Haier GE NAMP1 User manual

507787G02 / 31-5000675-1 Issue 2336 Page 1 of 22
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Table of Contents
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6KLSSLQJDQG3DFNLQJ/LVW ...........................................3
General........................................................................3
Requirements..............................................................3
8VHRI$LU+DQGOHU'XULQJ&RQVWUXFWLRQ.......................4
,QVWDOODWLRQ&OHDUDQFHV ................................................4
,QVWDOODWLRQ ...................................................................4
Condensate Drain........................................................7
'XFW6\VWHPDQG)LOWHUV ..............................................9
%UD]LQJ5HIULJHUDQW/LQHV............................................9
Sealing the Unit.........................................................11
(OHFWULFDO&RQQHFWLRQV...............................................11
$LU)ORZ±&RROLQJ%ORZHU6SHHG..............................16
&KHFNRXW3URFHGXUHV................................................18
Operation...................................................................18
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3URIHVVLRQDO0DLQWHQDQFH .........................................20
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WARNING
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IMPORTANT
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CAUTION
3G02
'"$$%$'
GE Appliances
A Haier Company
$SSOLDQFH3DUN
/RXLVYLOOH.<
,167$//$7,21,16758&7,216
NAMP1 2QH3LHFH36&$LU+DQGOHU

507787G02 / 31-5000675-1Issue 2336Page 2 of 22
A
B
FRONT VIEW SIDE VIEW
LINE VOLTAGE
INLETS
(Top and Right Side)
LOW VOLTAGE
INLETS
(Either Side)
SUCTION
LINE
LIQUID
LINE
FILTER
ACCESS
3/4
(19)
AIR FLOW
CIRCUIT
BREAKER
COVER
D
1-1/8
(29)
1/2
(13)
C
LINE VOLTAGE
INLETS
(Top and Left Side)
LOW VOLTAGE
INLETS
(Top and Right Side)
1 (25)
SUPPLY AIR
OPENING
TOP VIEW
OPENING OPENING
1 (25) 1 (25)
1-1/8
(29)
1-1/8
(29)
20-3/8
(518)
22
(559)
14-1/2
(368)
DETAIL OF PIPING PLATE
LIQUID
LINE CONDENSATE
DRAINS (2)
(Horizontal)
1-3/4
(44)
3/4 (19)
2-3/4
(70)
3-1/2
(89)
PIPING
PLATE
4-3/4
(121)
4-3/8
(111)
2-3/8
(60)
CONDENSATE
DRAINS (2)
(Upflow and
Downflow)
SUCTION
LINE
CONDENSATE DRAIN
PIPING PLATE (3)
(2-1/4 x 3-3/4)
8QLW'LPHQVLRQV±8SÀRZ±,QFKHVPP
Dimensions 018 024 030 036 / 042 048 060
in. mm in. mm in. mm in. mm in. mm in. mm
A    47 1194  1362  1397  
B 470  470  470      
C 419  419  419      
D 413  413  413  489  489  489
NOTE: 8QLWLVVKLSSHGFRQ¿JXUHGIRUKRUL]RQWDOULJKWKDQGDLUGLVFKDUJH8QLWPD\EHFRQYHUWHGWRKRUL]RQWDOOHIWKDQGDLU
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507787G02 / 31-5000675-1 Issue 2336 Page 3 of 22
Shipping and Packing List
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General
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designed for indoor installation only. As shipped, the unit
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Requirements
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pertaining to this type of equipment should be determined
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starting the installation.
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All models are designed for indoor installation only. The
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the installation.
