Carrier 50GX060300, 50GX036300, 50GX042300, 50GX048300, 50GX024300 Installation Guide

...

NFATUNG & COOLING

SingMe Packaged EMectric CooMing Units

\isit_ _ ?_ carrier.corn

Installation, Start-Up, and Operating

50GS Sizes 018-060, 50GX Sizes 024-060

50GS, 50GX

NOTE: Read the entire instruction manual be%re starting the installation.

This symbol -->indicates a change since the last issue.

TABLE OF CONTENTS

SAFETY CONSIDERATIONS 1 Introduction 2

RE( EIVING AND INSTALLATION .......................................... 2

(beck Equipment ...................................................................... 2

IDENTIFY UNIT ................................................................ 2

INSPECT SHIPMENT ........................................................ 2

Provide Unit Support ................................................................ 2

ROOF (LTRB ....................................................................... 2

SLAB MOUNT ................................. 2

GROE_D MOL_T ............................... 2

Provide Clearances ................................... 2

Field Fabricate Ductwork .......................... 2

Rig and Place Unit ................................... 2

INSPE( TION ................................... 3

INSTALLATION ................................ 3

Connect Condensate Drain ........................... 5

Install Duct Connections ............................ 6

CONFIGURING [NITS FOR DOVv_FLOW (VERTI-

CAL) DISCHARGE .............................. 7

Install Elect*ical Connection ........................... 9

HIGH-VOLTAGE CONNECTIONS ................. 9

SPE(IAL PRO(EDURES FOR 208-V OPERATION, l0

CONTROL VOLTAGE CONNECTIONS ............ l0

STANDARD CONNE( TION 10

TRANSFORMER PROTECTION i0

PRE-START-UP !0 START-UP 13

CHE(K FOR REFRIGERANT LEAKS 13

START UP <OGLING SECTION AND MAKE ADJUST°

MENTS ......................................... 13

CHECKING (OGLING CONTROL OPERATION .... 13

CHECKING AND ADJUSTING REFRIGERANT

CHARGE ..................................... 14

INDOOR AIRFLOW AND AIRFLOW ADJUST°

MENTS ...................................... 14

For 208/230V ................................. !4

FOR 460-V GE MOTORS ......................... 14

COOLING SEQ[ EN(E OF OPERATION .......... 16

MAINTENANCE ................................... 18

AIR FILTER ................................. 22

EVAPORATOR BLOWER AND MOTOR ......... 22

CONDENSER (OIL, EVAPOP, ATOR COIL, AND CON-

DENSATE DRAIN PAN ........................ 23

CONDENSER FAN .............................. 23

ELECTRICAL CONTROLS AND WIRING ......... 24

REFRIGERANT CIRCUIT ...................... 24

METERING DEVICE ACUTROL DEVICE ........ 24

LIQUID LINE STRAINER ...................... 24

Troubleshooting ..................................... 24

Start=[ p Checklist ..................................... 24

NOTE TO INSTALLER Before the installation, READ THESE INSTRU(TIONS CAREF[LLY AND (OMPLETELY Also,

make sure the User's Manual and Replacement Guide are left with the unit after installation

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical components Only trained and qualified personnel should install, repair, or service air-conditioning equipment.

Unhained personnel can perfb_n basic maintenance functions of cleaning coils and filters. Al! other operations should be performed by trained service personnel. When working on air-conditioning

equipment, observe 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 fbr unbrazing operations. Have fire extinguisher available fk)r all brazing operations. Consult a qualified installer or service agency fk)r infornmtion or assistance. The qualified in- staller or agency must use only factory=authorized kits or acces- sories when modifying this product.

EVAPORATOR AIRFLOW ...................... 24 Fig. 1--Unit 80GS and 80GX

C99001

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

PC 101 CatNog No. 535-00078 Printed in USA Form 50GS.GX-3SI Pg 1 11-02 Replaces: 50GS,GX-2SI

Be%re per%truing service or maintenance operations on

system, mm off power to m_iL Turn off accessory heater power switch, if applicable. Electrical shock can cause personal injury.

