Bard PA13601-A, PA13601-B, PA13421-A, PA13481-B, PA13421-B, PA13481-A User Manual

INSTALLATION INSTRUCTIONS

SINGLE PACKAGE

AIR CONDITIONERS

MODELS

PA13241-A

PA13361-A

PA13421-A

PA13481-A

PA13601-A

PA13301-A PA13361-B PA13421-B PA13481-B PA13601-B

	Bard Manufacturing Company	Manual :	2100-467
	Bryan, Ohio 43506	Supersedes:	NEW
	Since 1914 . . . Moving ahead just as planned	File:	Volume II Tab 10
		Date:	03-03-06

© Copyright 2006

Manual	2100-467
Page	1 of 23

CONTENTS

Getting Other Informations and Publications	........ 3
General Instructions
Important ................................................................	4
Shipping Damage ....................................................	4
General ................................................................	4
Field Installed Heater Packages (Optional) .............	4
Installation
Location ................................................................	9
Slab Mounting..........................................................	9
Typical Installations .........................................	9 & 12
Condensate Drain Trap .........................................	12
Air Filters ..............................................................	12
Wiring – Main Power .............................................	13
Wiring – 24V Low Voltage Control Circuit .............	13
Transformer Taps ...................................................	13
Thermostats ...........................................................	13

Figures
Figure 1	Unit Dimensions ......................................	8
Figure 2	Slab Mounting at Ground Level ............	10
Figure 3	Airflow and Service Access
	Clearances ............................................	10
Figure 4	Elevated Mounting Platform ...................	11
Figure 5	Condensate Drain Trap .........................	12
Figure 6	Low Voltage Wiring ...............................	14
Figure 7	Low Ambient Control Wiring .................	17
Figure 8	Fan Blade Setting .................................	18
Figure 9	Brazing Diagram ...................................	19
Figure 10 Control Disassembly .............................		21
Figure 11	Winding Test .........................................	21
Figure 12	Drip Loop ..............................................	21

Start Up and Operation
General ..............................................................	15
Topping Off System Charge...................................	15
Safety Practices.....................................................	15
Start Up Notes .......................................................	15
Three Phase Scroll Compressor Start Up
Information.............................................................	16
Sequence of Operation..........................................	16
Indoor Blower Motor ..............................................	16
Compressor Control Module ..........................	16 & 17
Adjustments ...........................................................	17
Low Ambient Control .............................................	17
Service and Troubleshooting
Service Hints .........................................................	18
Pressure Service Ports ..........................................	18
Refrigerant Charge ................................................	18
Fan Blade Settings ................................................	18
Suction and Discharge Tube Brazing ....................	19
Troubleshooting ECM Blower Motors .............	20-21
Pressure Tables .............................................	22 & 23

Tables
Table 1	Rated CFM & ESP ..................................	4
Table 2	Electrical Specifications ..........................	5
Table 3	Opt. Field Installed Heater Packages .....	6
Table 4	Opt. Field Installed Elec. Heater .............	7
Table 5	Filter Requirements & Sizes .................	12
Table 6	Thermostat Wire Size ...........................	13
Table 7	Wall Thermostat and Subbase
	Combinations ........................................	13
Table 8	Refrigerant Charge ...............................	18
Table 9	Fan Blade Setting Dimensions..............	18
Table 10	Indoor Blower Performance ..................	18
Table 11	Pressure Table ......................................	22
Table 12	Pressure Table ......................................	23

Manual	2100-467
Page	2 of 23

Getting Other Information and Publications

These publications can help you install the air conditioner or heat pump. You can usually find these at your local library or purchase them directly from the publisher. Be sure to consult current edition of each standard.

National Electrical Code ......................	ANSI/NFPA 70
Standard for the Installation ..............	ANSI/NFPA 90A
of Air Conditioning and
Ventilating Systems
Standard for Warm Air ......................	ANSI/NFPA 90B
Heating and Air
Conditioning Systems
Load Calculation for ............................	ACCA Manual J
Residential Winter and
Summer Air Conditioning
Duct Design for Residential ..............	ACCA Manual D

Winter and Summer Air

Conditioning and Equipment Selection

FOR MORE INFORMATION, CONTACT THESE PUBLISHERS:

ACCA	Air Conditioning Contractors of America
	1712 New Hampshire Ave. N.W.
	Washington, DC 20009
	Telephone: [phone]
	Fax: [phone]
ANSI	American National Standards Institute
	11 West Street, 13th Floor
	New York, NY 10036
	Telephone: [phone]
	Fax: [phone]

ASHRAE American Society of Heating, Refrigerating,

and Air Conditioning Engineers, Inc.

1791 Tullie Circle, N.E.

Atlanta, GA 30329-2305

Telephone: [phone]

Fax: [phone]

NFPA	National Fire Protection Association
	Batterymarch Park
	P.O. Box 9101
	Quincy, MA 02269-9901
	Telephone: [phone]
	Fax: [phone]

Manual	2100-467
Page	3 of 23

GENERAL INSTRUCTIONS

IMPORTANT

The equipment covered in this manual is to be installed by trained, experienced service and installation technicians. All duct work, supply and return ducts, must be properly sized for the design air flow requirement of the equipment. ACCA is an excellent guide to proper sizing. All duct work or portions thereof not in the conditioned space should be properly insulated in order to both conserve energy and prevent condensation or moisture damage.

SHIPPING DAMAGE

Upon receipt of equipment, the carton should be checked for external signs of shipping damage. If damage is found, the receiving party must contact the last carrier immediately, preferably in writing, requesting inspection by the carrier’s agent.

FIELD INSTALLED HEATER PACKAGES (OPTIONAL)

These packaged air conditioners are manufactured without supplementary electric heaters. Supplementary heaters are available for simple, fast field installation.

A separate power circuit is required for the supplementary heaters.

IMPORTANT: Refer to Table 1 when designing duct work for maximum available static pressure with heater installed.

Refer to data shown in Table 3 and 4 for proper application information on all available heater combinations and what units they can be used with. It also shows the applicable circuit ampacities, fuse size, and wire size for each heater combination.

GENERAL

The refrigerant system is completely assembled and charged. All internal wiring is complete.

The unit is designed for use with or without duct work. Flanges are provided for attaching the supply and return ducts.

These instructions explain the recommended method to install the air cooled self-contained unit and the electrical wiring connections to the unit.