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507787G02 / 31-5000675-1Issue 2336Page 4 of 22
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HOHFWULFDOFRQWUROV
Use of Air Handler During Construction
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DO NOT USE THE UNIT FOR CONSTRUCTION HEAT
UNLESS ALL OF THE FOLLOWING CRITERIA ARE
MET:
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• $LU¿OWHUPXVWEHLQVWDOOHGLQWKHV\VWHPDQGPXVWEH
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FRPSOHWLRQ
• 7KHDLUKDQGOHUHYDSRUDWRUFRLOVXSSO\IDQDVVHPEO\
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• $OO DLU KDQGOHU RSHUDWLQJ FRQGLWLRQV PXVW EH YHUL¿HG
DFFRUGLQJWRWKHVHLQVWDOODWLRQLQVWUXFWLRQV
(48,30(17 0$< (;3(5,(1&( 35(0$785(
&20321(17)$,/85($6$5(68/72))$,/85(72
)2//2:7+($%29(,167$//$7,21,16758&7,216
)$,/85( 72 )2//2: 7+( $%29( ,167$//$7,21
,16758&7,216 92,'6 7+( 0$18)$&785(5¶6
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$// /,$%,/,7< ,1 &211(&7,21 :,7+ ,167$//(5¶6
)$,/85( 72 )2//2: 7+( $%29( ,167$//$7,21
,16758&7,216
127:,7+67$1',1*7+()25(*2,1*,167$//(5,6
5(63216,%/()25&21),50,1*7+$77+(86(2)
&216758&7,21+($725&22/,1*,6&216,67(17
:,7+7+(32/,&,(6$1'&2'(62)$//5(*8/$7,1*
(17,7,(6$//68&+32/,&,(6$1'&2'(60867%(
ADHERED TO.
Installation Clearances
Non-Ducted Return Closet Installation
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single-story buildings.
When a 1$03XQLWLVLQVWDOOHGLQDFORVHWZLWKDORXYHUHG
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• VTXDUHLQFKHVIRUWKUXPRGHOV
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determine if the open area meets the minimum open area
listed above.
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Installation
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DQG FRQWUROV LQ DQ LQVXODWHG JDOYDQL]HG VWHHO IDFWRU\
¿QLVKHG HQFORVXUH .QRFNRXWV DUH SURYLGHG IRU HOHFWULFDO
ZLULQJHQWUDQFH

507787G02 / 31-5000675-1 Issue 2336 3DJHRI
)RUHDVHLQLQVWDOODWLRQLWLVEHVWWRPDNHDQ\QHFHVVDU\
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SODFH
Refrigerant Metering Device
1$03XQLWVDUHHTXLSSHGZLWKDIDFWRU\LQVWDOOHGFKHFN
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8SÀRZ$SSOLFDWLRQ
1. The air handler must be supported on the bottom only
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6HFXUHO\DWWDFKWKHDLUKDQGOHUWRWKHÀRRURUVXSSRUW
frame.
HORIZONTAL DRAIN PAN
(MUST BE REMOVED)
UP-FLOW /
DOWN-FLOW
DRAIN PAN
DRIP
SHIELD
Figure 1. 8SÀRZ&RQ¿JXUDWLRQ
2. ,ILQVWDOOLQJDXQLWLQDQXSÀRZDSSOLFDWLRQUHPRYHWKH
horizontal drain pan.
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XSÀRZDLUGLVFKDUJHLQVWDOODWLRQVLWVUHPRYDOSURYLGHV
WKHEHVWH௻FLHQF\DQGDLUÀRZ
3. 3ODFHWKH XQLWLQWKH GHVLUHGORFDWLRQDQG VORSHXQLW
&RQQHFW UHWXUQ DQG VXSSO\ DLU SOHQXPV DV UHTXLUHG
XVLQJVKHHWPHWDOVFUHZV
4. ,QVWDOOXQLWVWKDWKDYHQRUHWXUQDLUSOHQXPRQDVWDQG
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air return.
Horizontal Applications
:KHQUHPRYLQJWKHFRLOWKHUHLVDSRVVLELOLW\RIGDQJHU
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ZKHQUHPRYLQJWKHFRLODVVHPEO\IURPDXQLWLQVWDOOHG
LQULJKWRUOHIWKDQGDSSOLFDWLRQV7KHFRLOPD\WLSLQWR
WKHGUDLQSDQRQFHLWLVFOHDURIWKHFDELQHW6XSSRUWWKH
FRLOZKHQUHPRYLQJLW
IMPORTANT
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D VHFRQGDU\ GUDLQ SDQ LV UHFRPPHQGHG 5HIHU WR ORFDO
FRGHV
NOTE: 7KLVXQLWPD\EHLQVWDOOHGLQOHIWKDQGRUULJKWKDQG
DLU GLVFKDUJH KRUL]RQWDO DSSOLFDWLRQV $GHTXDWH VXSSRUW
PXVWEHSURYLGHGWRHQVXUHFDELQHWLQWHJULW\(QVXUHWKDW
WKHUH LV DGHTXDWH URRP WR UHPRYH VHUYLFH DQG DFFHVV
SDQHOVLILQVWDOOLQJLQWKHKRUL]RQWDOSRVLWLRQ
Right-Hand Discharge
1. 'HWHUPLQH ZKLFK SOXJV DUH UHTXLUHG IRU GUDLQ OLQH
FRQQHFWLRQV
2. :LWKDFFHVVGRRUUHPRYHGUHPRYHGUDLQOLQHSOXJVWR
install drain lines.