Recognize safety information. This is the saf?ty-alert symbol_ When you see this symbol in instrucfions or manuals, be alert to

the potential fbr personal injury.

Understand the signal words DANGER, WARNING, CAUTION, and NOTE. These words are used with the safety-alert symbol.

DANGER identifies the most serious hazards which will result in

severe personal ir!imy or death. WARNING signifies a hazard which could result in personal injury or death. CAUTION is used to identify unsafB practices which would result in minor personal

injury or product and property damage. NOTE is used to highlight

suggestions which will result in enhanced installation, reliability_

or operation.

These instrucfions cover minimum requirements and confbrm to

existing national standards and safety codes. In some instances, these instructions exceed certain local codes and ordinances,

especially those that rnay not have kept up with changing residen- tial constroction practices. We require these instn/ctions as a

minimum fbr a saf_ installation.

_NTRODUCTION

The 50GS and 50GX units (see Fig. 1) are fully self:contained, and

designed for outdoor installation. See Figs. 2 arid 3 for unit

dimensions. All unit sizes have discharge openings for both horizontal and downftow configurations, and are factouj shipped with all downflow duct openings covered. Units may be installed

either on a rooftop, ground-level cement slab, or directly on the

ground if local codes permit. (See Fig. 4A fbr roof curb dinaen=

sions.)

RECEBVING AND INSTALLATION

Step 1--Check Equipment

IDENTIFY UNIT

The unit model number and serial number are stamped on the unit

identification plate. Check this infbrmation against shipping pa= pers

INSPE( T SHIPMENT

Inspect for shipping damage while unit is still on shipping pallet

If unit appears to be damaged or is torn loose from its anchorage, have it examined by tlansportation inspectors before removal Fopxard claim papers directly to transportation company Manu=

facmrer is not responsible for any damage lucre'red in transit

(heck all items against shipping list Immediately notif}- the nearest Can'ier Air ( onditioning office it"any item is missing. To prevent toss or damage, 1cave all parts in original packages until

installation

Step 2--Provide Unit Support ROOF CURB

Install accesso U root" curb in accordance with instructions shipped with curb (See Fig. 4A) Install insulation, cant strips, roofing, and

flashing. Ductwork must be attached to curb

mMPORTANT: The gasketing of the unit mthe roof cm'b is critical

for a watertight seal. Install gaskefing material supplied with the roof curb. Improperly applied gasketing also can result in air teaks

and poor unit perfbrmance.

Cm'b should be level to within 1/4 in. (See Fig. 5A). This is necessary fbr unit drain to fhnction properly. Refer to accesso W

roof curb installation instructions fbr additional infbm_ation as required

SLAB MOUNT Place the unit on a solid, level concrete pad that is a minimurn of

4 in. thick with 2 in. above grade (See Fig. 5B). The slab should extend approximately 2 in. beyond the casing on all 4 sides of the unit. Do not secure the unit to the slab except when required by

local codes. GROUND MOUNT

The unit may be installed either on a slab or placed directly on the ground if local codes permit. Place the unit on level ground prepared with gravel for condensate discharge.

Step a--Provide Clearances

)"he required minimum service clearances are shown in Fig. 2 & 3. Adequate ventilation and outdoor air must be provided. The outdoor fhn &aws air through the outdoor coil and discharges it

through the top fan grille. Be sure that the fan discharge does not recirculate to the outdoor coil. Do not locate the unit in either a

comer or under an overhead obstruction. The rninimum clearance under a partial overhang (such as a nomaal house overhang) is 36

in. above the unit top. The rnaximum horizontal extension of a partial overhang must not exceed 48 in. For extended overhangs, provide a minirnm*n clearance of 48 in.

