Payne PA1ZNA048000AAAA, PA1ZNA024000ABAA, PA1ZNA030000AAAA, PA1ZNA036000AAAA, PA1ZNA042000AAAA Installation Guide

...

CONTENTS

Page

SAFETY CONSIDERATIONS ...................... 1 4

I. General ................................... 1

RECEIVING AND INSTALLATION .................. 5-10

I. Step 1 -- Check Equipment .................. 5

II. Step 2 -- Provide Unit Support ............... 5

Ill. Step 3 -- Provide Clearances ................ 5

IV. Step 4 -- Place Unit ........................ 5

V. Step 5 -- Select and install Ductwork .......... 6

VI. Step 6 -- Provide for Condensate

Disposal .................................. 7

VII. Step 7 -- Install Electrical Connections ......... 7

PRE-START-UP ................................. 11

START-UP .................................... 11 14

I. Check for Refrigerant Leaks ................. 11

I1. Start-Up Cooling Section and

Make Adjustments ......................... 11

II1. Refrigerant Charge ......................... 11

IV. Indoor Airflow and Airflow Adjustments ....... 14

V. Unit Controls .............................. 14

VI. Sequence of Operation ..................... 14

MAINTENANCE ................................ 14 17

I. Air Filter .................................. 16

I1. Unit Top Removal (Condenser

Coil Side) ................................. 16

II1. Evaporator Blower and Motor ................ 16

IV. Condenser Coil, Evaporator Coil,

and Condensate Drain Pan .................. 16

V. Condenser Fan ............................ 17

VI. Electrical Controls and Wiring ............... 17

VII. Refrigerant Circuit ......................... 17

VIII. Evaporator Airflow ......................... 17

IX. Metering Devices .......................... 17

X. Liquid Line Strainer ........................ 17

TROUBLESHOOTING COOLING CHART ............ 18

START-UP CHECKLIST .......................... CL-1

NOTE TO INSTALLER -- Before the installation, READ THESE INSTRUCTIONS CAREFULLY AND COMPLETELY.

Also, make sure the Owner's Manual and Sex-vice Instruc tions are left with the unit after installation.

Cancels: New II PAIZ 24-1

11/15/97

Fig. 1 -- Unit PAIZ (Size 036 Shown)

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical compo-

nents. Only trained and qualified workers should install, repair, or service air-conditioning equipment.

Untrained workers can perform basic maintenance flmc-

tions of cleaning coils and filters. All other operations should be performed by trained service people. When working on air- conditioning equipment, pay attention to precautions in the

literature, tags and labels attached to the unit, and other safety precautions that may apply.

Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for unbrazing operations. Have fire

extinguisher available for all brazing operations.

I. GENERAL

The PA1Z cooling unit is flflly selficontained and designed for outdoor installation, See Fig. 1. As shown in Fig. 2 4, units

are shipped in a horizontal discharge configuration fox"instal lation on a ground level slab. All units can be field converted

to downflow discharge configurations for rooftop applications with a field-supplied plenum.

247.6

[97R]

L,r

CONI_=NSER O0_L

_294 0 _4080

[11.51] [16.N6]

0 " n

EVAPORATOR

REAR VIEW

[_O,NB)

3S6 DIA. DUCT OPENIN6S [14,0]

il --y-- II

REQUIRED CLEARANCES TO COMBUSTIBLE MAT'L -- mm (in.)

Top of Unit ...................................... O

Duct Side of Unit .................................. O

Side Opposite Ducts ................................ 0

Bottom of Unit .................................... 0

NEC REQUIRED CLEARANCES -- mm (in.)

Between Units, Power Entry Side ............. 1066.8 (42.00)

Unit and Ungrounded Surfaces, Power

Entry Side ............................. 914.0 (36.00)

Unit and Block or Concrete Walls and Other

Grounded Surfaces, Power Entry Side ......... 1066.8 (42.09)

REQUIRED CLEARANCES FOR SERVICING -- mm (in.)

812.5 [31.RN|

Condenser Coil Access Side ................. 762.0 (30.00)

Power Entry Side ......................... 762.0 (30.00)

(Except for NEC Requirements)

Unit Top ................................ 914.0 (36.00)

Side Opposite Ducts ....................... 762.0 (30.00)

LEGEND

NEC -- National Electrical Code

NOTES:

1. Clearances must be maintained to prevent recircuIation of air from outdoor-fan discharge, with the exception of the condenser coil (914 mm [36 in.]). A removable fence or barricade requires no

clearance.