3. 6HWXQLWVRWKDWLWLVVORSHGWRZDUGWKHXSÀRZGUDLQSDQ
HQGRIWKHXQLWDQGOHYHOIURPIURQWWREDFNRIXQLWVHH
)LJXUH
4. 7KHKRUL]RQWDOFRQ¿JXUDWLRQLVVKRZQLQ)LJXUH
Drains
AIR FLOW
PLUGS
RIGHT‐HAND DRAINS
Drip
Shield
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PXVWEHVXSSRUWHG,I\RXXVHDFKDLQRUVWUDSXVHD
SLHFHRIDQJOHLURQRUVKHHWPHWDODWWDFKHGWRWKHXQLW
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air plenums as required.
FRONT WEIVDNEWEIV
ANGLE IRON OR SHEET
METAL
E
ANCE 4 IN. (102 MM)
MAXIMUM 1/2"
LONG SCREW
AIR FLOW
Figure 3. Suspending Horizontal Unit

507787G02 / 31-5000675-1Issue 2336Page 6 of 22
Left-Hand Air Discharge
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PRGL¿FDWLRQVDUHUHTXLUHG
FRONT EDGE OF HORIZONTAL
DRAIN PAN
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FRUUXJDWHGSDGGLQJ
2. 3XOOWKHFRLODVVHPEO\IURPXQLW3XOORႇWKHKRUL]RQWDO
drain pan.
3. 5HPRYH WKH GUDLQ SOXJV IURP EDFN GUDLQ KROHV RQ
horizontal drain pan and reinstall them on front holes.
$IWHUUHPRYDORIGUDLQSDQSOXJVFKHFNGUDLQKROHV
to verify that drain opening is fully open and free of any
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fallen into the drain pan during installation that may plug
up the drain opening.
IMPORTANT
4. 5RWDWHGUDLQSDQIURQWWREDFNDQGLQVWDOOLWRQWKH
RSSRVLWHVLGHRIWKHFRLO
 5HPRYH VFUHZV IURP WRS FDS 5HPRYH GULS VKLHOG
VFUHZORFDWHGLQWKHFHQWHURIWKHEDFNFRLOHQGVHDO
DVLOOXVWUDWHGLQ'HWDLO$LQ)LJXUH
6. 5RWDWHGULSVKLHOGIURQWWREDFN
7. 5HPRYH SODVWLF SOXJ IURP OHIW KROH RQ FRLO IURQW HQG
VHDO DQG UHLQVWDOO SOXJ LQ EDFN KROH 5HLQVWDOO GULS
VKLHOGVFUHZLQIURQWFRLOHQGVHDO'ULSVKLHOGVKRXOG
GUDLQGRZQZDUGLQWRKRUL]RQWDOGUDLQSDQLQVLGHFRLO
8. 5RWDWH WRS FDS  IURQWWREDFN DQG DOLJQ ZLWK
XQXVHGVFUHZKROHV+ROHVPXVWDOLJQZLWKIURQWDQG
EDFNFRLOHQGSODWHVVHH'HWDLO%LQ)LJXUH7KHWRS
FDSKDVDEHQGRQRQHVLGHDQGDEHQGRQWKH
other. The 90º bend must be on the same side as
the horizontal drain pan as illustrated in Detail A in
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NOTE: %H YHU\ FDUHIXO ZKHQ UHLQVWDOOLQJ WKH VFUHZV
LQWR WKH FRLO HQG SODWH HQJDJLQJ KROHV 0LVDOLJQHG
VFUHZVPD\GDPDJHWKHFRLO
9. )URP WKH XSÀRZ SRVLWLRQ ÀLS FDELQHW  WR WKH OHIW
DQGVHWLQWRSODFH5HSODFHEORZHUDVVHPEO\6HFXUH
FRLOLQSODFHE\EHQGLQJGRZQWKHWDERQWKHFDELQHW
support rail as illustrated.