INPORTANT: Do not restrict outdoor airflow. An air restriction at either the outdoor=air inlet or the fire discharge may be

detrimental to compressor lift. Do not place the unit where water, ice, or snow fiom an overhang

or roof will damage or flood the unit. Do riot install the unit on carpeting or other combustible materials. Stab=mounted units should be at least 4 in. above the highest expected water and nmoff

levels. Do not use unit if it has been under water. Step 4-==Field Fabricate Ductwork

Secure a11 ducts to roof curb arid building stnlcmre on vertical discharge units Do t_nf connecf duct_ork to _mir For horizontal applications, unit is provided with flanges on the horizontal

openings. All ductwork should be secured to the flanges. Insulate and weatherproof all external ductwork, joints, and roof openings with counter flashing and mastic in accordance with applicable

codes. Ducts passing through an unconditioned space must be insulated

and covered with a vapor barrier. If a plenum remm is used on a vertical unit, the return should be ducted through the roof deck to comply with applicable fire codes. A rninimun_ clearance is not required around ductwork. Cabinet retort>air static shall not exceed -.25 in. wg.

Step 5--Rig and Pmaee Unit

Rigging and handling of this equipment can be hazardous for many reasons due to the installation location (roof?_, elevated stn/cmres,

etc.) Only trained, qualified crane operators and ground support staff

should handle and install this equipment. When working with this equipment, observe precautions in t!-le

literature, on tags, stickers, and labels attached to the equipment, and any other safety precautions that might apply.

Follow all applicable safety codes. Wear safety shoes and work gloves.

D /ENS!ONS it\ [] ARE IN INCHES _EV_ORa_CO!L

706

[2 78]

{

[16OR]4064

CONDENSER

TOP ViEW

IIR39

2263

[48 28]

FRONT VHEW

REQUHREDCLEARANCETO COMBUSTHBLEMATL.

TOP OF UNIT .................................................. 1400 [355 6]

DUCT SIDE OF UNIT ............................................ .200 [50.8]

SIDE OPPOSITE DUCTS .............................................................. 1400 [355 6]

BOTTOM OF UNIT ................................................ .050 [12.7]

ELECTRIC HEAT PANEL ....................................... 3600 [914 4]

NEC. REQUIRED CLEARANCES.

BETWEEN UNITS, POWER ENTRY SIDE ................................... 4200 [1066 8]

UNIT AND UNGROUNDED SURFACES, POWER ENTRY SIDE 3600 [914 0] UNIT AND BLOCK OR CONCRETE WALLS AND OTHER

GROUNDED SURFACES, POWER ENTRY SIDE ........................ 4200 [1066 8]

UNIT

80GS0t8 80GS024

80GS030

SOGS03G

80GS042 80GX024

80GX030

50GX035

EL_=CTRICAL CHARACTERBSTICS

208/230-1-60 208/230-1-60

208/230-1-60, 208/230-3-60 208/230-1-60, 208/230-3-60, 460-3-60 208/230-1-60, 208/230-3-60, 460-3-60

208/230-1-60

208/230-1-60, 208/230-3-60 208/230-1-60, 208/230-3-60, 460-3-60

INCHES [mm]

UNIT WEIGHT

lb. kg

254 115.2 260 117.9

258 117.0 268 121.6 294 133.3 270 122.5

291 132.0 299 135.6

Fig. 2-- 50GS018o042 and 50GX024o036 Unit Dimensions

Accessory lifting kit is only to bc usd with Small Packaged

units wNch have a composite base pan with molded rigging

holds.

INSPECTION Prior to initial use, and at mommy intervals, all rigging brackets

and straps should bc visually inspected _br any damage, evidence

402 O [15 83]

17 7

4 63)

88 ;/ [3 48]

_249 6_550 5 2496

[9 83] [21 67] [9 83]

REAR VIEW

i.. ._ so

1222

[4 8!