These instructions and any instructions packaged with any separate equipment required to make up the entire system should be carefully read before beginning the installation. Note particularly “Starting Procedure” and any tags and/or labels attached to the equipment.

While these instructions are intended as a general recommended guide, they do not supersede any national and/or local codes in any way. Authorities having jurisdiction should be consulted before the installation is made.

TABLE 1

RATED CFM AND EXTERNAL STATIC

PRESSURE (ESP)

Model	Rated	Recommended	Rated	Max.
No.	CFM	Airflow Range	ESP	ESP
PA13241	800	Note	0.18	0.50
PA13301	1000	Note	0.23	0.50
PA13361	1100	Note	0.23	0.50
PA13421	1400	Note	0.23	0.50
PA13481	1550	Note	0.28	0.50
PA13601	1650	Note	0.28	0.50

NOTE: ECM motors provide rated CFM up to 0.50 ESP

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Page	Manual
23 of 5	467-2100

TABLE 2

ELECTRICAL SPECIFICATIONS

	Model	PA13241-A	PA13301-A	PA13361-A	PA13361-B	PA13421-A	PA13421-B	PA13481-A	PA13481-B	PA13601-A	PA13601-B
	Electric Rating –	230/208-60-1	230/208-60-1	230/208-60-1	230/208-60-3	230/208-60-1	230/208-60-3	230/208-60-1	230/208-60-3	230/208-60-1	230/208-60-3
	60 Hz – Circuit A
	Operating Voltage Range	197 - 253	197 - 253	197 - 253	187 - 253	197 - 253	187 - 253	197 - 253	187 - 253	197 - 253	187 - 253
	Minimum Circuit Ampacity	15	18	24	17	31	23	34	24	38	26
	BCSC	9	11	15	10	21	15	22	14	26	16
	Field Wire Size *	12	10	8	12	10	10	8	10	8	10
	Ground Wire Size	12	10	8	12	10	10	8	10	8	10
	Delay Fuse – Max. **	20	25	35	30	50	40	55	40	60	40
	Total unit Amps – 230/208	10.8/11.8	13.3/14.8	16.4/18.4	17.0/13.3	16.2/18.1	14.1/15.4	23.0/24.7	16.9/18.0	25.3/28.9	17.7/19.9
	Compressor – Circuit A
	Compressor Type	Recip.	Recip.	Recip.	Recip.	Scroll	Scroll	Scroll	Scroll	Scroll	Scroll
	Volts	230/208	230/208	230/208	230/208	230/208	230/208	230/208	230/208	230/208	230/208
	Rated Load Amps	7.5/8.5	9.5/11	12/14	7.6/8.9	11.8/13.7	8.3/9.6	17/18.7	10.9/12	19.3/22.9	11.7/13.9
	Lock Rotor Amps	48/48	57/57	74/74	75/75	115/115	115/115	117/117	83.1/83.1	134/134	110/110
	Fan Motor and Condenser
	Fan Motor – HP/RPM	1/6 - 825	1/6 - 825	1/6 - 825	1/6 - 825	1/4 - 825	1/4 - 825	1/4 - 825	1/4 - 825	1/4 - 825	1/4 - 825
	Fan Motor Amps	1.1	1.1	1.1	1.1	1.5	1.5	1.5	1.5	1.5	1.5
	Fan – Dia./CFM	24"/2700	24"/2600	24"/2600	24"/	24"/3400	24"/3400	24"/3400	24"/3400	24"/3400	24"/3400
	Motor and Evaporator
	Blower Motor – HP/RPM *	1/3 - VS	1/2 - VS	1/2 - VS	1/2 - VS	1/2 - VS	1/2 - VS	3/4 - VS	3/4 - VS	3/4 - VS	3/4 - VS
	Blower Motor – Amps	2.2	2.7	3.3	3.3	4.3	4.3	4.5	4.5	4.7	4.7
	CFM Cooling & ESP					1400/.23	1400/.23	1500/.28	1500/.28	1700/.28	1700/.28
	Charge (R-410 oz.)	75	85	120	120	160	160	160	160	160	160
	Shipping Weight (pounds)	300	300	350	350

* VS = Variable Speed Programmable Motor

Page	Manual
23 of 6	467-2100

TABLE 3

OPTIONAL FIELD INSTALLED HEATER PACKAGES

ONLY TO BE USED WITH THE MODELS INDICATED

Heater Package	Volts &
Model	Phase	PA13241-A	PA13301-A	PA13361-A	PA13361-B	PA13421-A	PA13421-B	PA13481-A	PA13481-B	PA13601-A	PA13601-B
EHP313-A05	240/208-1	X	X	X
EHP313-A10	240/208-1	X	X	X
EHP313-A15	240/208-1		X	X
EHP313-B09	240/208-3				X
EHP313-B15	240/208-3				X
EHP513-A05	240/208-1					X		X		X
EHP513-A10	240/208-1					X		X		X
EHP513-A15	240/208-1					X		X		X
EHP513-B09	240/208-3						X		X		X
EHP513-B15	240/208-3						X		X		X

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23 of 7	467-2100

TABLE 4

OPTIONAL FIELD INSTALLED ELECTRIC HEATER TABLE

Htr. KW & Capacity

Htr. KW & Capacity

Circuit B

@ 240 Volts

@ 208 Volts

Heater

Heater

240/208V

Unit Volts

Internal

3

1

2

2

Package

Phases

Htr.

Circuit

No. Field

Min.

Max. Over

Field

Model No.

KW

BTUH

KW

BTUH

Amps

Breaker

Circuits

Circuit

Current

Power

Ground

Ampacity

Protection

Wiring

Wire Size

EHP313-A05

240/208-1

5

17,100

3.75

12,800

20.8/18.1

1

26/23

30/25

10/10

10

EHP313-A10

240/208-1

10

34,100

7.50

26,000

41.6/36.2

30/60

1

53/46

60/50

6/8

10

EHP313-A15

240/208-1

15

51,200

11.25

38,400

62.5/54.1

1

79/68

80/70

4/4

8

EHP513-A05

240/208-1

5

17,100

3.75

12,800

20.8/18.1

1

26/23

30/25

10/10

10

EHP513-A10

240/208-1

10

34,100

7.50

26,000

41.6/36.2

30/60

1

53/46

60/50

6/8

10

EHP513-A15

240/208-1

15

51,200

11.25

38,400

62.5/54.1

1

79/68

80/70

4/4

8

EHP313-B09

240/208-3

9

30,700

6.75

23,000

21.7/18.7

None

1

28/24

30/25

10/10

10

EHP313-B15

240/208-3

15

51,200

11.25

38,400

36.2/31.2

1

46/39

50/40

8/8

10

EHP513-B09

240/208-3

9

30,700

6.75

23,000

21.7/18.7

None

1

28/24

30/25

10/10

10

EHP513-B15

240/208-3

15

51,200

11.25

38,400

36.2/31.2

1

46/39

50/40

8/8

10

1Maximum size of the time delay fuse or HACR circuit breaker for protection of field wiring devices.