NOTE: 6HDODURXQG WKH H[LWLQJGUDLQSLSHOLTXLG DQG
VXFWLRQOLQHVWRSUHYHQWLQ¿OWUDWLRQRIKXPLGDLU
10. )OLSDFFHVVGRRUDQGUHSODFHLWRQWKHXQLW
11. 6HWXQLWVRWKDWLWLVVORSHGފWRZDUGWKHGUDLQSDQ
HQGRIWKHXQLW&RQQHFWUHWXUQDQGVXSSO\DLUSOHQXPV
DVUHTXLUHGXVLQJVKHHWPHWDOVFUHZV
12. ,IVXVSHQGLQJWKHXQLWLWPXVWEHVXSSRUWHGDORQJWKH
HQWLUH OHQJWK RI WKH FDELQHW ,I XVLQJ FKDLQ RU VWUDS
XVHD SLHFHRIDQJOH LURQRUVKHHWPHWDO DWWDFKHGWR
WKHXQLWHLWKHUDERYHRUEHORZVRWKDWWKHIXOOOHQJWK
RIWKH FDELQHW LV VXSSRUWHG 8VH VHFXULQJVFUHZVQR
ORQJHU WKDQ ފ WR DYRLG GDPDJH WR FRLO RU ¿OWHU DV
LOOXVWUDWHGLQ)LJXUH &RQQHFWUHWXUQDQG VXSSO\DLU
SOHQXPVDVUHTXLUHGXVLQJVKHHWPHWDOVFUHZV
Figure 5. )LHOG0RGL¿FDWLRQIRU/HIW+DQG'LVFKDUJH
90º
BEND
CABINET
SUPPORT
TOP CAP
SCREWS
DRAIN PAN
REINSTALLED
HERE
DRAIN PAN
SHIPPING
LOCATION
TOP CAP ROTATED TO
CORRECT POSITION
———— DRAIN PLUGS ————
REINSTALLED HERE REMOVED FROM HERE
BACK COIL
END SEAL
TOP CAP
90º
BEND
INSTALL DRAIN PAN
BETWEEN TAB AND
EXTERIOR INNER WALL.
DETAIL A
DETAIL B
DETAIL C
FRONT VIEW
3/16” PLASTIC
PLUG (REAR COIL
END SEAL)
ALIGN HOLES WITH
HOLES IN COIL END
PLATE. STARTING WITH
THE ROUND HOLES ON
THIS END.
DRIP SHIELD
SCREW (FRONT
COIL END SEAL)
DRIP
SHIELD
COIL SHOWN IN UPFLOW POSITION FOR EASY
CONVERSION (LEFT-HAND AIR DISCHARGE)

507787G02 / 31-5000675-1 Issue 2336 Page 7 of 22
Sloping The Unit
0DNHVXUHWKHXQLW LV VORSHG VLPLODU WR WKH VORSH VKRZQ
LQ )LJXUH  VR WKDW WKH GUDLQ SDQ ZLOO HPSW\ FRPSOHWHO\
ZLWKRXWZDWHUVWDQGLQJLQWKHSDQ
THIS CORNER SHOULD BE 5/8" (+/- 1/8") HIGHER
THAN DRAIN CORNER
DRAIN CORNER
LEVEL PLANE
Figure 6. Sloping the Unit for Proper Drainage
Install Condensate Drain
7KHDLUKDQGOHULVSURYLGHGZLWK´137FRQGHQVDWHGUDLQ
FRQQHFWLRQV
2QVRPHSDQVWKHSULPDU\DQGVHFRQGDU\GUDLQKROHV
KDYHNQRFNRXWV
&RQ¿UPSULPDU\DQGVHFRQGDU\GUDLQVDUHRSHQ
IMPORTANT
1. 1$03 XQLWV DUH HTXLSSHG ZLWK D GUDLQ SDQ ZKLFK
LQFOXGHVJUHHQPDLQGUDLQDQGUHGVHFRQGDU\GUDLQ
SOXJV 8QVFUHZ WKH SOXJV WR UHPRYH WKHP EHIRUH
LQVHUWLQJFRQGHQVDWHGUDLQ¿WWLQJV
DRAIN PAN RED SECONDARY
DRAIN PLUG
UNSCREW PLUGS
AND CONNECT
PROPERLY SIZED
FIELD-PROVIDED
FITTINGS AND
DRAIN LINES.