REQUHREDCLEARANCEFOR OPERATION AND SERVHCBNG

EVAR COIL ACCESS SIDE. ........................................ 3&00 [914.0]

POWER ENTRY SIDE. ................................................ 4200 [106&6]

(EXCEPT FOR NEC REQUIREMENTS)

UNIT TOP ................................................................... 4&00 [!21&2]

SIDE OPPOSITE DUCTS ........................................... 3&00 [914_0]

DUCT PANEL ....................................................................... 1200 [304_8] *

_MINIMUM DISTANCES: IF UNF IS PLACED LESS THAN 3048 [12.00] FROM

WALL SYSTEM, THEN SYSTEM PERFORMANCE MAYBE COMPROMISE

UNIT HEIGHT

IN. (MM)

_A_

35.02 (889.5)

37.02 (940.3)

35.02 (889.5)

37.02 (940.3)

39.02 (991.1)

35.02 (889.5)

20.0 (508.0)

19.0 (482.6)

2010 (508.0)

19.0 (482.8)

18.5 (469.9)

19.5 (495.3)

RHOHT SHDE VmEW

CENTER OF GRAWTY

iN. (NM)

13.0 (330.2) 15.0 (381.0)

13.0 (330.2) 15.o(381.o)

14.o (355.6) laO (381.o)

14.o (355.6) 13.o (330.2)

14.5 (368.3) 16.o (40614)

15.5 (393.7) 17.6 (447.0)

15.25 (387.4) 16.5 (419.1)

Y Z

of wear, structural deformation, or cracks Particular attention should be paid to excessive wear at hoist hooking points and toad support areas Brackets or straps showiug any kind of wear in (hose

areas must not be used and should be discarded INSTALLATION

1 Position the lifting bracket assembly around the base of the

m-dr. Leave the top shipping skid on the unit to act as a spreader bar Be sure the strap does not twist.

0 20)

INCHES [mm]

C99007

r 2 ] RI URN

1!6_00_

COMPREGSORIBLOWER,ELECTRIC IiEAT \

_0006 [42 94]

& ELECTRIC ACCESS \

TOP VIEW

I}93 9 [47003

C01L

4000

880

[3 481

DIMENSONS R {] ARE N NCHES

REAR VIEW

POWR ENTRY

6202

[Z4 42]

[44 22i \\

LEFT SIDE VIEW _2_o_o8._ FRONT VIEW

REQUIRED CLEARANCE TO COMBUSTIBLE MATL

TOP OF UNIT ................................................................................... 1400 [355 6]

DUCT SIDE OF UNIT ......................................................................... 200 [50.8]

BIDE OPPOSITE DUCTS ................................................................ 1400 [355 6]

BOTTOM OF UNIT ............................................................................. 050 [12.7]

ELECTRIC HEAT PANEL ................................................................. 3600 [914 4]

NEC. REQUIRED CLEARANCES.

BETWEEN UNITS, POWER ENTRY SIDE .................................... 42.00 [1066 8]

UNIT AND UNGROUNDED SURFACES, POWER ENTRY SIDE .36.00 [914.0] UNIT AND BLOCK OR CONCRETE WALLS AND OTHER

GROUNDED SURFACES, POWER ENTRY SIDE ......................... 42.00 [106B 8]

UNIT

50GS048 50GS060

50GX042 50GX048 80GX060

ELECTRICAL CHARACTERISTICS

208/230-1-60, 208/230-%60, 460-%60 208/230-1-60, 208/230-3-60,460-3-60 208/230-1-60, 208/230-%60,460-%60 208/230-1-60, 208/230-%60, 460-%60 208/230-1-60, 208/230-%60, 460-%60

• 4 \\ [48 28] \ DIIAI[_ OUIL[I

190 [0¸?5) N PT

INCHES [mm]

UNIT WEIGHT

lb. kg

324 145 389 176

321 146 326 148 399 181

Fig. 3-- 80GS048-060 and 80GX042-060 Unit Dimensions

202 [088] OIA HOLE

CON [ROL ENIRY

_2263

I [(21J

02GI _ ..........

[12 84]

1343]

i02 ?

