GE Appliances NAM60V1TA4 One Piece Variable Speed Air Handler Instruction Manual
- June 21, 2024
- GE Appliances
Table of Contents
NAM60V1TA4 One Piece Variable Speed Air Handler
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Specifications
- Model: NAMV1 Series
- Type: One-Piece Variable Speed Air Handler
- Dimensions:
- A: 20-3/8 in. (518 mm)
- B: 55 in. (1397 mm)
- C: 546 in. (495 mm)
- D: 489 in. (489 mm)
Product Usage Instructions
Installation
1. Installation and service must be performed by a licensed
professional HVAC installer or equivalent.
2. Make sure to follow all local municipal building codes and
manufacturer’s installation instructions.
3. Ensure proper handling of the unit to avoid personal injury
or property damage.
Maintenance
1. Regular maintenance is crucial for efficient operation.
2. Check and replace air filters as recommended by the
manufacturer.
3. Keep the unit clean and free from debris for optimal
performance.
Troubleshooting
If you encounter any issues with the air handler, refer to the
troubleshooting section in the user manual or contact a
professional for assistance.
FAQ
Q: Can I install the air handler myself?
A: It is recommended to have the air handler installed by a
licensed professional HVAC installer or equivalent to ensure proper
installation and safety.
Q: How often should I replace the air filters?
A: Air filters should be checked regularly and replaced
according to the manufacturer’s recommendations, typically every 1
to 3 months depending on usage.
“`
INSTALLATION INSTRUCTIONS
NAMV1 Series
One-Piece Variable Speed Air Handler
This manual must be left with the homeowner for future reference.
This is a safety alert symbol and should never be ignored. When you see this
symbol on labels or in manuals, be alert to the potential for personal injury
or death.
Table of Contents
8QLW’LPHQVLRQV±8SÀRZ±,QFKHVPP ……………….2 Shipping and Packing List
…………………………………….3 General ………………………………………………………………3 Requirements
……………………………………………………..3 Use of Air Handler During Construction…………………..4
Installation Clearances …………………………………………4 Installation
………………………………………………………….4 Condensate Drain………………………………………………..7 Duct System and
Filters ………………………………………9 Brazing Refrigerant Lines ……………………………………..9 Sealing
the Unit ………………………………………………… 11 Electrical Connections ………………………………………..12
%’&%ORZHU&RQWURO …………………………………………16 $GMXVWLQJWKH%ORZHU6SHHG ………………………………..16
%ORZHU3HUIRUPDQFH …………………………………………..17 Checkout Procedures …………………………………………21
Professional Maintenance …………………………………..22
+RPHRZQHU0DLQWHQDQFH……………………………………22 Repairing or Replacing Cabinet Insulation
…………….22
WARNING
Improper installation, adjustment, alteration, service or maintenance can
cause property damage, personal injury or loss of life. Installation and
service must be performed by a licensed professional HVAC installer or
equivalent, service agency, or the gas supplier.
CAUTION
$VZLWKDQPHFKDQLFDOHTXLSPHQWFRQWDFWZLWKVKDUS sheet metal edges can result in
personal injury. Take FDUH ZKLOH KDQGOLQJ WKLV HTXLSPHQW DQG ZHDU JORYHV and
protective clothing.
IMPORTANT
The Clean Air Act of 1990 bans the intentional venting of refrigerant (CFCs,
HCFCs and HFCs) as of July 1, 1992. Approved methods of recovery, recycling or
UHFODLPLQJPXVWEHIROORZHG)LQHVDQGRULQFDUFHUDWLRQ may be levied for
noncompliance.
GE Appliances A Haier Company
Appliance Park Louisville, KY 40225
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(P) 507789-02G
507789-02G / 31-5000673-1
Issue 2336
Page 1 of 24
8QLW’LPHQVLRQV±8SÀRZ±,QFKHVPP
1 (25)
1 (25)
SUPPLY AIR OPENING
14-1/2 (368)
C
LINE VOLTAGE INLETS
(Top and Left Side)
3/4 (19)
TOP VIEW B
CIRCUIT BREAKER
COVER
1 (25)
LOW VOLTAGE INLETS
(Top and Right Side)
DETAIL OF PIPING PLATE
3/4 (19) SUCTION
LINE LIQUID
LINE
2-3/8 (60)
4-3/8 (111) 2-3/4
(70)
1-3/4 (44)
4-3/4 (121)
CONDENSATE DRAINS (2) (Horizontal)
CONDENSATE DRAINS (2) (Upflow and Downflow)
3-1/2 (89)
LINE VOLTAGE INLETS
(Top and Right Side)
LOW VOLTAGE INLETS
(Either Side)
22 (559)
AIR FLOW
A
PIPING PLATE
CONDENSATE DRAIN PIPING PLATE (3) (2-1/4 x 3-3/4)
FILTER ACCESS
SUCTION LINE
LIQUID LINE
1-1/8 (29)
D OPENING
FRONT VIEW
1-1/8 (29)
1/2
20-3/8
1-1/8
(13)
(518)
(29)
OPENING
SIDE VIEW
NOTE: 8QLWLVVKLSSHGFRQ¿JXUHGIRUKRUL]RQWDOULJKWKDQGDLUGLVFKDUJH8QLWPDEHFRQYHUWHGWRKRUL]RQWDOOHIWKDQGDLU GLVFKDUJHEUHSRVLWLRQLQJKRUL]RQWDOGUDLQSDQ’LPHQVLRQVUHPDLQWKHVDPHLQDOOFRQ¿JXUDWLRQV
Dimensions
A B C D
018
in.
mm
1105
470
419
413
024
in.
mm
1156
470
419
413
030
in.
mm
47
1194
470
419
413
036 / 042
in.
mm
1362
546
495
489
048
in.