2. Dimensions are in millimeters. Dimensions in ( ) are in inches.

BOTTOM

LEFT SIDE VIEW

UNIT ELECTRICAL UNIT w'r

PAIZ CHARACTERISTICS Ib kg

024 208/230-1-60 222 10! 030 208/230-1-60 236 107 036 208/230-1-60, 208/230-3-60 250 114

OLOWER, CONTROL DOX AND [VAP COIL

ADDERS _ANRL

FRONT VIEW

26 57 I D -/

U.O4N] RIGHT SIDE VIEW

CONDENSATE DRAIN

CENTER OF GRAVITY -- mm (in.) X Y Z

355.6 (14.00) 508.0 (20.00) 241.3 (9.50)

355.6 (!4.00) 508.0 (20.00) 241.3 (9.50)

Fig. 2 -- Base Unit Dimensions, PAIZ024-036

--2--

COIL

2476

C9,7S]

_2940 _4080

[II,5?] [15,06]

REAR VIEW [14.ol

J295.0

t_O,98J

BOTTONI 0T UNIT

f\ 1

356.B UIA,

DUCTOPENINGS

812.5

131._9]

BOTTON OF UNIT

REQUIRED CLEARANCES TO COMBUSTIBLE MAT'L -- mm (in.)

Top of Unit ...................................... O

Duct Side of Unit .................................. O

Side Opposite Ducts ................................ 0

Bottom of Unit .................................... 0

NEC REQUIRED CLEARANCES -- mm (in.)

Between Units, Power Entry Side ............. 1066.8 (42.00)

Unit and Ungrounded Surfaces, Power

Entry Side ............................. 914.0 (36.00)

Unit and Block or Concrete Walls and Other

Grounded Surfaces, Power Entry Side ......... 1066.8 (42.09)

REQUIRED CLEARANCES FOR SERVICING -- mm (in.)

Condenser Coil Access Side ................. 762.0 (30.00)

Power Entry Side ......................... 762.0 (30.00)

(Except for NEC Requirements)

Unit Top ................................ 914.0 (36.00)

Side Opposite Ducts ....................... 762.0 (30.00)

LEGEND

NEC -- National Eiectrical Code

NOTES:

1. Clearances must be maintained to prevent recircuIation of air from outdoor-fan discharge, with the exception of the condenser coil (914 mm [36 in.]). A removable fence or barricade requires no

clearance.

2. Dimensions are in millimeters. Dimensions in ( ) are in inches.

LEFT SIDE VIEW

UNIT ELECTRICAL UNIT WT

PA1Z CHARACTERISTICS Ib kg

042 208/230-1-60, 208/230-3-60 297 135 048 208/230-1-60, 208/230-3-60 310 141

BLOWER, CONTROL BOX AND

EVAPORATORC01L ACCESS PANEL

COMPRESSOR PAH£

FI[L_ ZNTRY

SERVIC[ PORTS

FRONT VIEW

CENTER OF GRAVITY -- mm (in,)

X Y Z

355.6 (14.00) 508.0 (20.00) 304.8 (12.00)

Fig. 3 -- Base Unit Dimensions, PAIZ042,048

_R3.5

[2 S0}

--3--

117.B

[4.B3]

352.5

;.88)

.44]

_35Z8

H3.Sfl

" z

REARVIEW

O01LFVAPORATOR_ ._

_352,r

_537

[5038!

[BSR]

[Lit3

-I

88,9 ]

(3.501

76G

IZ?

REQUIRED CLEARANCES TO COMBUSTIBLE MAT'L -- mm (in.)

Top of Unit ...................................... O

Duct Side of Unit .................................. O

Side Opposite Ducts ................................ 0

Bottom of Unit .................................... 0

NEC REQUIRED CLEARANCES -- mm (in.)

Between Units, Power Entry Side ............. 1066.8 (42.00)

Unit and Ungrounded Surfaces, Power

Entry Side ............................. 914.0 (36.00)

Unit and Block or Concrete Walls and Other

Grounded Surfaces, Power Entry Side ......... 1066.8 (42.00)

REQUIRED CLEARANCES FOR SERVICING -- mm (in.)

Condenser Coil Access Side ................. 762.0 (30.00)

Power Entry Side ......................... 762.0 (30.00)

(Except for NEC Requirements)

Unit Top ................................ 914.0 (36.00)

Side Opposite Ducts ....................... 762.0 (30.00)

LEGEND

NEC -- National Electrical Code

NOTES:

1. Clearances must be maintained to prevent recirculation of air from outdoor-fan discharge, with the exception of the condenser coil (914 mm [36 in.]). A removable fence or barricade requires no

clearance.