[481}

RIGHT SIDE VIEW

REQUIRED CLEARANCE FOR OPERATION AND SERVICING

EVAR COIL ACCESS SIDE ............................................................ 36.00 [914.0]

POWER ENTRY SIDE .................................................................... 36.00 [914.0]

(EXCEPT FOR NEC REQUIREMENTS)

UNIT TOP ....................................................................................... 48.00 [1219 2]

SIDE OPPOSITE DUCTS .............................................................. 36.00 [914.0]

DUCT PANEL ................................................................................. 12.00 [304.8] *

_MINIMUM DISTANCES: IF UNIT IS PLACED LESS THAN 3048 [12 00] FROM

WALL SYSTEM, THEN SYSTEM PERFORMANCE MAYBE COMPROMISE

UNIT HEIGHT

IN,(MN)

"A"

38.98 (990.2)

42.98 (1091.1)

20.0 (508.0)

19.0 (482.6)

20.5 (520.7)

19.5 (495.3)

20.5 (520.7)

CENTER OF GRAVITY

IN. (MM}

1710(432.0) 17.0 (432.0)

16.0 (406.0) 17.0 (432.0)

16.75 (425.5) 16.6 (421.6)

17.6 (447.6) 18.0 (457.2)

16.2 (412.8) 17.6 (447.0)

Y Z

INCHES [mm]

50 _ [0 20]

C99006

2, Place each of the _bur (4) metal lifting brackets into the

rigging holds inthe composite pan

3, Tighten the ratchet strap unit tight, Lifting b*ackets should be

secure inthe rigging holds

4, Attach the clevis or hook of sufficient strength to hole in the

lifting bracket (See Fig. 6).

5, Attach sa_kty straps directly to the field supplied rigging straps

or clevis clip, Do not attach the safety straps to the li_}ing brackets

6, Ese the top of the unit as a spreader bar to prevent the rigging

straps [?om damaging the unit If the wood top is not available, use a spreader bar of sufficient tength to not damage the unit,

Roof Curb for Small Cabinet

Note A: When unit mounting screw is used,

retah3er bracket must also be used.

Roof Curb for Large Cabinet

Note A: When unit mounting screw is used,

retainer bracket must also be used.

Long

SL pport

iBXC}

UNiT S_ZE

50GS018-042 50GX024-036

50GS048-060 50GX042-060

NOTES:

1. Dimensions in ( ) are Jnmillimeters

2. Roof curb Jsmade of 16-gage steel.

3. Table Ebts only the dimensions per part number that have changed

4. Insulated panels: 1-in. thick fiberglass 1 lb. density

-->

Lifting point should be directly over the center of gravity for the unit.

Step 6--Connect Condensate Drain

NOTE: When installing condensate &ain connection be sure to comply with local codes and restrictions.

Models 50GS and 50GX dispose of condensate water through a 3/4 in NPT fitting which exits through the base on the evaporator coil access side. See Fig. 2 & 3 for location.

ODS CATALOG NUMBER

CPRFCURB006A00 CPRFCURB007A00 CPRFCURB008A00

CPRFCURB009A00

Fig. 4A-- Roof Curb Dimensions

Suppolt

R/A

-'--'--Gasket around_

insulated deck pan

IN. {MM)

8 (203)

14 (356)

8 (203)

14 (356)

Condensate water can be drained directly onto the roof inrooftop installations (where permitted) or onto a gravel apron in ground- level installations. Install a _ldosupplied condensate trap at end of condensate connection to ensure proper drainage Make sure that the outlet of the trap is at least 1 in lower than the drainpan condensate connection to prevent the pan fi'om overflowing (See Fig 7) When using a gravel apron, make sure it slopes away from

the unit. Connect a drain robe using a minimum of 3/4 -in. PV( or 3/4 -in.

copper pipe (all fieldosupplied) at the outlet end of the 2-in trap. Do not undersize the robe Pitch the &ain robe downward at a

Gasket around

IN.(MM)

11(279)

11(279) 1G3/16 (411) 1G3/16 (411)

duct

outer edge \

IN.(MM)

1G1/2 (419) 1Gl/2 (419)

17-3/8 (441) 17-3/8 (441)

S/A

C00076

IN.(MM)

2G3/4 (730)

28-3/4 (730) 40-1/4 (1022) 40-1/4 (1022)

4 x 3

C00071

CORNER #

1 58 60 59 62 76 69 84 76 84 85 71 78 85 2 47 50 48 50 50 45 54 49 60 60 55 56 66 3 55 56 56 58 71 88 106 57 61 64 85 80 108

4 94 94 95 98 97 122 145 88 86 90 110 112 140

TOTAL WEIGHT 254 260 258 268 294 324 389 270 291 299 321 326 399

018 024 030 036 042 048 060 024 030 036 042 048 060

Fig. 4B--50GS and 50GX Unit Corner Weights

50GS 50GX

MAXIMUM ALLOWABLE

DIFFERENCE (in.)

