Coil Static Pressure Drop, Total External Static | Goodmans GSZ

SERVICING

3. Add the two readings together.

TOTAL EXTERNAL STATIC

NOTE: Both readings may be taken simultaneously and read directly on the manometer if so desired.

4. Consult proper table for quantity of air.

If external static pressure is being measured on a furnace to determine airflow, supply static must be taken between the "A" coil and the furnace.

TOTAL EXTERNAL STATIC

S-204 COIL STATIC PRESSURE DROP

1.Using a draft gauge (inclined manometer), connect the positive probe underneath the coil and the negative probe above the coil.

2.A direct reading can be taken of the static pressure drop across the coil.

3.Consult proper table for quantity of air.

STATIC PRESSURE DROP

If the total external static pressure and/or static pressure drop exceeds the maximum or minimum allowable statics, check for closed dampers, dirty filters, undersized or poorly laid out duct work.

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Goodmans GSZ, ASZ, SSX, ASX, DSZ, DSX, GSX, SSZ manual Coil Static Pressure Drop, Total External Static

Contents

Service Instructions Recognize Safety SYMBOLS, Words and Labels Email us at customerservice@goodmanmfg.comImportant Information Fax us at 713 Fax us at 931 438 Safe Refrigerant Handling Product Identification Split System Heat Pumps R410A Model # Description Split System Air Conditioners R410A ASX130**1AA Single Piece Air Handlers AWUF****1AA MBR/MBE Air Handlers Product Identification 1824 3642 Accessories ASX13 DSX/SSX16 ASX18 ASZ13 DSZ/SSZ16 ASZ18 Expansion Valve Kits FSK01A Coil Accessories Electric Heat Kitapplications Aruf Electric Heat Kitapplications Aepf Product Design Condensing Unit Figure a Capacity Control System Operation HeatingCooling Cooling Cycle Defrost Cycle Heating Cycle Cooling Cycle System Operation AFE18-60A Control Board Description Troubleshooting Chart COOLING/HP Analysis Chart Servicing 61B Checking Wiring Checking THERMOSTAT, WIRING, and Anticipator3A Thermostat and Wiring Checking Voltage 3B Cooling Anticipator 3C Heating Anticipator Checking Time Delay Relay Testing Coil CircuitChecking Transformer Control Circuit Checking Cycle Protector Testing Compressor Contactor Single PhaseChecking Contactor AND/OR Relays Checking Contactor Contacts Copeland Comfort Alert Diagnostics Testing FAN Relay Diagnostics Table Checking Loss of Charge Protector Checking High Pressure ControlChecking LOW Pressure Control Checking Capacitor 15A Resistance Check 15B Capacitance CheckRELAY, Start 16A Checking FAN and Blower Motor Windings PSC Motors 16B Checking FAN and Blower Motor ECM Motors Chart on Next Chart from Previous 16D ECM CFM Adjustments MBE / Aepf 16C Checking ECM Motor Windings CFM 16E Blower Performance Data 16F Checking GE X13TM MotorsGE X13TM Motor Connections Testing Compressor Windings Checking Compressor17A Resistance Test 17B Ground Test 17C Unloader Test Procedure Unloader Test Procedure17D Operation Test Compressor Ground Test Testing Crankcase Heater Optional Item Testing Defrost ControlTesting Defrost Thermostat Checking Reversing Valve and Solenoid 40 MBR/AR*F Electronic Blower Time Delay Relay Checking Heater Limit ControlsChecking Heater Elements Sequence of Operation MBR/AR*F with Single Stage Heat Pumps Heating Operation 41 MBE/AEPF with GSX, SSX, ASX, DSX Defrost OperationMBE/AEPF with Single Stage GSX, ASX and SSX Condensers 41A MBE/AEPF with Single Stage GSZ, SSZ, & ASZ Heat Pumps Sequence of Operation MBE/AEPF with TWO Stage ASX & DSX Condensers MBE/AEPF with TWO Stage ASZ & DSZ Heat Pump Units Electric Heater Optional Item 61A Checking Heater Limit Controls 61B Checking Heater Fuse Link Optional Electric HeatersFormulas Leak Testing Nitrogen or NITROGEN-TRACED Refrigeration Repair PracticeEvacuation Brazing Materials Charging Evacuation Final Charge Adjustment Checking Compressor Efficiency 105B Thermostatic Expansion Valve TXV Valves Pressure vs. Temperature Chart 410A Required Liquid Line Temperature Overfeeding UnderfeedingSuperheat Checking Subcooling 109A TWO Speed Application Checking Expansion Valve OperationFixed Orifice Restrictor Devices Subcooling Formula = Sat. Liquid Temp. Liquid Line Checking Restricted Liquid Line Overcharge of RefrigerantNON-CONDENSABLES Compressor Burnout Accessories for lines greater than 80 feet Refrigerant PipingLong Line SET Application R-410A Tube Sizing Installation Requirements AIR Handler External Static Initial System Charging Coil Static Pressure Drop Total External StaticStatic Pressure Drop Accessories Wiring Diagrams ALL Fuel System AFE18-60A Control Board 10kw and Below, One Stage Electric Heat OT/EHR18-60 #2 GRD PLM PLF XFMR-R XFMR-C After Installing Optional Heat KIT, Mark AN X Provided Above HKR Heat Kit GRD PLM PLF