ICP PAB240, RAMA20 Installation Instructions Manual
• Safety Labeling & Rules
• Installation Requirements
• Location / Clearances
',× _ ,
• Wiring '_
• Air Distribution
• Ductwork Connections
• Economizer Accessory
• Start-Up
• Maintenance
• Hoisting / Rigging
MODELS
PAB240 RAMA20
513 01 14 01 01 7/1/97
LP1
Table of Contents
1. Safety Labeling and Signal Words ........................... 2
Danger, Warning and Caution
...............................................................
Signal Words
...............................................................
Signal Words in Manuals ............................................. 2
Product Labeling ................................................... 2
Danger Label ...................................................... 2
Warning Label ..................................................... 2
Caution Label ...................................................... 2
2. Unit Dimensions ......................................... 3
3. Safe Installation Requirements ............................. 4
4. Location And Set-up ..................................... 5
Access Panels ...................................................... 5
Clearances ......................................................... 5
Minimum Clearances to Combustible and
non-Combustible Construction (Horizontal Flow) ................... 6
Minimum Clearances to Combustible and
non-Combustible Construction (Downflow) ........................ 6
Installation ........................................................ 7
Ground Level Installation ............................................ 7
Rooftop Installation ................................................. 7
Hoisting ........................................................... 7
Converting to Horizontal Operation ................................... 7
Condensate Drain .................................................. 7
5. Electrical Wiring ......................................... 9
Line Voltage Wiring ................................................. 9
Line Connections ................................................... 9
Converting 230V Units to 208V ....................................... 9
Field Installed Equipment ........................................... 10
Low Voltage Wiring ................................................. 10
Low Voltage Wiring With Economizer Option ........................... 10
Thermostat ........................................................ 10
Heat Anticipator ................................................... 10
Final Check ........................................................ 10
6. Air Distribution System ................................... 11
Ductwork .......................................................... 11
Ductwork Connections .............................................. 11
Filters ............................................................ 11
Circulating Blower ................................................. 11
Determining Blower Speed ........................................... 11
7. Adjustable Belt Drive Blower ............................... 14
8. Economizer Accessory ..................................... 16
Static Additions .................................................... 16
Theory of Operation ................................................ 16
Sequence of Operation .............................................. 17
9. Start-up Procedure ...................................... 18
Blower and Phasing Check ........................................... 18
Cooling Checks ..................................................... 19
10. Operation And Maintenance Instructions ................... 20
Turning Off the Unit ................................................ 20
Heating ........................................................... 20
Cooling ........................................................... 20
Starting the Unit After Shutdown ..................................... 20
Heating ........................................................... 20
Cooling ........................................................... 20
Thermostat Fan Switch Operation ..................................... 20
Adjusting Room Temperatures ........................................ 20
Monthly Maintenance and Inspection Checks ........................... 21
Air Filters (Factory Installed) ......................................... 21
Disposable Replacement Filters ....................................... 21
Cooling Season Checks (Monthly) ..................................... 21
Condenser Coil ..................................................... 21
Condensate Drain .................................................. 21
Annual Maintenance and Inspection ................................... 21
Circulating Air Blower .............................................. 21
11. Rigging Instructions ..................................... 23
I Single Package Air Conditioners Installation Instructions !
1. Safety Labeling and Signal Words
Danger, Warning and Caution
The signal wordsDANGER, WARNING and CAUTION are
used to identify levels of hazard seriousness. The signal
word DANGER is only used on product labels to signify an
immediate hazard. The signal words WARNING and
CAUTION will be used on product labels and throughout
this manual and other manuals that may apply to the
product.
Signal Words
Danger Label
White lettering on a black background except the word
DANGER which is white with a red background.
DANGER - Immediate hazards which WILL result in
severe personal injury or death.
WARNING - Hazards or unsafe practices which COULD
result in severe personal injury or death.
CAUTION - Hazards or unsafe practices which COULD
result in minor personal injury or product or property
damage.
Warning Label
White lettering on a black background except the word
WARNING which is black with an orange background.
Signal Words in Manuals
The signal word WARNING is used throughout this manual
in the following manner:
The signal word CAUTION is used throughout this manual
in the following manner:
CAUTION
Product Labeling
Signal words are used in combination with colors and/or
pictures on product labels. Following are examples of
product labels with explanations of the colors used.
Caution Label
White lettering on a black background except the word
CAUTION which is black with a yellow background.
12J
_ Installation Instructions Single Package Air Conditioners I
2. Unit Dimensions
(Dimensions from base level)
All dimensions in inches.