A-B B-C A-C

1/4 1/4 1/4

C99065

Fig. 8A--Unit Leveling Tolerances

EVAP COIL COND. COIL

Fig. 5B_lab Mounting Detail

slope of at least l-in. %r e_e W 10 ft. of horizontal run Be sure to check the drain tube for leaks Prime trap at the beginning of the cooling season start°up

C99096

Step 7--install Duct Connections

)'be unit has duct flanges on the supply- and return=air openings on the side and bottom of" the unit, For downshot applications the ductwork can be connected to the roof cm'b See Fig. 2 & 3 for

connection sizes and locations,

DETAIL A

SCALE 0250

TIGHTEN STRAPPING SECURELY WITH TENSION BUCKLE

RIGGING CLEVIS AT 4 RIGGING BRACKETS

SEE DETAIL A

PLACE RIGGING BRACKET ASSEMBLY IN 4 RIGGING HOLES AND INSTALL TIE DOWN STRAP

AROUND PERIMETER OF UNIT AND THROUGH

SPACE IN BRACKET ASSEMBLY

MAXBMUMWE_GHT A I B

sRzE ib U U ram. H U

in.

UNiT 80GS

018 276 125.2 508.0 13 330.2 024 282 127.9 482.6 13 330.2 030 280 127.0 482.6 14 355.6 036 290 131.5 508.0 14 355.6 042 316 143.3 482.6 14 355.6

048 346 156.9 508 17 431.8 060 411 186.4 482.6 16 406.4

20 19 19 20 19

20 19

UNiT 80GX

024 292 132.5 469.9 14.50 368.3 030 313 142.5 495.3 15.50 393.7

036 321 145.6 495.3 15.25 387.4 042 343 155.6 520.7 16.75 425.5 048 348 157.9 495.3 17.62 447.6

060 421 191.0 520.7 16.25 412.8

18.5

19.5

20.5

19.5

20.5

Fig. g--Suggested RiggBng

IMPORTANT: Use flexible connectors between ductwork and

unit to prevent transmission of vibration. Use suitable gaskets to

ensure weathertight and airtight seal. When electric heat is installed, use fire proof canvas (or similar heat resistant material)

connector between ductwork and unit discharge connection. If flexible duct is used, insert a sheet metal sleeve inside duct. Heat

resistant duct connector (or sheet metal sleeve) must extend 24-in.

from the unit discharge connection flange into the duct\york. CONFIGURING UNITS FOR DOVv%'FLOW (VERTI(AL) DIS-

CHARGE

Be%re per%rming serxice or maintenance operations on the system, turn off main power to unit and install lockout tag or

electrical shock could result.

l. Open all electrical disconnects and install lockout tag befbre

starting any service work_

2. Remove return duct cover located on dt_ct panel by breaking tbur (4) connecting tabs with screwdriver and a hammer. (Fig.

8&9)

3 To remove supply duct cover, break Dont and right side

connecting tabs with a screw&iver and a hammer. Push louver down to break rear and tef_ side tabs (Fig 8 & 9)

4 [f unit ductwork is to be attached to vertical opening flanges

on the unit composite base (iackstand applications only), do so at this time (ollect ALL screws that were removed. Do not

leave screws on rooftop as permanent damage to the roof may

Occur,

5 [t is recommended that the unit base insulation around d-_e

perimeter of the vertical return-air opening be secured to d'_e unit base with aluminum tape. Applicable local codes may require alma_inum tape to prevent exposed fiberglass.