2Based on wire suitable for 75°C. Other wiring materials must be rated for marked “Minimum Circuit Ampacity” or greater. Based on 75°C copper wire. All wiring must conform to the National Electric Code and all local codes.

3These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electric Code (latest revision), Article 310 for power conductor sizing.

IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with the National Electrical Code and all existing local codes.

FIGURE 1

DIMENSIONS OF UNITS

W

L

D

Compressor

access door

Control panel door

High voltage knockout

Low voltage knockout

Heater package knockout

Heater package access panel

Drain access

F

H

Blower motor
access door	47 11/16"

G

Condenser air intake grille

A

E

B

Supply opening

C

Return opening

Condenser fan

Condenser air intake grille

Unit Dimension Chart

	Unit	Supply Size		Return Size		Unit Overall Dimensions				Unit General Dimensions
		A	C	B	C	H (height)	L (length)	W (width)	D		E	F		G
PA/PH1324,1330,1336		5.875	32.875	13.875	32.875	26.25	53.25	38.125	23.25		1.125	1.375		35.625
PA/PH1342,1348,1360		9.875	37.875	15.875	37.875	33.25	55.25	42.375	30.25		1.5	2.375		38.125
													MIS-2142
Manual	2100-467
Page	8 of 23

INSTALLATION

LOCATION

GENERAL

The unit must be located outside, or in a well ventilated area. It must not be in the space being heated or cooled. A sound absorbing material should be considered if the unit is to be installed in such a position or location that might cause transmission of sound or vibration to the living area or adjacent buildings.

SLAB MOUNTING

A minimum of 24 inches should be provided between the coil inlet and any building surfaces. Provide a minimum of three feet clearance on the service access side of the unit. See Figure 2.

TYPICAL INSTALLATIONS

1.ROOF MOUNTED – The unit is mounted on a sturdy base on the roof of the building. Return air to the unit is brought through a single return grille (grilles with built-in filters are best since they enable easy access for filter changing). Return air ducts are attached to the lower section of the front panel. Supply air is brought from the unit to attic duct work or to a furred down hall. Supply air duct is attached to the top of the front panel.

CAUTION: All outdoor duct work must be thoroughly insulated and weatherproofed. All attic duct work must be thoroughly insulated. Two inch thick insulation with suitable vapor barrier is recommended for both outdoor and attic runs.

In roof top installation, as in all installations, the air conditioner must be level from side to side. However, the unit should have a pitch along the length to assure complete external drainage of precipitation and of defrost condensate.

2.CRAWL SPACE – Duct work installed in crawl space must be well insulated and provided with a vapor barrier. In addition, the crawl space must be thoroughly ventilated and provided with a good vapor barrier as a ground cover. It is most desirable to install the unit will be outdoors rather than inside the crawl space, so that it will be readily accessible for service.

3.SLAB MOUNTED AT GROUND LEVEL – This type installation is ideal for homes with a slab floor construction where a roof mounted unit is not desired. The supply and return duct work can be run through a furred closet space.

4.THROUGH THE WALL – This type installation requires a suitable framework to be fabricated capable of withstanding the unit weight. Normally the unit will be insulated so as to minimize supply and return duct work.

Manual	2100-467
Page	9 of 23

FIGURE 2

SLAB MOUNTING AT GROUND LEVEL

	The distance between	Air Outlet	Side
			View
1 inch clearance	outside wall and unit
	varies with installation
between duct and
	requirements.		Package Unit
any combustible
material if distance
between outside	Supply Duct
wall and unit is less
than 3 feet (needed
on electric heat			Mounting Slab
units only).
	Return Duct
			1/4 inch per foot
			slope away
			from building

Building

Ground Level

FIGURE 3

AIRFLOW AND SERVICE ACCESS CLEARANCES

							and Return Ducts
		Building
							Supply

Nearest Structure

	Control Panel		Compressor	Top
Heater Package				View
	Access	36" min.	Access
Access
Heater Package	Control Panel			24" min.
			Comp-		StructureNearest
				Inlet
			ressor
Blower				Air
and

Blower Motor

			Condenser fan
			and motor access
	Blower Service		from top.
		24" min.	Leave 60" min.
	Access		above fan.
		Air Inlet
		Nearest Structure	MIS-2143

Manual	2100-467
Page	10 of 23

48" min.

48" min.

FIGURE 4

ELEVATED MOUNTING PLATFORM

* 12" min. if in 32°F or lower climate

Poured concrete, brick, or block

* 12" min. if in 32°F or lower climate

Metal frame

Platform can be as shown or solid

Both legs must rest on surface of platform

Both legs must rest

on surface of platform

MIS-2144

* AS REQUIRED

Manual	2100-467
Page	11 of 23

5.OTHER INSTALLATIONS – Many other installations are possible with the packaged air conditioner. No matter what the installation, always consider the following facts:

A.Insure that the discharge air is not obstructed in any way so as to cause operation difficulties.

B.The indoor coil drain pan is equipped with a coupling that must be piped through a condensate drain trap to a suitable drain.

C.Always mount the unit is such a position that it may be easily reached for servicing and maintenance.

D.Insure that the unit is clear so that proper air flow over the outdoor coil will be maintained.

If this unit is operated in cooling below a 55° outdoor ambient temperature, the installation of low ambient controls (CMA-28) to unit is required.

CONDENSATE DRAIN TRAP

It is very important to provide a trap in the condensate drain line to allow a positive liquid seal in the line and assure correct drainage from the coil condensate pan.

Install condensate drain trap shown in Figure 8. Use drain connection size or larger. Do not operate unit without trap. Unit must be level or slightly inclined toward drain. With a trap installed on a unit located in an unconditioned area, water in the trap may freeze. It is recommended that the trap material be of a type that will allow for expansion of water when it freezes.