B
C
A
Line Voltage 2 1/2"
D
G
F
UNIT SIZE A B C / D E
20TON 4-1/2 68-1/8 117 T 41-3/16 5-1/8
U.,TS,Z.t_ o .
20 TON 21-9/16 21-9/16 41-3/16
I Single Package Air Conditioners
3. Safe Installation Requirements
Installation Instructions
Installation or repairs made by unqualified
persons can result in hazards to you and others.
Installation must conform with local building
codes or, in the absence of local codes, with
National Electrical Code ANSI/NFPA 70-1990 or
current edition. In Canada the National Standard
CAN/CGA 1-B149.1 or current edition and CSA
C.22.1 - Canadian Electrical Code Part 1 or
current edition.
The information contained in this manual is
intended for use by aqualified service technician
familiar with safety procedures, equipped with
the proper tools and test instruments.
Failure to carefully read and follow all instruc-
tions in this manual can result in furnace
malfunction, property damage, personal injury
and/or death.
Figure ! 1 Access Panels
Installation MUST conform to the most current
version of the following standards or a superseding
standard.
In the United States:
• National Electrical Code ANSI/NFPA 70-1990
In Canada:
• CSA C.22.1 - Canadian Electrical Code Part 1.
Seal supply and return air ducts.
NOTE: It is the personal responsibility and obligation of the
customer to contact a qualified installer to ensure that the
installation is adequate and conforms to governing codes
and ordinances.
Filters
Control
Panel
Compressor Condensate
Area See Figure 2 Drain
Access panel for
Line connectios
and low voltage
connections.
Return Air Panel
Supply Air Panel
Blower Access Panel
_ Installation Instructions Single Package Air Conditioners I
4. Location And Set-up
The unit is designed for outdoor installation ONLY. The unit
may be installed on a level concrete mounting base (or
other adequate platform) at ground level oron a flat rooftop
with an adequate platform. If using as a downflow model,
use a roof curb. Typical installations are shown in Figures
3 and 4.
Access Panels
Clearances
The location MUST allow for minimum clearances and
should not be adjacent to a patio or other area where the
unit's operating sound level might be objectionable.
CAUTION
Unit will NOT operate properly without all access
panels in place. Access panels are shown in Figure 1.
Unit MUST NOT be moved unless all access panels are
in place.
Figure 2 I External Refrigeration Access Ports
1
High
System 1
_ System 2
Low
Minimum clearances, as specified in the following tables
and in Figure 3 and 4, MUST be maintained to provide
adequate fire protection, adequate combustion air, and
room for service personnel. In addition, local codes MUST
be observed.
Do NOT install the unit in a location that will permit
discharged air from the condenser to recirculate to the
condenser inlet.
CAUTION
Do NOT operate unit in a corrosive atmosphere
containing chlorine, fluorine, or any other corrosive
chemicals.
I Single Package Air Conditioners
Minimum Clearances to non-Combustible
Construction (Horizontal Flow)
Duct Connection Side (no Economizer) .. 30" (762mm)
Duct Connection Side (with Economizer) 48"(1220mm)
Condenser Side ...................... 30" (762mm)
Side Blower Access Panel Side ......... 30" (762mm)
Top of Unit ........................... 60" (1524mm)
................ with 36" (914mm) maximum horizontal
overhang from duct connection side
Minimum Clearances for
Figure 3 Typical Platform Installation
Installation Instructions !
Minimum Clearances to non-Combustible
Construction (Downflow)
Duct Connection Side (no Economizer) .. 30" (762mm)
Duct Connection Side (with Economizer) . 52" (1321mm)
Condenser Side ...................... 30" (762mm)
Side Blower Access Panel Side ......... 30" (762mm)
Top of Unit ........................... 60" (1524mm)
................ with 36" (914mm) maximum horizontal
overhang from duct connection side
Maximum horizontal
overhang is 36" i
(914mm) from duct
panel side with a mini-
mum 60" (1254mm)
above unit.
60"
30 _
(762mm)
30 _
(762mm)
80-30-17
I NOTE: Call factory for clearances for I
horizontal economizer.
Minimum Clearances for
Figure 4 Typical Downflow Installation
60" (1254mm) above unit; Maximum horizontal overhang
is 36" (914mm) from duct panel side (see NO TAG).
30"
(762mm)
30 _
(762mm)
30"
(762mm)
24"
(610mm)
Return Air
Panel
SupplyAir
Panel
I NOTE: For downflow economizer, allow 52"(1321mm) on duct panel side.
80-30-16
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