GREEN MAIN
DRAIN PLUG
Figure 7. Drain Line Connections
2. ,QVWDOOSURSHUO\VL]HG¿HOGSURYLGHGFRQQHFWLRQ¿WWLQJV
DQGFRQQHFWSULPDU\GUDLQOLQHWRWKHPDLQGUDLQSDQ
FRQQHFWLRQ
NOTE: :KHQ LQVWDOOLQJ GUDLQ OLQH FRQQHFWLRQ ¿WWLQJV
WR WKH GUDLQ SDQ KDQG WLJKWHQ WKH ¿WWLQJ DQG XVH D
WKUHDG VHDODQW 2YHUWLJKWHQLQJ WKH ¿WWLQJV FDQ VSOLW
FRQQHFWLRQVRQWKHGUDLQSDQ
3. ,IWKHVHFRQGDU\GUDLQOLQHLVWREHXVHGUHPRYHWKH
SOXJRUWKHNQRFNRXWDQGURXWHWKHGUDLQOLQHVRWKDW
13. 6HWXQLWVRWKDWLWLVVORSHGފWRZDUGWKHGUDLQSDQ
HQGRIWKHXQLW&RQQHFWUHWXUQDQGVXSSO\DLUSOHQXPV
DVUHTXLUHGXVLQJVKHHWPHWDOVFUHZV
14. ,IVXVSHQGLQJWKHXQLWLWPXVWEHVXSSRUWHGDORQJWKH
HQWLUH OHQJWK RI WKH FDELQHW ,I XVLQJ FKDLQ RU VWUDS
XVHD SLHFHRIDQJOH LURQRUVKHHWPHWDO DWWDFKHGWR
WKHXQLWHLWKHUDERYHRUEHORZVRWKDWWKHIXOOOHQJWK
RIWKH FDELQHW LV VXSSRUWHG 8VH VHFXULQJVFUHZVQR
ORQJHU WKDQ ފ WR DYRLG GDPDJH WR FRLO RU ¿OWHU DV
LOOXVWUDWHGLQ)LJXUH &RQQHFWUHWXUQDQG VXSSO\DLU
SOHQXPVDVUHTXLUHGXVLQJVKHHWPHWDOVFUHZV
'RZQÀRZ$SSOLFDWLRQ
,I GRZQÀRZ DSSOLFDWLRQ LV UHTXLUHG VHSDUDWHO\ RUGHU D
GRZQÀRZ FRQYHUVLRQ NLW DQG LQVWDOO SHU NLW LQVWUXFWLRQV
6HH7DEOH IRUNLW LQIRUPDWLRQ$OVRXVH PHWDORUFODVV ,
supply and return air plenums.
Model Kit Number
018, 024, 030 <
036, 042, 048, 060 <
Table 1. 'RZQÀRZ&RQYHUVLRQ.LWV
,IHOHFWULFKHDWVHFWLRQZLWKFLUFXLWEUHDNHUV(&%$LV
installed in a 1$03XQLWLQDGRZQÀRZDSSOLFDWLRQWKH
FLUFXLWEUHDNHUVPXVWEHURWDWHGWRWKH83SRVLWLRQ
6HH(&%$LQVWDOODWLRQLQVWUXFWLRQVIRUPRUHGHWDLOV
IMPORTANT
Condensate Drain
2QXQLWVRIWKLVW\SHZKHUHWKHEORZHU³GUDZV´UDWKHU
WKDQ³EORZV´DLUWKURXJKWKHFRLOWUDSVPXVWEHLQVWDOOHG
LQ WKH FRQGHQVDWH GUDLQ OLQHV SULPDU\ DQG DX[LOLDU\
LI XVHG 7UDSV SUHYHQW WKH EORZHU IURP GUDZLQJ DLU
through the drain lines into the air supply.
IMPORTANT
$ ¿HOGIDEULFDWHG VHFRQGDU\ GUDLQ SDQ ZLWK D GUDLQ
pipe to the outside of the building, is required in all
LQVWDOODWLRQVRYHUD¿QLVKHGOLYLQJVSDFHRULQDQ\DUHD
WKDWPD\EHGDPDJHGE\RYHUÀRZIURPWKHPDLQGUDLQ
SDQ ,Q VRPH ORFDOLWLHV ORFDO FRGHV PD\ UHTXLUH D
VHFRQGDU\GUDLQSDQIRUDQ\KRUL]RQWDOLQVWDOODWLRQ
IMPORTANT

507787G02 / 31-5000675-1Issue 2336Page 8 of 22
ZDWHU GUDLQLQJ IURP WKH RXWOHW ZLOO EH HDVLO\ QRWLFHG
E\WKHKRPHRZQHU5HIHUWRORFDOFRGHVIRUGUDLQWUDS
UHTXLUHPHQWVRQWKHVHFRQGDU\GUDLQOLQH
4. &KHFNDJDLQWRHQVXUHGUDLQSRUWVDQGGUDLQSDQDUH
free of all debris.