2. Dimensions are in millimeters. Dimensions in ( ) are in inches.

i _______________________

LEFT SIDEVIEW

COMPRESSOR

FIELD ENTRY

SERVICE PORTS

FRONT VIEW

8_2,5

[31.R9]

BOTTOH

CONTROL BOX AND EVkP. COIL

ACCESS PANEL

POWER ENTRY

(f:)s,°'"X

68.0 _ _549.G [2.72] [21.GI]

[0 8B]

LOW VOLTAGE ENTRY

• \

22,2 DIA.

_25.4

[I.00]

UNIT ELECTRICAL UNIT vv'r CENTER OF GRAVITY -- mm (in.) PA1Z CHARACTERISTICS Ib kg X Y Z

060 230-1-60, 208/230-3-60, 460-3-60 350 159 355.6 (!4.00) 508.0 (20.00) 355.6 (14.00)

Fig. 4 -- Base Unit Dimensions, PAIZ060

--4--

RECEIVING AND INSTALLATION

I. STEP I--CHECK EQUIPMENT

A. Identify Unit The unit model number and serial number are stamped on

the unit identification plate. Check this information against shipping papers.

B. Inspect Shipment

Inspect fox" shipping damage while unit is still oi1 shipping pallet. If unit appears to be damaged or is torn loose fi'om its

securing points, have it examined by transportation inspec tars before removal. Fox,yard claim papers directly to trans

portation company. Manufacturer is not responsible for any damage incurred in transit.

Check all items against stripping list. hmnediately notify yotxr local representative if any item is missing.

To prevent loss or dan]age, leave all parts in original pack- ages until installation.

II. STEP 2 -- PROVIDE UNIT SUPPORT A. Slab Mount

Place the unit on a rigid, level surface, suitable to support the unit weight. The flat surface should extend approxi

mately 2 in. beyond tire unit casing on the 2 sides. The duct connection side and condensate drain connection sides should

be flush with the edge of the flat surface. A concrete pad or a suitable fiberglass mounting pad is recommended.

A 6 in. wide gravel apron should be used around the flat sur- face to prevent airflow blockage by grass or shrubs. Do not

secure the unit to the flat surface except where required by local codes.

The unit should be level to within 1/a inch. This is necessary for the unit drain to function properly.

III. STEP 3 -- PROVIDE CLEARANCES

The required minimum service clearances and clearances to combustibles are shown in Fig. 2-4. Adequate ventilation and

condenser air must be provided. The condenser fan pulls air through the condenser coil and

discharges it through tire fan on the top cover. Be sure that the fan discharge does not recirculate to the condenser coil.

Do not locate the unit in either a corner or under an over- head obstruction. The minimmn clearance under a partial over-

hang (such as a normal house overhang) is 48 in. above the unit top. The maximum horizontal extension of a partial over-

hang must not exceed 48 inches.

Do not place the unit where water, ice, or snow from an

overhang or roof will damage or flood the unit. The unit may be installed on wood flooring or on Class A, B, or C roof cov

ering materials.

IV. STEP 4 -- PLACE UNIT Unit can be moved with tire handholds provided in the unit

basepan. Refer to Table 1 for operating weights. U:se extreme

caution m prevent (tamaqe when movJI\_ the unit. Unit mu_st rolnaJi1 ill all u[)r_q]lt posJHoi1 duriil_ _1]] nlovillg oDer_lHolls.

The unit must be level for proper condensate drainage; the ground level pad must be level before setting the unit in place.

When a field-fabricated support is used, be sure that the sup- port is level and that it properly supports the unit.

Table 1 -- Physical Data

UNIT PAIZ 024 030 036 042 048 060 OPERATING WEIGHT (Ibs) 222 236 250 297 310 350 COMPRESSOR TYPE Reciprocating

REFRIGERANT R-22

Charge (Ibs) 2.8 [ 3.9 4.7 [ 4.4 I 6.1 I 7.5

REFRIGERANT METERING DEVICE Acutrol TM System CONDENSER COIL "opper Tubes, Aluminum Plate Fins