AIR FILTERS

Air filters for the return air side of the system are not provided as part of these models, and must be field supplied and installed as part of the final installation.

Prior thought should be given to return air location and placement of the air filter(s). The air filter(s) must be of adequate size and readily accessible to the operator of the equipment. Filters must be adequate in size and properly maintained for proper operation. If this is not done, excessive energy use, poor performance, and multiple service problems will result. It is impossible to oversize air filters. Generous sizing will result in cleaner air and coils as well as lower operating costs and extend the time between required changes. Table 5 shows minimum filter areas and recommended filter sizes. Actual filter sizes can vary with the installation due to single or multiple returns utilizing a filter/grille arrangement or being placed immediately ahead of the indoor coil face in the return air duct.

TABLE 5

FILTER REQUIREMENTS & SIZES

	Model No.	Minimum Filter Area	Recommended
			Size
	PA1324	462 Square Inches
	PA1330		15 x 30-5/8 x 1
		(3.21 Square Feet)
	PA1336
	PA1342	608 Square Inches
	PA1348		(2) 16 x 20 x 1
		(4.62 Square Feet)
	PA1360

NOTE: If roof hood accessory is to be used, information on air filters may be found under that heading in this manual. Air filters are supplied as part of that package.

FIGURE 5

CONDENSATE DRAIN TRAP

MIS-136

Manual	2100-467
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WIRING – MAIN POWER

Refer to the unit rating plate for wire sizing information and maximum fuse size. Each outdoor unit is marked with a “Minimum Circuit Ampacity”. This means that the field wiring used must be sized to carry that amount of current. If field installed heaters are added to the basic unit, a second separate power supply circuit will be required. The heater rating plate located adjacent to the basic unit rating plate will show the appropriate circuit ampacity fuse size, etc. (Also see “Electrical Specifications” on pages 5 & 7.) All models are suitable for connection with copper wire only. These instructions must be adhered to. Refer to the National Electrical Code for complete current carrying capacity data on the various insulation grades of wiring material.

The electrical specifications list fuse and wire sizes (75°F copper) for all models including the most commonly used heater sizes.

The unit rating plate lists a “Maximum Time Delay Fuse” or “HACR” type circuit breaker that is to be used with the equipment. The correct size must be used for proper circuit protection and also to assure that there will be no nuisance tripping due to the momentary high starting current of the compressor.

WIRING – 24V LOW VOLTAGE CONTROL CIRCUIT

Five (5) wires should be run from thermostat subbase to the 24V terminal board in the unit. A five conductor, 18 gauge copper, color-coded thermostat cable is recommended. The connection points are shown in Figure 6.

TABLE 6

THERMOSTAT WIRE SIZE

			Maximum
			Distance
Transformer VA	FLA	Wire Gauge	In Feet
		20	45
		18	60
55	2.3	16	100
		14	160
		12	250

TRANSFORMER TAPS

230/208V, 1 phase and 3 phase equipment employ dual primary voltage transformers. All equipment leaves the factory wired on 240V tap. For 208V operation, reconnect from 240V to 208V tap. The acceptable operating voltage range for the 240 and 208V taps are:

TAP	RANGE
240	253 – 216
208	220 – 187

NOTE: The voltage should be measured at the field power connection point in the unit and while the unit is operating at full load (maximum amperage operating condition).

THERMOSTATS

See specific wiring information for the different models, heater KWs, and voltages on unit and heating wiring diagrams.

TABLE 7

WALL THERMOSTAT AND SUBBASE COMBINATIONS

	Thermostat	Subbase	Predominant Features
	8403-049	——	2 stage heat, 2 stage cool,
	1F93-380		Electronic Programmable
	8403-042		2 stage heat, 1 stage cool,
		——	System: Heat-off-cool-Auto Fan: on-auto
	T8511G1070
			Electronic Non-Programmable
	8403-048		1 stage heat, 1 stage cool,
		——	System: Heat-off-cool Fan: on-auto
	T8400C1313
			Electronic Non-Programmable

IMPORTANT NOTE: Only the thermostat and subbase combinations as shown above will work with this equipment. The thermostat and subbase MUST be matched, and correct operation can be assured only by proper selection and application of these parts.

Manual	2100-467
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FIGURE 6

LOW VOLTAGE WIRING

Thermostat Subbase

C

G

R

Y1

Y2

B

W1

W2

W3

E2

L

E

D

IF93-380

A1

P

OR

T8511G1070

C

G

R

Y

B

W1

W2

L

E

OR

T8400C1313

G

R

Y

W

Unit 24V

Terminal C G R Y Y1 B W1 W2 W3 DH D1 L E

Block

REMOVE JUMPER FOR 2 STAGE ELECTRIC HEAT ON UNITS WITH 15 OR MORE KW

Unit Control Panel

MIS-2149

Manual	2100-467
Page	14 of 23

START UP

These units require R-410A refrigerant and polyolester oil.

GENERAL:

1.Use separate service equipment to avoid cross contamination of oil and refrigerants.

2.Use recovery equipment rated for R-410A refrigerant.

3.Use manifold gauges rated for R-410A (800 psi/250 psi low).

4.R-410A is a binary blend of HFC-32 and HFC-125.

5.R-410A is nearly azeotropic - similar to R-22 and R-12. Although nearly azeotropic, charge with liquid refrigerant.

6.R-410A operates at 40-70% higher pressure than R-22, and systems designed for R-22 cannot withstand this higher pressure.

7.R-410A has an ozone depletion potential of zero, but must be reclaimed due to its global warming potential.

8.R-410A compressors use polyolester oil.

9.Polyolester oil is hygroscopic; it will rapidly absorb moisture and strongly hold this moisture in the oil.

10.A liquid line dryer must be used - even a deep vacuum will not separate moisture from the oil.

11.Limit atmospheric exposure to 15 minutes.

12.If compressor removal is necessary, always plug compressor immediately after removal. Purge with small amount of nitrogen when inserting plugs.

TOPPING OFF SYSTEM CHARGE

If a leak has occurred in the system, Bard Manufacturing recommends reclaiming, evacuating (see criteria above), and charging to the nameplate charge. Topping off the system charge can be done without problems.

With R-410A, there are no significant changes in the refrigerant composition during multiple leaks and recharges. R-410A refrigerant is close to being an azeotropic blend (it behaves like a pure compound or single component refrigerant). The remaining refrigerant charge, in the system, may be used after leaks have occurred and then “top-off” the charge by utilizing the charging charts on the inner control panel cover as a guideline.