 3OXJ DQG FKHFN DQ\ XQXVHG GUDLQ SDQ RSHQLQJV IRU
WLJKWQHVV7RUTXHSOXJVWRLQOEWRSUHYHQWZDWHU
OHDNVRUVHHSDJHIURPWKHGUDLQSDQ
6. ,QVWDOO D ´ WUDS LQ WKH PDLQ SULPDU\ GUDLQ OLQHV DV
FORVHWRWKHXQLWDVSUDFWLFDOVHH)LJXUH0DNHVXUH
WKHWRSRIWKHWUDSLVEHORZWKHFRQQHFWLRQWRWKHGUDLQ
SDQWRDOORZFRPSOHWHGUDLQDJHRIWKHSDQ
NOTE: +RUL]RQWDO UXQV PXVW KDYH DQ DQWLVLSKRQ DLU
YHQWVWDQGSLSHLQVWDOOHGDKHDGRIWKHKRUL]RQWDOUXQ
6HH )LJXUH $Q H[WUHPHO\ ORQJ KRUL]RQWDO UXQ PD\
UHTXLUHDQRYHUVL]HGGUDLQOLQHWRHOLPLQDWHDLUWUDSV
NOTE: 'R QRW RSHUDWH DLU KDQGOHU ZLWKRXW D WUDS LQ
WKHPDLQSULPDU\GUDLQ7KHFRQGHQVDWHGUDLQLVRQ
WKHQHJDWLYHSUHVVXUHVLGHRIWKHEORZHUWKHUHIRUHDLU
EHLQJSXOOHGWKURXJKWKHFRQGHQVDWHOLQHZLOOQRWDOORZ
SRVLWLYHGUDLQDJHZLWKRXWDSURSHUWUDS
7. Route the drain line to the outside or to an appropriate
GUDLQ'UDLQOLQHVPXVWEHLQVWDOOHGVRWKH\GRQRWEORFN
VHUYLFH DFFHVV WR WKH IURQW RI WKH DLU KDQGOHU$ ´
FOHDUDQFHLVUHTXLUHGIRU¿OWHUFRLORUEORZHUUHPRYDO
DQGVHUYLFHDFFHVV
NOTE: &KHFNORFDOFRGHVEHIRUHFRQQHFWLQJWKHGUDLQOLQH
WR DQ H[LVWLQJ GUDLQDJH V\VWHP ,QVXODWH WKH GUDLQ OLQHV
ZKHUHVZHDWLQJFRXOGFDXVHZDWHUGDPDJH
Test Condensate Drain
7HVWWKHGUDLQSDQDQGGUDLQOLQHDIWHULQVWDOODWLRQ
1. 3RXU VHYHUDO TXDUWV RI ZDWHU LQWR GUDLQ SDQ 8VH
HQRXJKZDWHUWR¿OOERWKWKHGUDLQWUDSDQGWKHOLQH
2. &KHFN WKH LQVWDOOHG GUDLQ SDQ 'UDLQ SDQ PXVW EH
GUDLQLQJ FRPSOHWHO\ 'UDLQ OLQH ¿WWLQJV PXVW QRW EH
OHDNLQJ :DWHU PXVW EH GUDLQLQJ IURP WKH HQG RI WKH
primary drain line.
3. &RUUHFWDQ\OHDNVIRXQG
ABOVE
FINISHED
SPACE?
OVERFLOW DRAIN LINE
ALWAYS RUN AN OVERFLOW DRAIN LINE. IF NOT POSSIBLE TO
ROUTE OVERFLOW DRAIN LINE, INSTALL LOW VOLTAGE
OVERFLOW SWITCH KIT. WIRE KIT TO SHUT DOWN
COMPRESSOR PER INSTRUCTIONS.