Rows,,.Fins/in. 1...!7 1...!7 2...17 1...17 2...!7 2...17

Total Face Area (sq ft) 6.7 7.9 6.2 11.1 8.6 10.7

CONDENSER-FAN MOTOR Pro )elier

CFM 1600 2000 2000 2600 2600 2800 Nominal Rpm 825 1!00 1100 1100 1!00 1100

Motor Hp 7_ ¼ ¼ _¼ ¼ ¼

Diameter (in.) 20 20 20 20 20 20

EVAPORATOR COIL _opper Tubes, Aluminum Plate Fins

Rows,,.Fins/in. 2...15 3...!5 3...15 3...15 3...!5 4...15

Total Face Area (sq ft) 2.8 2.8 3.1 3.9 4.3 4.9

EVAPORATOR-FAN MOTOR Direct Drive

Blower Motor Size (in.) 10 x 8 10 x 8 10 x 8 10 x 9 10 x 9 10 x 10

Nominal Cfm 800 1000 !200 1400 1600 2000

Rpm Range 550-1000 550-1000 800-1050 800-1050 !000-1100 950-1100

Number of Speeds 3 3 3 3 2 3*

Factory Speed Setting Low Med Low Med Low Low

Motor Hp ¼ ¼ ½ _½ % 1

CONNECTING DUCT SIZES Round Square

Supply Air (in.) 14 !3.9 x !3.9

Return Air (in.) 14 !3.9 x 27.8

FIELD-SUPPLIED RETURN AIR FILTER1"

Throwaway (in.) 24 x 24 24 x 24 24 x 24 24 x 24 24 x 30 24 x 30

"460-v motors are 2-speed only.

1-Required filter sizes shown are based on the ARI (Air Conditioning and Refrigeration Institute) rated airflow at a velocity

of 300 ft!min for throwaway type or 450 ft/min for high capacity type. Recommended filters are 1-in. thick,

--5--

V. STEP 5 -- SELECT AND INSTALL DUCTWORK

The design and installation of the duct system must be in accordance with:

• the standards of the NFPA (National Fire Protection Association) for installation of nonresidence type air con ditioning and ventilating systems;

• NFPA 90A or residence-type, NFPA 90B; and/or local codes and residence-type, NFPA 90B;

• and/or local codes and ordinances.

Select and size ductwork, supply-air registers and return air grilles according to ASHRAE (American Society of

Heating, Refrigeration, and Air Conditioning Engineers) rec- ommendations.

Use the duct flanges provided on the supply and return air openings on the side of the unit. See Fig. 2 4 for connection sizes and locations. The 14tin. round duct collars (size 024-

048 units) are shipped inside the unit attached to the indoor blower. They are field-installed and must be removed fl'om

the indoor cavity prior" to start up, even if they are not used for"installation.

A. Install Flanges for Ductwork Connections (PAIZ060 Only)

The PA1Z060 units are shipped with flanges which must be field-installed on the unit.

To install unit flanges:

1. Five pieces of flange are shipped on the return air open

ing of the unit. Remove the flanges from the shipping position. See Fig. 5. Screws are field-supplied.

2. One piece of flange is used as it is shipped (straight). Bend the other 4 pieces at right angles.

3. Install the straight flange on the right side of the return air opening in holes provided. See Fig. 6. Flanges

should stick out from unit to allow for connection of ductwork.

4. Install 2 hand formed flanges onto return air opening in holes provided to form a rectangle around the return

air opening.

5. Install remaining 2 hand-formed flanges around dis- charge air opening in holes provided.

6. Ductwork can now be attached to flanges.

When designing and installing ductwork, consider the following:

• All units should have field-supplied filters installed in the return-air side of the unit. Recommended sizes fox"filters

are shown in Table 1.

• Avoid abrupt duct size increases and reductions. Abrupt change in duct size adversely affects air performance.

IMPORTANT: Use flexible connectors between ductwork and unit to prevent transmission of vibration. Use suitable gas- kets to ensure weathertight and airtight seal.

• Size ductwork for cooling air quantity (cfln). The mini- mum air quantity for proper electric heater operation is

listed in Table 2. Heater limit switches may trip at air quan- tities below those recommended.

HAND FORM

STRAIGHT PIECE

Fig. 6 -- Flanges Installed on PAIZ060 Units

FIVE PIECES OF DUCT FLANGE ATTACHED HERE FOR SHIPMENT

Fig. 5 -- Shipping Location of Duct Flanges

(Size 060 Only)

Fig. 7 -- Area Not to be Drilled More than 3/4-in.

--6--

+ 14 hidden pages

Payne PA1ZNA048000AAAA, PA1ZNA024000ABAA, PA1ZNA030000AAAA, PA1ZNA036000AAAA, PA1ZNA042000AAAA Installation Guide

Specifications and Main Features

Frequently Asked Questions

User Manual