REMEMBER: When adding R-410A refrigerant, it must come out of the charging cylinder/tank as a liquid to avoid any fractionation, and to insure optimal system performance. Refer to instructions for the cylinder that is being utilized for proper method of liquid extraction.

SAFETY PRACTICES:

1.Never mix R-410A with other refrigerants.

2.Use gloves and safety glasses, polyolester oils can be irritating to the skin, and liquid refrigerant will freeze the skin.

3.Never use air and R-410A to leak check; the mixture may become flammable.

4.Do not inhale R-410A – the vapor attacks the nervous system, creating dizziness, loss of coordination and slurred speech. Cardiac irregularities, unconsciousness and ultimate death can result from breathing this concentration.

5.Do not burn R-410A. This decomposition produces hazardous vapors. Evacuate the area if exposed.

6.Use only cylinders rated DOT4BA/4BW 400.

7.Never fill cylinders over 80% of total capacity.

8.Store cylinders in a cool area, out of direct sunlight.

9.Never heat cylinders above 125°F.

10.Never trap liquid R-410A in manifold sets, gauge lines or cylinders. R-410A expands significantly at warmer temperatures. Once a cylinder or line is full of liquid, any further rise in temperature will cause it to burst.

START UP NOTES

For improved start up performance, wash the indoor coil with dishwasher detergent.

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START UP AND OPERATION

THREE PHASE SCROLL COMPRESSOR START UP INFORMATION

(PA1336, 42, 48 and 60 Models)

Scroll compressors, like several other types of compressors, will only compress in one rotational direction. Direction of rotation is not an issue with single phase compressors since they will always start and run in the proper direction.

However, three phase compressors will rotate in either direction depending upon phasing of the power. Since there is a 50-50 chance of connecting power in such a way as to cause rotation in the reverse direction, verification of proper rotation must be made. Verification of proper rotation direction is made by observing that suction pressure drops and discharge pressure rises when the compressor is energized. Reverse rotation also results in an elevated sound level over that with correct rotation, as well as, substantially reduced current draw compared to tabulated values.

position and the blower is already in operation, then the motor will ramp up to the required speed for cooling.

HEATING (1st Stage) – On a call for heating from the room thermostat (circuit R-W1 makes), the blower will energize (circuit R-G is automatic when R-W1 makes). This will place the system into heating operation to maintain the thermostat set temperature. Note that if the “Fan” switch on the room thermostat is in the “On” position and the blower is already in operation, then the motor will ramp up to the required speed for heating.

HEATING (2nd Stage) – If the operation of the 1st Stage electric heaters will not maintain the set room temperature, then the thermostat will call for additional heat to help maintain the set temperature. On a call for second stage heating from the room thermostat (circuit R-W2 makes), additional electric heaters will be energized if installed.

Verification of proper rotation must be made at the time the equipment is put into service. If improper rotation is corrected at this time there will be no negative impact on the durability of the compressor. However, reverse operation for over one hour may have a negative impact on the bearing due to oil pump out.

NOTE: If compressor is allowed to run in reverse rotation for several minutes the compressor’s internal protector will trip.

All three phase scroll compressors are wired identically internally. As a result, once the correct phasing is determined for a specific system or installation, connecting properly phased power leads to the same Fusite terminals should maintain proper rotation direction.

The direction of rotation of the motor may be changed by reversing any two line connections to the unit.

SEQUENCE OF OPERATION

BLOWER ONLY – When the “Fan” switch on the room thermostat is placed in the “On” position (circuit R-G makes), the blower will energize and run until the “Fan” switch is placed back into the “Auto” position. This will allow for constant air circulation at a lower airflow during times when the unit is not in operation for cooling or heating.

COOLING – On a call for cooling from the room thermostat (circuit R-Y makes), the blower will energize (circuit R-G is automatic when R-Y makes) as well as the compressor, and outdoor fan motor. Note that if the “Fan” switch on the room thermostat is in the “On”

INDOOR BLOWER MOTOR

Some models feature a variable speed (ECM) motor providing high efficiency, low sound levels and soft start capabilities. The motor is self adjusting to provide the proper air flow rate at duct static pressures up to 0.50" WC without user adjustment or wiring changes.

On command from the wall thermostat the motor will start slowly and ramp up to full speed over a period of 1015 seconds.

When the thermostat is satisfied the blower will operate for approximately 1 minute, and then slow down and stop.

COMPRESSOR CONTROL MODULE

The compressor control is an anti-short cycle/lockout timer with high and low pressure switch monitoring and alarm output.

ADJUSTABLE DELAY-ON-MAKE AND BREAK TIMER

On a call for compressor operation the delay-on-make period begins which will be 10% of the delay-on-break setting. When the delay-on-make is complete and the high pressure switch (and low pressure switch if employed) is closed, the compressor contactor is energized. Upon shutdown the delay-on-break timer starts and prevents restart until the delay-on-break and delay-on-make periods have expired.

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HIGH PRESSURE SWITCH AND LOCKOUT

SEQUENCE (Standard Feature)

If the high pressure switch opens, the compressor contactor will de-energize immediately. The lockout timer will go into a soft lockout and stay in soft lockout until the high pressure switch closes and the delay-on- make time has expired. If the high pressure switch opens again in this same operating cycle the unit will go into manual lockout condition and the alarm circuit will energize. Recycling the wall thermostat resets the manual lockout.

LOW PRESSURE SWITCH, BYPASS, AND

LOCKOUT SEQUENCE (Standard Feature)

If the low pressure switch opens for more that 120 seconds, the compressor contactor will de-energize and go into a soft lockout. Regardless the state of the low pressure switch, the contactor will reenergize after the delay-on-make time delay has expired. If the low pressure switch remains open or opens again for longer than 120 seconds the unit will go into manual lockout condition and the alarm circuit will energize. Recycling the wall thermostat resets the manual lockout.

ALARM OUTPUT

Alarm terminal is output connection for applications where alarm signal is desired. This terminal is powered whenever compressor is locked out due to HPC or LPC sequences as described.

NOTE: Both high and low pressure switch controls are inherently automatic reset devices. The high pressure switch and low pressure switch cut out and cut in settings are fixed by specific air conditioner or heat pump unit model. The lockout features, both soft and manual, are a function of the Compressor Control Module.

