4 09 is for the month it was built 04 is for the year it was built SERIAL NUMBER09 is for the month it was built04 is for the year it was built
5 12 & 10 SEER Packaged Gas Electric Fits in a standard size Pickup!47” Wide
6 12 & 10 SEER Packaged Gas Electric Cooling Features:Convenient access panels to the compressorHigh-efficiency Scroll and Energy-efficient reciprocating compressor.Copper tube/aluminum fin coil.Liquid line filter drier.Fully charged R-22 system.Louvered Guard Protection
7 10 & 12 SEER Packaged Gas Electric Control Features:Convenient access panels to the Evaporator coil and control section.Direct spark ignition system, which includes a microprocessor based control for the entire ignition sequence, all blower operation and all safety circuits.Diagnostic Indicator provided for trouble shooting system faults.
8 Design Objectives 2 – 5 ton Single Phase 3, 4 & 5 ton Three Phase 12 &10 SEER Cooling, 80% AFUE HeatingCapable of expansion to higher SEER ratingsConvertibleEasy Access Service PanelsArchitectural Gray
9 12 & 10 SEER Packaged Gas Electric Heating Features:Convenient access panels to the heating section.Redundant gas valve, natural gas and easy conversion to propane.Power-assisted combustion.L.P. Conversion Kit Available12 & 10 SEER units offer a durable, T-140 Aluminized Steel tubular heat exchanger.California Low Nox Approved
10 We begin with T-140 Aluminized Steel tubes Wrinkle-bend ProcessWe begin with T-140 Aluminized Steel tubesManufacturing stress including wall-thinning is minimizedWrinkles are placed precisely where we want themWrinkles promote turbulence to aid heat transfer and efficiency
11 Dual-diameter/Muffler-joint We apply a patented process to join tubes1-3/4” diameter fits inside a 1-1/4” diameterTubes are joined with a proprietary processVelocity of combustion products is optimizedEfficiency is maximized
12 Tubular Technology Renders Clamshell Obsolete 800°F1,000°F1,000°F300°F300°F300°F300°F110°FNon-uniform thermal growthEyelets can popStress-cracks can formTube can grow in length and diameterGrowth is uniform at the cross-sectionNo opportunity for stress-cracks
20 12 & 10 SEER Packaged Gas Electric McDaniel MetalsAccessoriesBy
21 10 & 12 SEER Packaged Gas Electric Blower Features:Convenient access panels to the blower section.Filter rack included on 12 SEER large (4 &5 ton) chassis.Easy removal of blower with two screws.Multi-speed evaporator blower.Fully insulated with blankets of fiberglass.
22 12 & 10 SEER Packaged Gas Electric Base Features:042 Aluminized Steel Bottom/Base Pan2” High Base RailsShipped with four panels
25 Electrical208/230 Volt Power connections and 460 Volt available in 5 Ton Cool only modelSingle Phase and Three phase models availableMaximum Over current Protection determined by model
26 WiringAll wiring should be made in accordance with the National Electrical Code.Wire sizes and over current protection should be determined from the unit nameplate ampacity.Wire sizes should not be smaller than recommended by these two sources.All exterior wiring must be within approved weatherproof conduit.The unit must be permanently grounded in accordance with local codes.
44 Pressure Switch CheckMeter on AC Voltage Setting ; between Quick Connect on Pressure Switch and GroundPrior to Operation check for open side of Pressure Switch (No Voltage Present)When Pressure Switch Closes 24 Volts should be present on N/O sideIssue: Watch for switch bounce on windy daysIssue: Watch for P.S. drop-out for low pressure
50 Understanding ECM Motors What does ECM mean?How does the ECM work?Variable Speed vs Constant Volume.What is PWMHow does the ECM sense static pressure?Troubleshooting ECM motors.In this discussion we will be covering the following topics;What does ECM mean? Who came up with that acronym?How does the ECM work?Variable Speed vs. Constant Volume.What is PWMHow does the ECM sense static pressure?Troubleshooting ECM motors.
