Main Burner Flame Check, Temperature Rise Check

Main Burner Flame Check

Flames should be stable, soft and blue (dust may cause orange tips but they must not be yellow) and extending directly outward from the burner without curling, floating or lifting off.

Temperature Rise Check

Check the temperature rise through the unit by placing thermometers in supply and return air registers as close to the unit as possible. Thermometers must not be able to sample temperature directly from the unit heat exchangers, or false readings could be obtained.

1.All registers must be open; all duct dampers must be in their final (fully or partially open) position and the unit operated for 15 minutes before taking readings.

2.The temperature rise must be within the range specified on the rating plate.

NOTE: Air temperature rise is the temperature difference between supply and return air.

With a properly designed system, the proper amount of temperature rise will normally be obtained when the unit is operated at rated input with the recommended blower speed.

If the correct amount of temperature rise is not obtained, it may be necessary to change the blower speed. A higher blower speed will lower the temperature rise. A slower blower speed will increase the temperature rise.

NOTE: Blower speed MUST be set to give the correct air tempera- ture rise through the unit as marked on the rating plate.

External Static Pressure Check

The total external static pressure must be checked on this unit to determine if the airflow is proper.

Blower Speed Adjustments

WARNING

TO AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRIC SHOCK, REMOVE ELECTRICAL POWER FROM THE UNIT BEFORE CHANGING SPEED TAPS ON THE BLOWER MOTOR.

Refer to the wiring diagram in the appendix to verify speed tap settings.

Blower speeds are to be changed at the ignition control board. Both heat speed and cool speed terminals are supplied on the board along with two unused motor lead terminals.

*PG13(48, 60)***1B, 3A, 4A models are equipped with X-13 motors. X-13 motors are constant torque motors with very low power consumption. This motor is energized by 24V. Adjust the CFM for the unit by changing the 24V low voltage leads to the speed terminal block on the motor.

Heating-White Lead		Cooling-Yellow Lead
T1 - Low Speed		T4 - Low Speed
T2	- Medium Speed	T5 - High Speed
T3	- High Speed

*PG13(48, 60)***1A models are equipped with GE ECM motors. These motors offer greater airflow flexibility as well as dehumidification. The airflow delivery for these models can be adjusted by changing the position of dip switches on a low voltage terminal board. The figure below shows the dipswitch layout on the low voltage terminal board as well as the function of each set of switches. The “HEAT” function

(switches 1 and 2) provides airflow adjustment for heating airflow. The “COOL” adjustment function (switches 5 and 6) provides airflow adjustments for cooling airflow. The “ADJUST” function (switches 7 and 8) will adjust the heating AND cooling airflow +10% or - 15%. The “DELAY” function (switches 3 and 4) is not field adjustable.

To adjust the HEAT, COOL or ADJUST functions, simply change the ON/OFF position of the appropriate dipswitches. The table below shows the ON/OFF combinations for the various switches and the corresponding A, B, C, or D taps. Refer to the Product Data Book applicable to your model for airflow tables and temperature rise. The “Dipswitch Position” table below shows the factory dipswitch settings for each model. The “CFM” table below shows the nominal heating and cooling CFM for each model.

		HEAT		DELAY‡		COOL		ADJUST
	1		2	3	4	5	6	7	8
A	OFF		OFF	OFF	OFF	OFF	OFF	OFF	OFF
B	ON		OFF	ON	OFF	ON	OFF	ON	OFF
C	OFF		ON	OFF	ON	OFF	ON	OFF	ON
D	ON		ON	ON	ON	ON	ON	ON*	ON*

‡Factory Set; not field adjustable * Tap D has no effect on airflow

Dipswitch Settings and Corresponding Tap

Model			DIP SWITCH POSITION
Model	1	2	3	4	5	6	7	8
	1	2	3	4	5	6	7	8
GPG13480701*	ON	ON	OFF	OFF	ON	OFF	OFF	OFF
GPG13480901*	OFF	ON	OFF	OFF	ON	OFF	OFF	OFF
GPG13481151*	ON	OFF	OFF	OFF	ON	OFF	OFF	OFF
GPG13600901*	ON	ON	OFF	OFF	OFF	OFF	OFF	OFF
GPG13601151*	OFF	ON	OFF	OFF	OFF	OFF	OFF	OFF
GPG13601401*	ON	OFF	OFF	OFF	OFF	OFF	OFF	OFF

Model	CFM
Model	HEAT	COOL
	HEAT	COOL
GPG13480701*	1020	1540
GPG13480901*	1140	1540
GPG13481151*	1420	1540
GPG13600901*	1140	1810
GPG13601151*	1420	1810
GPG13601401*	1700	1810

Unit dipswitches are factory set for each model, see label on blower housing for CFM adjustment next to low voltage terminal connections.

NOTE: Heating airflow must be adjusted to provide the tempera- ture rise shown on rating plate.

*PG1360***1A ONLY: Low stage airflow is approximately 75%

of high stage cooling airflow. Example: High stage cooling airflow is 1800 CFM. Low stage cooling airflow is 0.75*1800 CFM = 1350 CFM.

The adjustment factors for the ADJUST function are A = 1, B =

1.10(+10%) and C = 0.85 (-15%). The D tap for the ADJUST function has no effect on airflow. Example: Airflow tables indicate 1425 CFM. With the ADJUST set to B tap, the CFM becomes 1.10*1425 CFM = 1568 CFM.

GPG13 specifications

Goodman Manufacturing is a prominent name in the HVAC industry, known for providing high-quality heating and cooling systems. Among their diverse lineup, the Goodman GPG13 stands out as a reliable packaged gas/electric unit. This model is particularly designed for residential and light commercial applications, ensuring a perfect blend of efficiency, comfort, and affordability.

One of the primary features of the Goodman GPG13 is its energy efficiency. The unit has a Seasonal Energy Efficiency Ratio (SEER) rating that helps homeowners reduce their energy costs while providing optimal cooling performance during warmer months. With a cooling capacity ranging from 2.5 to 5 tons, it effectively meets the cooling requirements of various sizes of homes or commercial spaces.

The Goodman GPG13 employs advanced technology to guarantee reliable operation. Its quiet operation is a significant advantage, thanks to the sound-dampening design of the unit’s compressor and fan. Moreover, the unit is equipped with a high-efficiency scroll compressor, which is known for its durability and consistent performance. This technology not only enhances the unit’s longevity but also ensures that homeowners enjoy a peaceful indoor environment.

In terms of construction, the Goodman GPG13 is built to last. The unit features a heavy-gauge galvanized steel cabinet with a powder-coated finish, which protects it from the elements and corrosion. This sturdy design ensures that the GPG13 can withstand various environmental conditions without compromising performance. Additionally, it has an easy-access control panel, simplifying maintenance and servicing tasks.

Another noteworthy characteristic of the Goodman GPG13 is its environmentally friendly refrigerant, R-410A. Unlike older refrigerants, R-410A has a lower environmental impact and contributes to ozone layer protection. This focus on environmental responsibility is essential in today’s green-conscious society and reflects Goodman’s commitment to sustainable practices.

The GPG13 is also equipped with a reliable multi-speed blower motor that enhances comfort by providing consistent airflow throughout the space. This capability allows homeowners to maintain desired temperatures while maximizing energy savings.

Overall, the Goodman GPG13 packaged gas/electric unit is an excellent choice for those seeking efficiency, durability, and comfort in their heating and cooling systems. With its range of advanced features and technologies, it stands as a testament to Goodman Manufacturing's dedication to quality and customer satisfaction in HVAC solutions.