ADJUSTMENTS

ADJUSTABLE DELAY-ON-MAKE AND DELAY-ON-BREAK TIMER

The potentiometer is used to select Delay-on-Break time from 30 seconds to 5 minutes. Delay-on-Make (DOM) timing on power-up and after power interruptions is equal to 2 minutes plus 10% of Delay-on-Break (DOB) setting:

0.5 minute	(30 seconds)	DOB = 123 second DOM
1.0 minute	(60 seconds)	DOB = 126 second DOM
2.0 minute (120 seconds)		DOB = 132 second DOM
3.0 minute (160 seconds)		DOB = 138 second DOM
4.0 minute (240 seconds)		DOB = 144 second DOM
5.0 minute (300 seconds)		DOB = 150 second DOM

LOW AMBIENT CONTROL

Optional Low Ambient Control

An optional low ambient control is available for both factory and field installed options. The low ambient control is to be applied to the PA13 Series models when operation below 55°outdoor conditions are anticipated. Without this device, the evaporating pressure would fall off, and the indoor coil would ice over.

The fan cycling control cycles the fan motor on, once the liquid refrigerant pressure reaches 350 psig, and off, once it has dropped to 225 psig. It will continue to cycle between these parameters depending on outdoor temperatures and the load/stage of the system.

This cycling maintains a minimum liquid pressure affecting the minimum suction pressure. This effect insures an evaporating temperature that is slightly above the point of ice formation on the evaporator.

This field installed option is Bard Part #CMA-28. See Figure 7.

FIGURE 7

LOW AMBIENT CONTROL WIRING

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SERVICE AND TROUBLESHOOTING

SERVICE HINTS

1.Caution homeowner to maintain clean air filters at all times. Also, not to needlessly close off supply and return air registers. This reduces air flow through the system which shortens equipment service life as well as increasing operating costs.

2.Check all power fuses or circuit breakers to be sure that they are the correct rating.

3.Periodic cleaning of the outdoor coil to permit full and unrestricted airflow circulation is essential.

PRESSURE SERVICE PORTS

High and low pressure service ports are installed on all units so that the system operating pressures can be observed. Pressure tables can be found later in this manual covering all models on cooling cycle. It is imperative to match the correct pressure table to the unit by model number.

FAN BLADE SETTINGS

Shown in Figure 8 are the correct fan blade setting dimensions for proper air delivery across the outdoor coil.

Any service work requiring removal or adjustment in the fan and/or motor area will require that the dimensions below be checked and blade adjusted in or out on the motor shaft accordingly.

FIGURE 8

FAN BLADE SETTING

"B"

“A”

MD-1417BC

REFRIGERANT CHARGE

The correct system R-410A charge is shown on the unit rating plate.

TABLE 8

REFRIGERANT CHARGE

	Model	Rated	95° OD	82° OD
		Airflow	Temperature	Temperature
	PA1324	800	96-97	83-84
	PA1330	1000	94-95	82-83
	PA1336	1100	97-98	85-86
	PA1342	1400	98-99	85-86
	PA1348	1550	98-99	85-86
	PA1360	1650	101-102	88-89

The above liquid line temperatures are based upon 80°F dry bulb/67° wet bulb (50% RH) temperatures and rated airflow across the evaporator during cooling cycle.

TABLE 9

FAN BLADE SETTING DIMENSIONS

Model

Dimension "A"

PA1324

PA1330

PA1336

PA1342

3¼"

PA1348

PA1360

TABLE 10

INDOOR BLOWER PERFORMANCE 1

				2	3	4
	Model	Rated	MAX	Continuous	Rated	Rated
		ESP	ESP	Airflow	Cooling	Heating
					CFM	CFM
	PA1324	0.10	0.50	600	800	800
	PA1330	0.15	0.50	750	1000	1000
	PA1336	0.15	0.50	825	1100	1100
	PA1342	0.20	0.50	925	1400	1400
	PA1348	0.20	0.50	1025	1550	1550
	PA1360	0.20	0.50	1150	1650	1650

1Motor will deliver consistent CFM through voltage supply range with no deterioration (197-253V for all 230/208V models).

2 Continuous CFM is the total air being circulated during continuous (manual fan) mode.

3 Will occur automatically with a call for "Y" for cooling mode operation.

4 Will occur automatically with a call for "W1" for heating mode operation.

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SUCTION AND DISCHARGE TUBE BRAZING

Compliant Scroll compressors have copper plated steel suction and discharge tubes. These tubes are far more rugged and less prone to leaks than copper tubes used on other compressors. Due to different thermal properties of steel and copper, brazing procedures may have to be changed from those commonly used.

•To disconnect: heat joint Areas 2 and 3 slowly and uniformly until braze material softens and the tube can be pulled out of suction fitting. (See Figure 9.)

•To connect:

–Recommended brazing materials: silfos with minimum 5% silver or silver braze material with flux.

–Reinsert tube into fitting.

–Heat tube uniformly in Area 1 moving slowly to Area 2. When joint reaches brazing temperature, apply brazing material. (See Figure 9)

–Heat joint uniformly around the circumference to flow braze material completely around the joint.

–Slowly move torch into Area 3 to draw braze material into joint. (See Figure 9.)

–Do not overheat joint.

FIGURE 9

BRAZING DIAGRAM

MIS-1179

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TROUBLESHOOTING GE ECM™ MOTORS

CAUTION:

Disconnect power from unit before removing or replacing connectors, or servicing motor. To avoid electric shock from the motor’s capacitors, disconnect power and wait at least 5 minutes before opening motor.