NO
YES
PART #
X3169 CLEAN OUT
VENT
PRESS IN
(DO NOT GLUE)
VENT MUST EXTEND
ABOVE HEIGHT OF
COIL DRAIN PAN BY
TWO INCHES (51MM)
1” X 3/4” X 3/4”
REDUCING
TEE WITH
PLUG
1P-TRAP
49P66, J-TRAP #
91P90 OR ANY
PVC SCH 40 P- OR
J-TRAP 3/4”
OVERFLOW
DRAIN
AIR HANDLER DRAIN PAN
WHEN A COIL IS LOCATED ABOVE A FINISHED SPACE, A
3/4” (19.1MM) SECONDARY DRAIN LINE MUST BE:
CONNECTED TO SECONDARY DRAIN PAN
OR
CONNECTED TO THE OVERFLOW DRAIN OUTLET OF
THE AIR HANDLER DRAIN PAN.
TRAPS MUST BE DEEP ENOUGH TO OFFSET MAXIMUM STATIC
DIFFERENCES — GENERALLY, TWO INCHES (51MM).
DRAIN LINE SHOULD
SLOPE A MINIMUM OF
ONE INCH PER 10
FEET (25MM PER 3
METERS)
MAIN
DRAIN
TO APPROVED
DRAIN
FOR NEGATIVE PRESSURE COILS (BLOWER
AFTER COIL) TRAPS ARE REQUIRED ON ALL
DRAIN LINES CONNECTED TO COIL.
COMPACT OVERFLOW SWITCH WITH 3/4” FEMALE SLIP INLET
AND MALE ADAPTER, TWO PART DESIGN FOR USE WHERE
OBSTRUCTIONS PREVENT DIRECT THREADING
SECONDARY
DRAIN PAN
2”
(51MM)
TRAP DEPTH
1P-TRAP 49P66 REQUIRES A LARGER INSTALLATION SPACE THAN THE J-TRAP 91P90.
NOTE — WHEN A AIR HANDLER IS LOCATED ABOVE A FINISHED SPACE THE
SECONDARY DRAIN PAN MUST HAVE A LARGER FOOTPRINT THAN THE AIR HANDLER.
Figure 8. 7\SLFDO0DLQDQG2YHUÀRZ'UDLQ

507787G02 / 31-5000675-1 Issue 2336 Page 9 of 22
Duct System and Filters
Duct System
7KHDLUKDQGOHULVSURYLGHGZLWKÀDQJHVIRUWKHFRQQHFWLRQ
of the supply plenum.
6XSSO\DQGUHWXUQGXFWV\VWHPPXVWEHDGHTXDWHO\VL]HG
WRPHHWWKHV\VWHP¶VDLUUHTXLUHPHQWVDQGVWDWLFSUHVVXUH
FDSDELOLWLHV 7KH GXFW V\VWHP VKRXOG EH LQVXODWHG ZLWK
D PLQLPXP RI ´ WKLFN LQVXODWLRQ ZLWK D YDSRU EDUULHU LQ
FRQGLWLRQHGDUHDVRU´PLQLPXPLQXQFRQGLWLRQHGDUHDV
6XSSO\ SOHQXP VKRXOG EH WKH VDPH VL]H DV WKH ÀDQJHG
RSHQLQJ SURYLGHG DURXQG WKH EORZHU RXWOHW DQG VKRXOG
extend at least 3 ft. from the air handler before turning or
EUDQFKLQJ Rႇ SOHQXP LQWR GXFW UXQV 7KH SOHQXP IRUPV
DQ H[WHQVLRQ RI WKH EORZHU KRXVLQJ DQG PLQLPL]HV DLU
H[SDQVLRQORVVHVIURPWKHEORZHU
Filters
$¿OWHULVSURYLGHG7DEOHOLVWVWKH¿OWHUVL]HIRUHDFKXQLW
Model Filter Size – in.
-018, -024, -030 [[
-036, -042, -048, -060 [[
Table 2. Unit Air Filter Size Chart
,I D KLJK HႈFLHQF\ ¿OWHU LV EHLQJ LQVWDOOHG DV SDUW RI
WKLVV\VWHPWRHQVXUHEHWWHULQGRRUDLUTXDOLW\WKH¿OWHU
PXVW EH SURSHUO\ VL]HG +LJK HႈFLHQF\ ¿OWHUV KDYH D
KLJKHU VWDWLF SUHVVXUH GURS WKDQ VWDQGDUG HႈFLHQF\
JODVVIRDP ¿OWHUV ,I WKH SUHVVXUH GURS LV WRR JUHDW
V\VWHP FDSDFLW\ DQG SHUIRUPDQFH PD\ EH UHGXFHG
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IMPORTANT
Installing Duct System
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Field-Fabricated Return Air Duct Flange for
Horizontal Applications
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BOTTOM OF
CABINET
DUCT
ADAPTER
1−1/2
(38)
”A”
BRAKE DOWN 90 DEGREES
1/4 (6) DIA.
