cutout)

• At 110°F+: Risk of thermal overload

❄️ Condenser Unit (Max 30A)

⚡ Electrical Faults

Short to ground trips breaker immediately

⚡ Dual Capacitor (45+5 MFD)

H=Compressor, C=Common, F=Fan Motor

📊 Pressure Switch Ratings

Manually engages condenser

🔥 Furnace Unit

Simulates gas shutoff at meter

💨 Airflow & Evaporator

🔄 ECM Motor Speed Tap Failures

Individual speed taps can fail - motor still works on other speeds

💧 Drain System (Primary & Secondary)

Primary Drain Pan: 0%
Secondary Drain Pan: 0%

⚡ Condenser Electrical (240V)

15ARecommended: 36A100A
Current Draw0.0A
Max: 40A

🔌 Furnace Electrical (120V)

15ARecommended: 17A100A

Click to unplug/plug furnace

Current Draw:
0.0A / 20A

🧪 Refrigerant System

GWP:2088
Safety Class:A1
Charge Level:100%
⚗️ REFRIGERANT CHARGING
Current
10.00 lbs
Required
10.0 lbs
Manufacturer: 9 lbs | Lineset: 1 lb
💨 REFRIGERANT LEAKS
⚗️ MANUAL CHARGE ADJUSTMENT
Current: 10.0 lbs / 10 lbs required

🔧 Service Equipment

SERVICE MODE
Service Hoses:
🛢️ RECOVERY MACHINE
Tank Contents
0.0 lbs
Empty
System Charge
10.0 lbs
In system
Rate: 1 lb per 2 seconds (hold button)
🔶 NITROGEN TANK (Pressure Test)
Tank Connected:
System Pressure (Nitrogen)
0 PSI
⚠️ Must recover refrigerant first!
Rate: 100 PSI per 5 seconds
💨 VACUUM PUMP
Pump Connected:
Vacuum Level
0 PSI
⚠️ Must recover refrigerant first!

• 0 PSI → 29.9" Hg: 5 seconds

• 29.9" Hg → 200µ: 15 seconds

🔌 Low Voltage Wiring (24V)

Transformer Output:
24.0V
3A Fuse:✅ Good
Thermostat Wires:
R- 24V Power
C- Common
W- Heat
G- Fan
Y- Cool
Condenser Wires:
condenserRed- To Y
condenserWhite- To Common

📊 Live System Diagnostics

Airflow & Static Pressure:
Blower CFM
0
Return Static
-0.50"
Supply Static
0.50"
Total Static
1.00"
Air Temperatures:
Supply Air
72°F
Return Air
75°F
Delta T
3.0°F
Flame µA
0.0
Motor Amp Draws:
Compressor
0.0A
Cond Fan
0.0A
Blower
0.0A
Inducer
0.0A
Refrigerant Pressures:
Suction PSI
118
Liquid PSI
410
Head PSI
410
Line Temperatures:
Suction Temp
52°F
Liquid Temp
102°F
Discharge
180°F
Saturation & Calculated:
VSAT
42°F
LSAT
114°F
Superheat
10°F
Subcooling
12°F
Furnace Stage:
Idle