Symptom Cause/Procedure

Motor rocks slightly when starting

Motor won’t start

• No movement

•This is normal start-up for ECM

•Check blower turns by hand

•Check power at motor

•Check low voltage (24 Vac R to C) at motor

•Check low voltage connections (G, Y, W, R, C) at motor

•Check for unseated pins in connectors on motor harness

•Test with a temporary jumper between R - G

•Check motor for tight shaft

•Perform motor/control replacement check

•Perform Moisture Check

• Motor rocks,	• Check for loose or compliant motor mount
but won’t start	• Make sure blower wheel is tight on shaft
	• Perform motor/control replacement check
Motor oscillates up	• It is normal for motor to oscillate with no load
& down while being	on shaft
tested off of blower
Motor starts, but
runs erratically
• Varies up and down	• Check line voltage for variation or “sag”
or intermittent	• Check low voltage connections
	(G, Y, W, R, C) at motor, unseated pins in
	motor harness connectors
	• Check “Bk” for erratic CFM command (in
	variable-speed applications)
	• Check out system controls, Thermostat
	• Perform Moisture Check
• “Hunts” or “puffs” at	• Does removing panel or filter reduce
high CFM (speed)	“puffing”?
	- Reduce restriction
	- Reduce max airflow
• Stays at low CFM	• Check low voltage (Thermostat) wires and
despite system call	connections
for cool or heat CFM	• Verify fan is not in delay mode; wait until
	delay complete
	• “R” missing/not connected at motor
	• Perform motor/control replacement check
• Stays at high CFM	• “R” missing/not connected at motor
	• Is fan in delay mode? - wait until delay time
	complete
	• Perform motor/control replacement check
• Blower won’t shut off	• Current leakage from controls into G, Y or W?
	Check for Triac switched thermostat or solid-
	state relay
Excessive noise	• Determine if it’s air noise, cabinet, duct or
	motor noise; interview customer, if necessary
• Air noise	• High static creating high blower speed?
	- Is airflow set properly?
	- Does removing filter cause blower to slow
	down? Check filter
	- Use low-pressure drop filter
	- Check/correct duct restrictions

Symptom Cause/Procedure

•Noisy blower or cabinet • Check for loose blower housing, panels, etc.

•High static creating high blower speed?

-Check for air whistling through seams in ducts, cabinets or panels

-Check for cabinet/duct deformation

• “Hunts” or “puffs” at	• Does removing panel or filter reduce
high CFM (speed)	“puffing”?
	- Reduce restriction
	- Reduce max. airflow
Evidence of Moisture
• Motor failure or	• Replace motor and Perform Moisture Check
malfunction has occurred
and moisture is present
• Evidence of moisture	• Perform Moisture Check
present inside air mover

Do

•Check out motor, controls, wiring and connections thoroughly before replacing motor

•Orient connectors down so water can’t get in

-Install “drip loops”

•Use authorized motor and model #’s for replacement

•Keep static pressure to a minimum:

-Recommend high efficiency, low static filters

-Recommend keeping filters clean.

-Design ductwork for min. static, max. comfort

-Look for and recommend ductwork improvement, where necessary

•Size the equipment wisely

•Check orientation before inserting motor connectors

Don’t

•Automatically assume the motor is bad.

•Locate connectors above 7 and 4 o’clock positions

•Replace one motor or control model # with another (unless an authorized replacement)

•Use high pressure drop filters some have ½" H20 drop!

•Use restricted returns

•Oversize system, then compensate with low airflow

•Plug in power connector backwards

•Force plugs

Moisture Check

•Connectors are oriented “down” (or as recommended by equipment manufacturer)

•Arrange harness with “drip loop” under motor

•Is condensate drain plugged?

•Check for low airflow (too much latent capacity)

•Check for undercharged condition

•Check and plug leaks in return ducts, cabinet

Comfort Check

•Check proper airflow settings

•Low static pressure for lowest noise

•Set low continuous-fan CFM

•Use humidistat and 2-speed cooling units

•Use zoning controls designed for ECM that regulate CFM

•Thermostat in bad location?

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TROUBLESHOOTING GE ECM™ MOTORS Cont’d.

Replacing ECM Control Module

To replace the control module for the GE variable-speed indoor blower motor you need to take the following steps:

1. You MUST have the correct replacement module. The controls are factory programmed for specific operating modes. Even though they look alike, different modules may have completely different functionality.

USING THE WRONG CONTROL MODULE VOIDS ALL PRODUCT WARRANTIES AND MAY PRODUCE UNEXPECTED RESULTS.

2.Begin by removing AC power from the furnace or air handler being serviced. DO NOT WORK ON THE MOTOR WITH AC POWER APPLIED. To avoid electric shock from the motor’s capacitors, disconnect power and wait at least 5 minutes before opening motor.

3.It is usually not necessary to remove the motor from the blower assembly. However, it is recommended that the whole blower assembly, with the motor, be removed from the furnace/air handler. (Follow the manufacturer’s procedures). Unplug the two cable connectors to the motor. There are latches on each connector. DO NOT PULL ON THE WIRES. The plugs remove easily when properly released.

4.Locate the two standard ¼" hex head bolts at the rear of the control housing (at the back end of the control opposite the shaft end). Refer to Figure 10. Remove these two bolts from the motor and control assembly while holding the motor in a way that will prevent the motor or control from falling when the bolts are removed. If an ECM2.0 control is being replaced (recognized by an aluminum casting rather that a deep-drawn black steel can housing the electronics), remove only the hex-head bolts.

DO NOT REMOVE THE TORX-HEAD SCREWS.

5.The control module is now free of mechanical attachment to the motor endshield but is still connected by a plug and three wires inside the control. Carefully rotate the control to gain access to the plug at the control end of the wires. With thumb and forefinger, reach the latch holding the plug to the control and release it by squeezing the latch tab and the opposite side of the connector plug and gently pulling the plug out of the connector socket in the control. DO NOT PULL ON THE WIRES. GRIP THE PLUG ONLY.

6.The control module is now completely detached from the motor. Verify with a standard ohmmeter that the resistance from each motor lead (in the motor plug just removed) to the motor shell is >100K ohms. Refer to Figure 11. (Measure to unpainted motor end plate.) If any motor lead fails this test, do not proceed to install the control module. THE MOTOR IS DEFECTIVE AND MUST BE REPLACED. Installing the new control module will cause it to fail also.

7.Verify that the replacement control is correct for your application. Refer to the manufacturer's authorized replacement list. USING THE WRONG CONTROL WILL RESULT IN IMPROPER OR NO BLOWER OPERATION. Orient the control module so that the 3-wire motor plug can be inserted into the socket in the control. Carefully insert

the plug and press it into the socket until it latches. A SLIGHT CLICK WILL BE HEARD WHEN PROPERLY INSERTED. Finish installing the replacement control per one of the three following paragraphs, 8a, 8b or 8c.

8a. IF REPLACING AN ECM 2.0 CONTROL (control in cast aluminum can with air vents on the back of the can) WITH AN ECM 2.3 CONTROL (control containing black potting for water protection in black deep-drawn steel case with no vents in the bottom of the can), locate the two through-bolts and plastic tab that are packed with the replacement control. Insert the plastic tab into the slot at the perimeter of the open end of the can so that the pin is located on the inside of the perimeter of the can. Rotate the can so that the tab inserts into the tab locater hole in the endshield of the motor. Using the two through-bolts provided with the replacement control, reattach the can to the motor.