6 Cover both horizontal duct openings with the duct covers from

the accessory duct cover kit. Ensure opening is air-and watertight.

7. After completing unit conversion, perfbma all safety checks

and power up unit.

NOTE: The design and installation of the duct system must be in accordance with the standards of the NFPA for installation of

nonresidence-Wpe air conditioning and ventilating systems, NFPA

C99066

Table 1--PhysicN Data--UnR 50GS

UNIT S_ZE 018 024 030 03$ 042 048 060

NOMINAL CAPACITY (ton) 1-1/2 2 2-1/2 3 3-1/2 4 5

OPERATBNG WEIGHT (lb.} 254 260 258 268 294 324 389

COMPRESSOR Reciprocating Scrotl Reciprocating

REFRIGERANT (R=22)

Quantity (tb.) 2.6 3.5 3.65 4.4 6.4 5.1 7.4

REFRBGERANT METERING DEVICE Accurater

Orifice ID (in.} .034 .034 .034 .032 .034 .032 .030

CONDENSER COIL

Rows...Finsiin.

Face Area {sq. ft.)

CONDENSER FAN

Nomina_ Cfm

Diameter

Motor Np (Rpm) 1/8 (825) 1/8 (825) 1/8 (825) 1/4 (1100) 1/4 (I100) 1/4 (1100) 1/4 (1100)

EVAPORATOR COiL

Rows...Fins/in.

Face Area (sq. ft.}

EVAPORATOR BLOWER

Nomina_ Airflow {Cfm) 10x10 10x10 10x10 1lx10 1Ix10 11x10 1lx10

Size (in.} 1/4 (825) 1/4 (1075) 1/4 (1075) 1/2 (1075) 3/4 (1075) 3/4 (1075) 1.0 (1100)

Motor HP {RPM)

RETURN-AIR FILTERS (in.)* 20x20 20x20 20x20 20x24 20x24 24x30 24x30

Throwaway

Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration institute) rated cooling airflow or the heating airflow velocity of 300

ft/min for throwaway type or 450 ft./min for high-capacity type Air filter pressure drop for non-standard filters must not exceed 008 in. wg.

1...17 1...17 1...17 1._17 1...17 1._17 2...17

6.1 9.1 9.1 10.9 9.1 12.3 12.3

2000 2400 2400 3000 3000 3600 3600

22 22 22 18 22 22 22

2...15 2...15 2...15 3...15 4...15 3...15 4...15

3.1 3.1 3.7 3.06 3.06 4.7 4.7

600 800 1000 1200 1400 1600 2000

Table 2--Physicam Data--Unit 80GX

UNIT SBZE 024 030 03¢ 042 048 060

NOMINAL CAPACBTY (ton) 2 2-1/2 3 3-1/2 4 5

OPERATING WEIGHT (_b.) 270 291 299 321 326 399

COMPRESSOR ScroJt

REFRmGERANT (R-22)

Quantity {,b.) 37 [ 44 1 52 j 76 1 83 l 81

REFRIGERANT METERING DEVICE Accurater

Orifice ID (in.) .034 .030 .032 .034 .034 .032

CONDENSER COBL

Rows...Finstin.

Face Area (sq. ft.)

CONDENSER FAN

Nominal Cfm

Diameter (in.) 1/8 (825) 1/8 (825) 1/8 (825) 1/4 (I100) 1/4 (1100) 1/4 (1100)

Notor Np (Rpm)

EVAPORATOR COIL

Rows...Finsiin.

Face Area (sq. ft.)

EVAPORATOR BLOWER

Nominal Airflow (Cfm} 10x10 10x10 1lx10 11x10 11x10 1Ix10

Size (in.)

Motor Np (RPM) 1/4 (1075) 1/4 (1075) 1/2 (1075) 3/4 (1075) 3/4 (1075) 1.0 (1040)

RETURN-ABR FBLTERS {in.)* 20x20 20x20 20x24 20x30 24x30 24x30

*Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration institute) rated cooling airflow or the heating airflow velocity of 300

ft/min for throwaway type or 450 ft./min for high-capacity type Air filter pressure drop for non-standard filters must not exceed 008 in. wg.