2−HOLES
"A"
1−1/2(38)
3/4
(19)
3/4
(19)
1−1/2
(38)
3/4
(19)
1/2
(13)
3/4
(19)
DUCT
FLANGE
CABINET
DOOR FLANGE
UNIT SIZE
Cabinet and Duct Flange
-018, -024,
-030
-036, -042,
-048, -060
18-3/8"
21-1/2"
Figure 9. Cabinet and Duct Flange
Brazing Refrigerant Lines
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Handle the refrigerant lines gently during the installation
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IMPORTANT

507787G02 / 31-5000675-1Issue 2336Page 10 of 22
A
B
NITROGEN
HIGH
LOW
C
D
E
G
H
PIPING
PLATE
REMOVE ACCESS PANEL
ROUTE SUCTION AND LIQUID LINES FROM FITTINGS ON
INDOOR COIL TO FITTINGS ON OUTDOOR UNIT. RUN
LINES IN DIRECT PATH, AVOIDING UNNECESSARY TURNS
AND BENDS.
NOTE - MAKE SURE SUCTION LINE IS INSULATED OVER
ENTIRE EXPOSED LENGTH AND NEITHER SUCTION NOR
LIQUID LINES ARE IN DIRECT CONTACT WITH FLOORS,
WALLS, DUCT SYSTEM, FLOOR JOISTS, OR OTHER
PIPING.
NOTE - Use silver alloy brazing rods with five or six percent
minimum silver alloy for copper-to-copper brazing; 45 percent
alloy for copper-to-brass and copper-to-steel brazing. Do not use
soft solder.
NOTE - Refer to outdoor unit installation instructions for
refrigerant piping size requirements.
BRAZE CONNECTION. ALLOW PIPE TO COOL
TO ROOM TEMPERATURE BEFORE REMOVING
WET RAG FROM CTXV SENSING BULB AND
PIPING PANEL AREA.
REINSTALL RUBBER GROMMETS INTO THE
REFRIGERANT PIPING PANEL.
NOTE - MAKE SURE EXPANSION VALVE
CAPILLARY TUBE IS NOT TOUCHING METAL
EDGES OR COPPER TUBING.
REMOVE RUBBER PLUG FROM BOTH LIQUID AND
SUCTION LINES
NOTE - NAMP1TA SERIES UNITS USE NITROGEN OR DRY
AIR AS A HOLDING CHARGE. IF THERE IS NO PRESSURE
WHEN THE RUBBER PLUGS ARE REMOVED, CHECK THE
COIL FOR LEAKS BEFORE INSTALLING.
EITHER REMOVE OR PUSH PIPE WRAPPING BACK
THROUGH HOLE IN PIPING PLATE BEFORE LINE SET
CONNECTION AND BRAZING.
CONNECT PIPES
NOTE - REFRIGERANT LINE
SETS SHOULD BE ROUTED TO
ALLOW FILTER ACCESSIBILITY.
CONNECT GAUGES AND
START NITROGEN FLOW.
FLOW REGULATED NITROGEN (AT 1 TO 2 PSIG) THROUGH
THE REFRIGERATION GAUGE SET INTO THE VALVE STEM
PORT CONNECTION ON THE OUTDOOR UNIT LIQUID LINE
SERVICE VALVE AND OUT OF THE VALVE STEM PORT
CONNECTION ON THE SUCTION SERVICE VALVE.
PLACE A WET RAG AGAINST PIPING
PLATE AND AROUND THE SUCTION
LINE CONNECTION.
REPEAT PREVIOUS PROCEDURE FOR
LIQUID LINE.
PLEASE READ IMPORTANT ISSUES CONCERNING BRAZING
OPERATIONS IN THE BRAZING REFRIGERANT LINES SECTION
BEFORE PROCEEDING.
F
I
J
NOTE - Refer to instructions provided with outdoor unit
for leak testing, evacuating and charging procedures.
Figure 10. Brazing Connections