THE TWO THROUGH-BOLTS PROVIDED WITH THE REPLACEMENT ECM 2.3 CONTROL ARE SHORTER THAN THE BOLTS ORIGINALLY REMOVED FROM THE ECM 2.0 CONTROL AND MUST BE USED IF SECURE ATTACHMENT OF THE CONTROL TO THE MOTOR IS TO BE ACHIEVED.

DO NOT OVERTIGHTEN THE BOLTS.

8b. IF REPLACING AN ECM 2.3 CONTROL WITH AN ECM 2.3 CONTROL, the plastic tab and shorter through-bolts are not needed. The control can be oriented in two positions 180° apart. MAKE SURE THE ORIENTATION YOU SELECT FOR REPLACING THE CONTROLASSURESTHECONTROL'SCABLECONNECTORS WILL BE LOCATED DOWNWARD IN THE APPLICATION SO THAT WATER CANNOT RUN DOWN THE CABLES AND INTO THE CONTROL. Simply orient the new control to the motor's endshield, insert bolts, and tighten. DO NOT OVERTIGHTEN THE BOLTS.

8c. IF REPLACING AN ECM 2.0 CONTROL WITH AN ECM 2.0 CONTROL (It is recommended that ECM 2.3 controls be used for all replacements), the new control must be attached to the motor using through-bolts identical to those removed with the original control. DO NOTOVERTIGHTENTHEBOLTS.

9.Reinstall the blower/motor assembly into the HVAC equipment. Follow the manufacturer's suggested procedures.

10.Plug the 16-pin control plug into the motor. The plug is keyed. Make sure the connector is properly seated and latched.

11.Plug the 5-pin power connector into the motor. Even though the plug is keyed, OBSERVE THE PROPER ORIENTATION. DO NOT FORCE THE CONNECTOR. It plugs in very easily when properly oriented. REVERSING THIS PLUG WILL CAUSE IMMEDIATE FAILURE OF THE CONTROL MODULE.

12.Final installation check. Make sure the motor is installed as follows:

a.Unit is as far INTO the blower housing as possible.

b.Belly bands are not on the control module or covering vent holes.

c.Motor connectors should be oriented between the 4 o’clock and 8 o’clock positions when the blower is positioned in its final location and orientation.

d.Add a drip loop to the cables so that water cannot enter the motor by draining down the cables. Refer to Figure 12.

The installation is now complete. Reapply the AC power to the HVAC equipment and verify that the new motor control module is working properly. Follow the manufacturer's procedures for disposition of the old control module.

			FigureFigure103		Figureigure 411
		Control Disassembly			Winding Test
				Motor Connector
	Only remove		From Motor	(3-pin)
	Hex Head Bolts	Push until
		Latch Seats
		Over Ramp
			Circuit
			Board
			Motor
	ECM 2.0
					Motor OK when
	Note:				R > 100k ohm
	Use the shorter
	bolts and
	alignment pin
	supplied when				FigureFig re125
	replacing an				Drip Loop
	ECM 2.0		Motor Connector
	control.
			(3-pin)	Back of	Connector Orientation
	ECM			Control	Between 4 and 8 o'clock
	2.3/2.5		Control Connector
			(16-pin)
			Power Connector
			(5-pin)
			Hex-head Screws		Drip Loop

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TABLE 11

PRESSURE TABLE

	COOLING										Air Temperature Entering Outdoor Coil Degree F
		Return Air	Pressure	65°	70°	75°	80°	85°	90°	95°	100°	105°	110°	115°	120°	125°
	Model	Temperature
		75° DB	Low Side	122	125	128	130	133	136	137	139	141	142	144	145	147
		62° WB	High Side	250	269	289	310	332	355	378	403	428	454	482	510	538
	PA1324	80° DB	Low Side	131	134	137	139	142	145	147	149	151	152	154	155	157
		67° WB	High Side	256	276	296	318	340	364	388	413	439	466	494	523	552
		85° DB	Low Side	141	144	147	149	153	156	158	160	162	163	166	167	169
		72° WB	High Side	265	286	306	329	352	377	402	427	454	482	511	541	571
		75° DB	Low Side	127	128	130	131	133	135	137	138	141	143	146	149	151
		62° WB	High Side	263	283	303	324	347	370	394	418	444	470	498	527	555
	PA1330	80° DB	Low Side	136	137	139	140	142	144	146	148	151	153	156	159	162
		67° WB	High Side	270	290	311	332	356	379	404	429	455	482	511	540	569
		85° DB	Low Side	146	147	149	151	153	155	157	159	162	164	168	171	174
		72° WB	High Side	279	300	322	344	368	392	418	444	471	499	529	559	589
		75° DB	Low Side	116	120	122	125	129	131	134	136	137	139	140	142	143
		62° WB	High Side	265	286	306	328	350	373	398	422	448	473	499	527	556
	PA1336	80° DB	Low Side	124	128	131	134	138	140	143	145	147	149	150	152	153
		67° WB	High Side	272	293	314	336	359	383	408	433	459	485	512	541	570
		85° DB	Low Side	133	138	141	144	148	151	154	156	158	160	161	163	164
		72° WB	High Side	282	303	325	348	372	396	422	448	475	502	530	560	590

LOW SIDE PRESSURE +2 PSIG

HIGH SIDE PRESSURE +5 PSIG

(Continued on Page 23 in Table 12)

TABLE 12

PRESSURE TABLE

COOLING

Air Temperature Entering Outdoor Coil Degree F

Return Air

Pressure

65°

70°

75°

80°

85°

90°

95°

100°

105°

110°

115°

120°

125°

Model

Temperature

75° DB

Low Side

62° WB

High Side

PA1342

80° DB

Low Side

67° WB

High Side

85° DB

Low Side

72° WB

High Side

75° DB

Low Side

62° WB

High Side

PA1348

80° DB

Low Side

67° WB

High Side

85° DB

Low Side

72° WB

High Side

75° DB

Low Side

62° WB

High Side

PA1360

80° DB

Low Side

67° WB

High Side

85° DB

Low Side

72° WB

High Side

LOW SIDE PRESSURE +2 PSIG

HIGH SIDE PRESSURE +5 PSIG

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