Goodman Mfg CPG SERIES AIR Flow Adjustments, PSC Motor, Motor Sheave Adjustments, Maintenance

Page 22

To connect manometer to gas valve:

1.Back outlet pressure test screw (inlet/outlet pressure boss) out one turn (counterclockwise, not more than one turn).

2.Attach a hose and manometer to the outlet pressure boss of the valve.

To remove manometer from gas valve:

1.Remove manometer hose from outlet pressure boss.

2.Turn outlet pressure test screw in to seal pressure port (clockwise, 7 in-lb. minimum).

3.Turn on electrical power and gas supply to the system.

4.Turn on system power and energize valve.

5.Using a leak detection solution or soap suds, check for leaks at pressure boss screw. Bubbles forming indicate a leak. SHUT OFF GAS AND FIX ALL LEAKS IMMEDIATELY.

CAUTION

TO PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE GAS MANIFOLD PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING PLATE. ONLY MINOR ADJUSTMENTS SHOULD BE MADE BY ADJUSTING THE GAS VALVE PRESSURE REGULATOR.

AIR FLOW ADJUSTMENTS

The drive on the supply fan is typically set in the middle of the RPM range. The drive motor sheave pitch diameter is field adjustable for the required airflow. Refer to “Drive Adjustments” section below.

When the final adjustments are complete, the current draw of the motor should be checked and compared to the full load current rating of the motor. The amperage must not ex- ceed the service factor stamped on the motor nameplate. The total airflow must not be less than that required for op- eration of the electric heaters or the furnace.

If an economizer is installed, check the unit operating bal- ance with the economizer at full outside air and at minimum outside air. Upon completion of the air flow balancing, we recommend replacing the variable pitched motor sheave with a properly-sized fixed sheave. A matching fixed sheave will provide longer belt and bearing life and vibration free opera- tion. Initially, it is best to have a variable pitched motor sheave for the purpose of airflow balancing, but once the balance has been achieved, fixed sheaves maintain alignment and minimize vibration more effectively. For direct drive units, move fan speed wire.

NOTE: Never run CFM below 350 CFM per ton, evaporator freezing or poor unit performance is possible.

PSC MOTOR

Adjust the CFM for the unit by changing the speed tap of the indoor blower motor at the heat or cool tap on the control board connection with the one of the speed taps on “M1” or “M2” (Black-High Speed, Blue-Medium Speed, Red-Low Speed).

EEM Motor

Adjust the CFM for the unit by changing the position of the low voltage leads on the motor terminal block. Green is for Fan Only. Yellow is for Cooling and Heat Pump Heating. Re- fer to Appendix A for blower performance at each speed tap. NOTE: If more than one lead is energized simultaneously, the motor will run at the higher speed.

MOTOR SHEAVE ADJUSTMENTS

VL, VM, & 2VP VARIABLE PITCH KEY TYPE MOTOR SHEAVES

The driving and driven motor sheaves should be in align- ment with each other and the shafts parallel.

VL & VM SHEAVES ADJUSTMENT

1.Loosen set screw “B” using a 5/32" Allen key.

2.Making half or full turns from closed position, adjust sheave pitch diameter for desired speed. DO NOT OPEN MORE THAN FIVE FULL TURNS.

3.Tighten set screw “B” securely over flat.

4.Carefully put on belts and adjust belt tension. DO NOT FORCE BELTS OVER GROOVES.

5.Ensure all keys are in place and the set screws tight before starting drive. Recheck set screws and belt tension after 24 hours service.

NOTE: Future adjustments should be made by loosening the belt tension and increasing or decreasing the pitch diameter of the sheave by half or full turns as required. Readjust belt tension before starting drive.

C

B

VL & VM

Sheave

NOTE: Do NOT operate sheave with flange projecting beyond the hub end.

MAINTENANCE

WARNING

HIGH VOLTAGE!

DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

22

Image 22
Contents CPG Series Replacement Parts Safety InstructionsGeneral Information High VoltageUnit Location Clearances Roof Curb POST-INSTALLATION Checks Roof TOP Duct ConnectionsRigging Details Weights shown are belt drive with no accessories Electrical Wiring Power and Low Voltage Block ConnectionsGAS Supply Piping Areas Without Convenience OutletInlet GAS Pressure Propane GAS Installations GAS Piping ChecksCirculating AIR and Filters Venting Condensate Drain ConnectionSTARTUP, ADJUSTMENTS, and Checks PRE-STARTUP InstructionsThree Phase Models Only Percent voltage unbalance Must not exceed 2%Rollout Protection Control Manifold Pressure Check PSC Motor Normal Sequence of Operation Flame Sensor and Ignition Electrode LocationTroubleshooting Check rollout limitInput Rating AdjustmentInput Btu/Hr = Maintenance AIR Flow AdjustmentsMotor Sheave Adjustments PSC MotorCabinet Finish Maintenance Burner Flame CPG036 Direct Drive Down Shot CPG036 Direct Drive HorizontalCPG048 Direct Drive Down Shot CPG048 Direct Drive HorizontalCPG060 Direct Drive Down Shot CPG060 Direct Drive Horizontal CPG060 Standard Belt Drive Horizontal CPG036 Standard Belt Drive HorizontalCPG048 Standard Belt Drive Horizontal CPG072 Standard Belt Drive Horizontal806 744 CPG060 High Static Belt Drive Down Shot CPG036 High Static Belt Drive Down ShotCPG048 High Static Belt Drive Down Shot CPG072 High Static Belt Drive Down ShotCPG060 High Static Belt Drive Horizontal CPG036 High Static Belt Drive HorizontalCPG048 High Static Belt Drive Horizontal CPG072 High Static Belt Drive HorizontalAppendix B Electrical Data Appendix C Unit Dimensions Appendix D Wiring Diagrams CPG036480451D Single Phase 240V/60HZ Direct Drive IICINSTALLER/SERVICEMAN 208-240/1/60 0140L00510 REV aCPG0360480901D Single Phase 240V/60HZ Direct Drive 208-240/1/60 0140L00506 REV a CPG0060*1D Single Phase 240V/60HZ Direct Drive YL/PK240/1/60 0140L00429 REV B CPG060*3D Three Phase 208-230V/60HZ Direct IICCPG060*3D Three Phase 208-230V/60HZ Direct Drive IICCPG036048*3D Three Phase 208-230V/60HZ Direct Drive 208-240/3/60 0140L00512 REV a CPG036048*3D Three Phase 230V/60HZ Direct Drive 208-240/3/60 0140L00507 REV a 460-575/3/60 0140L00870 REV a 460-575/3/60 0140L00870 REV a IIC 208-240/3/60 0140L00981 REV a CPG0360480454B Three Phase 575V/60HZ Belt Drive GND Comp460-575/3/60 0140L00871 REV a CPG0360480453B Three Phase 240V/60HZ Belt Drive 208-240/3/60 0140L00979 REV a Goodman Manufacturing Company, L.P
Related manuals
Manual 32 pages 5.71 Kb

CPG SERIES specifications

Goodman Manufacturing has long been a trusted name in the HVAC industry, known for delivering reliable and efficient heating and cooling solutions. Among its impressive lineup is the CPG series, a collection of packaged units that cater to a wide range of residential and commercial applications. The CPG series is designed with the latest technologies and features, making it an ideal choice for those seeking comfort and performance.

One of the most significant characteristics of the CPG series is its energy efficiency. Engineered to meet rigorous energy standards, these units utilize advanced refrigerant technologies that not only lower energy consumption but also contribute to reducing environmental impact. The high-efficiency scroll compressor within the CPG series is designed to operate quietly and smoothly, ensuring that homeowners enjoy a comfortable indoor environment without disruptive noise.

The CPG series also stands out with its robust construction. Each unit is crafted from durable materials that can withstand various weather conditions, ensuring longevity and reliability. The all-aluminum evaporator coil enhances corrosion resistance, prolonging the unit's lifespan and maintaining optimal performance throughout its operation.

In terms of features, the CPG series offers an integrated microprocessor control system that optimizes performance based on real-time environmental data. This smart technology allows for accurate temperature control and improved efficiency by adapting to changing conditions. Furthermore, the series provides multiple capacity options, making it flexible for various building sizes and requirements.

Ease of installation and maintenance is another hallmark of the CPG series. These packaged units are designed for quick setup, reducing labor costs and installation time. Additionally, the access panels on the units are strategically placed, facilitating easier maintenance and servicing. This advantage not only enhances user convenience but also ensures that the units operate efficiently for years to come.

Moreover, the CPG series supports various accessories and enhancements, such as advanced filtration systems and programmable thermostats, allowing users to customize their HVAC system based on specific needs and preferences.

In conclusion, the Goodman CPG series embodies a perfect blend of efficiency, durability, and technology. With its focus on energy savings and user-friendly design, it represents a sound investment for those seeking superior HVAC solutions for their homes or commercial spaces. Whether it's for new construction or an upgrade to an existing system, the CPG series offers performance and reliability that customers can depend on.