53 B18099-18 Control B18099-21 Has Green Diagnostic LED B Cannot beused alone; must be usedwith B ControlB Control is setup for 50Hz Operation andfor use in Europe (CE Mark)
54 Control Environment +80 to -40 Degrees Celsius (+176 to -40 F) 10% to 95% R.H. Non-Condensing98 to 132VAC Line Voltage18 to 30VAC Control VoltageFrequency - 60HzUL & cUL Approved
55 General Functions “W” Input Off (Call for Heat Satisfied) “W” Input On (Call for Heat)Checks to see pressure switch openTurns on InducerPressure Switch Closes; 15 Second Pre-PurgeStarts Sparking & Gas Valve Turns On for 7 SecondsFlame Sensed Anytime During SparkGas Valve Stays OnBlower Comes On after 30 Second Delay“W” Input Off (Call for Heat Satisfied)Gas Valve De-Energizes ImmediatelyInducer Remains on for 29 Second Post PurgeIndoor Blower De-Energizes after Selected Blower Off Delay
56 General Functions Continued.... Single Compressor Mode (Tab is not Broken)“Y” Input On (Call for Cooling)3 Minute Anti-Short Cycle Timer from the time the compressor was last on.Cooling Speed Blower after a 7 second delay“Y” Input Off (Call for Cool Satisfied)Cooling Speed Fan Off after 60 Second DelayDual Compressor Mode (Tab is Broken)1st Stage Compressor is Energized Externally“Y” Input On for 2nd Stage Cooling after 7 Second Delay“Y” Input Off ; Cooling Speed Fan off after 60 Second Delay
57 General Functions Continued.... “G” Input On (Call For Fan)Fan Immediately on Heat Speed“G” Input OffFan Immediately Shuts OffIf “Y” input Occurs During “G”Blower Switches to Cooling SpeedIf “W” Occurs During “G”Blower off when Heat Blower On Delay BeginsContinuous Fan Operates while control is in Heat Mode LockoutTest/Speed-Up Bypasses Compressor Short-Cycle TimerIf Shorted for Over 4 Minutes ; Control Ignores = Operates Normal
58 Diagnostic Codes Steady On = Normal Operation in Standby 1 Flash = Lockout for Ignition Failure or Flame Dropouts3 Trials for Ignition or 5 Flame Losses2 Flashes = Pressure Switch Open with Inducer On3 Flashes = Pressure Switch Stuck Closed with Inducer Off4 Flashes = Limit Switch OpenHeat Speed Blower and Inducer On Until Limit ClosesBlower Runs thru Off Delay; Inducer runs thru 29 Second Post-Purge5 Flashes = Flame Detected with Gas Valve OffBlower and Inducer Both On Until No Longer SensedControl Locks out But Senses Limit and FlameControl is Reset By Removing Power or after 1 Hour Automatically6 Flashes = Compressor Delayed for Short Cycle/Staging TimerStatus Light Off = Board Hardware Fault
59 Flame Sense Checking Digital Meter set for lowest uA Setting Meter in series with Flame Sense Rod WireControl must read a minimum of .5uA during flame sensing periodAverage current reading is around 3-5uA.Control constantly monitors Flame during heating operationIssue: Flame Sense Rod gets corroded ; Clean w/ steel woolIssue: Flame Rod not situated in Flame Correctly
60 Ground Check Meter set to Ohms or Resistance Setting Place Meter from P1-6 or COM quick connect to chassis groundReading should be near Zero ohmsIssue: COM Quick Connect Loose ; causes board resetting when blower startsIssue: Flame Sensing problems if improper grounding in system
61 GPG TROUBLESHOOTING THEORY OF OPERATION Control of heating, cooling, and fan functions in response to a standard thermostatDirect spark ignition using a microprocessor to control timing, flame sensing, and ignition retriesMonitoring of system pressure switch and limit switchControl of gas valve, indoor fan, and induced draft motor based on the thermostat demand and status of safety inputsControl of compressor contactorDiagnostic indicator to provide information on power to the control and control status
62 GPG TROUBLESHOOTING Summary of Timing Functions (in seconds) Function Signal NameDelay-OnDelay-OffHeat SpeedMV (1)30120, 135,150 (2)Cool SpeedY760Compressor60 (3)180 (4)Induced Draft15 (5)291. Heat speed delay on and off occur only after flame has been sensed and main valve (MV) is energizedSelectable with jumpers3. Indicates timing when “Two Stage Comp” tab is broken off, timer becomes delay on make4. Indicates timing when “Two Stage comp”tab is not broken off, timer becomes compressor lock out between cycles(I.e. Minimum timing between compressor cycles)5. Prepurge timing (not delay on )
63 GPG TROUBLESHOOTING Inputs Limit Switch –The limit switch is connected to control pins 4 and 5. The limit switch is connected is electrically between fused 24 VAC and the thermostat RPressure Switch-The pressure switch is connected on pins 6 and 8. The pressure switch “W and the gas valve relay contactsThermostat call for Heat “W”-24 VAC thermostat input. Connection via pin 10Thermostat call for cool “Y”- 24 VAC thermostat input connections via pin 11Thermostat call for fan “G”- 24 VAC thermostat inputs. Connection via pin 7Flame Sense- Open circuit flame sense voltage shall be approximately 100 VAC . The control requires at least .5 microamperes DC flame current to guarantee flame is sensed
66 12 & 10 SEER Packaged Gas Electric Leading Warranties:12 SEER offers an Aluminized Steel Heat Exchanger with a 20Year limited Warranty and10 Year Limited Warranty on the Compressor and Parts.10 SEER offers an Aluminized Steel Heat Exchanger with a 20Year limited Warranty and 5 Year Limited Warranty on the Compressor and Parts.