Throwaway

1._17 1._17 2...17 2...17 2._17 2._17

10.8 12.7 9.1 9.1 12.3 16.4

2350 2350 2350 3300 3300 3300

22 22 22 22 22 22

3._15 3...15 3...15 3...15 4._15 4...15

3.1 3.1 3.7 4.7 4.7 4.7

800 1000 1200 1400 1600 1750

90A or residence-typ< NFPA 90B: and/or local codes and ordinances,

Adhere to the following criteria when selecting, sizing, and

installing the duct system:

8. _nits are shipped for side shot installation

9. Select and size ductwork, supply=air registers, and return=air grilles according to American Society of Heating, Refrigera=

tion and Air Conditioning Engineers (ASHRAE) recommen=

dations.

10. Use flexible transition between rigid ductwork and unit to prevent transmission of vibration. The tIansition may be

screwed or bolted to duct flanges. Use suitable gaskets to ensure weathertight and airtight seal.

11. Al! units must have field-supplied filters or accessory filter rack installed in the return=air side of the unit. Recommended

sizes ibr filters are shown in Tables 1 and 2

12. Size all ductwork ibr maximum required airflow (either heating or cooling) fPr unit being installed. Avoid abrupt &tct size increases or decreases or peribm_ance may be affected.

13. Adequately insulate and weatherproof all ductwork located outdoors. Insulate ducts passing through unconditioned space, and use vapor bah'let in accordance with latest issue of Sheet

1" (25mm) MIN.

Fig. 7--Condensate Trap

Table 3--Minimum Airflow for Safe Electric Heater

Operation (Cfm}

018 024 700 800

Metal and Air Conditioning Contractors National Association

(SMACNA) and Air (onditioning Contractors of America (A(CA) minimum installation standards fbr heating and air conditioning systems. Secure all ducts to building structure.

14. Flash, weatherproof, and vibration=isolate all openings in building structure in accordance with local codes and good building practices.

030 036 042

1000 1200 1400

TRAP OUTLET

2" (50ram) MIN.

C99013

S_ZE

048 060

1600 2000

/ i

/ /

SUPPLY RETURN DUCT DUCT

OPENING OPENING

Fig. 8--Supply and Return Duct Opening

Step 8--Install Electrical Connection

The unit cabinet must have an uninterrupted, unbroken electrical ground to minimize the possibility of personal injury if an electrical limit should occur. This ground may consist of an electrica! wire connected to the unit ground lug in the control conapartment, or conduit approved for electrical ground when installed in accordance with NEC (National Electrical Code) ANSI NFPA (latest edition) and local dec=

trical codes. In Canada, R_llow (anadian Electrical Code CSA (Canadian Standards Association) (22.1 and local

electrical codes. Failure to adhere to this warning could result in personal injury or death.

C99011

DUCT COVERS REMOVED

C99012

Fig. 9--Vertical Duct Cover Removed

Failure to %llow these precautions could result in damage to the unit being installed:

l. Make all electrical connections in accordance with NEC

ANSFNFPA (latest edition) and local electrical codes governing such wiring. In Canada, all electrical connec=

tions must be in accordance with CSA standard (722.1 Canadian Electrical (;ode Part 1 and applicable tocal

codes. Refer to unit wiring diagram

2. "Use only copj_er conductor for connections between field=supplied electrical disconnect switch and unit. DO

NOT USE ALUMINUM WIRE.

3. Be sure that high=voltage power to unit is within operating

voltage range indicated on unit rating plate.

4. Do not damage internal components when drilling through any panel to mount electrical hardware, conduit, etc On

3=phase units, ensure phases are balanced within 2 percent Consult local power company for correction of improper

voltage and/or phase imbalance.

HIGH=VOLTAGE CONNE( TIONS

The unit must have a separate electrical smwice with a field= supplied, waterproof, disconnect switch mounted at, or within

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