mm
55
1397
546
495
489
060
in.
mm
1518
546
495
489
Page 2 of 24
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Shipping and Packing List
Package 1 of 1 contains: ±$ VVHPEOHGDLUKDQGOHUXQLWIDFWRUHTXLSSHGIRUXSÀRZ
RUKRUL]RQWDODLUGLVFKDUJHDSSOLFDWLRQLQFOXGHVXSÀRZ
DQGKRUL]RQWDOGUDLQSDQVDQGSUHLQVWDOOHGDLU¿OWHU
Check the air handler for shipping damage; if found, immediately contact the
last carrier. Check the unit rating SODWHWRFRQ¿UPWKDWGHOLYHUHGXQLWPDWFKHVRUGHU
General
The NAMV1 VHULHV DLU KDQGOHU ZLWK DOXPLQXP FRLO LV designed for indoor
installation only. As shipped, the XQLW LV UHDG IRU LQVWDOODWLRQ LQ HLWKHU
XSÀRZ RU KRUL]RQWDO right-hand air discharge applications. Horizontal drain
SDQ PD EH UHSRVLWLRQHG LQ WKH ¿HOG WR DOORZ LQVWDOODWLRQ in the horizontal
left-hand air discharge position. Various accessories are available and listed
in the NAMV1 Product 6SHFL¿FDWLRQIRURUGHULQJ
This instruction is intended as a general guide and does
QRWVXSHUVHGHORFDORUQDWLRQDOFRGHVLQDQZD&RQVXOW authorities having jurisdiction
before installation.
NOTE: 6SHFLDO SURFHGXUHV DUH UHTXLUHG IRU FOHDQLQJ WKH DOXPLQXP FRLO LQ WKLV
XQLW 6HH 3DJH LQ WKLV LQVWUXFWLRQ IRULQIRUPDWLRQ
Requirements
WARNING
([FHVVLYH :HLJKW +D]DUG 8VH WZR RU PRUH SHRSOH ZKHQ PRYLQJ DQG LQVWDOOLQJ WKH
XQLW )DLOXUH WR GR VR can result in back or other type of injury.
IMPORTANT
NAMV1 XQLWV LQFOXGH D IDFWRULQVWDOOHG FKHFN H[SDQVLRQ YDOYH ZKLFK ZLOO SURYLGH
RSWLPDO UHIULJHUDQW FRQWURO DQG VVWHP SHUIRUPDQFH ZLWK RXWGRRU XQLWV RI
varying capacities. These units must be installed as a part of a matched
system as outlined in the NAMV1 3URGXFW6SHFL¿FDWLRQ
These instructions are intended as a general guide. &RPSOLDQFH ZLWK DOO ORFDO
VWDWH RU QDWLRQDO FRGHV pertaining to this type of equipment should be
determined SULRU WR LQVWDOODWLRQ 5HDG WKLV LQVWUXFWLRQ PDQXDO DV ZHOO as the
instructions supplied in separate equipment, before starting the installation.
In addition to conforming to manufacturer’s installation instructions and
local municipal building codes, installation
RIDLUKDQGOHUXQLWVZLWKRUZLWKRXWRSWLRQDOHOHFWULFKHDW 0867 FRQIRUP ZLWK 1DWLRQDO
)LUH 3URWHFWLRQ$VVRFLDWLRQ (NFPA) standards: “Standard for Installation of Air
Conditioning and Ventilation Systems” (NFPA No. 90A) and “Standard for
Installation of Residence Type Warm Air Heating and Air Conditioning Systems”
(NFPA No. 90B).
All models are designed for indoor installation only. The
LQVWDOODWLRQRIWKHDLUKDQGOHU¿HOGZLULQJGXFWVVWHPHWF must conform to the
requirements of the National Electrical &RGH $16,1)3$ 1R ODWHVW HGLWLRQ LQ WKH
8QLWHG 6WDWHVDQGDQVWDWHODZVDQGORFDORUGLQDQFHVLQFOXGLQJ
SOXPELQJRUZDVWHZDWHUFRGHV
Local authorities having jurisdiction should be consulted before installation
is made. Such applicable regulations or requirements take precedence over the
general instructions in this manual.
,QVWDOO WKH FRQGLWLRQHG DLU SOHQXP GXFWV DQG DLU ¿OWHUV SURYLGHG LQ DFFRUGDQFH
ZLWK 1)3$ % 6WDQGDUG IRU the Installation of Warm Air Heating and Air-
Conditioning Systems (latest edition).
The air handler is shipped from the factory completely DVVHPEOHG 7KH XQLW LV
SURYLGHG ZLWK ÀDQJHV IRU WKH connection of the duct system.
Do not remove the cabinet knockouts until it has been GHWHUPLQHG ZKLFK
NQRFNRXWV ZLOO QHHG WR EH UHPRYHG IRU the installation.
6HOHFW WKH DLU GLVFKDUJH SRVLWLRQ ZKLFK EHVW VXLWV WKH VLWH conditions.
Consider required clearances, space, routing requirements for refrigerant
line, condensate disposal, ¿OWHUV GXFW VVWHP ZLULQJ DQG DFFHVVLELOLW IRU
VHUYLFH 5HIHU WR WKH UDWLQJ SODWH RQ WKH DLU KDQGOHU IRU VSHFL¿F information.
WARNING
‘DQJHU RI H[SORVLRQ .HHS ÀDPPDEOH materials and vapors, such as gasoline,
DZDIURPDLUKDQGOHU3ODFHDLUKDQGOHUVR that heating elements are at least 18
inches FP DERYH WKH ÀRRU IRU D JDUDJH LQVWDOODWLRQ )DLOXUH WR IROORZ WKHVH
instructions can result in death, explosion, RU¿UH
507789-02G / 31-5000673-1
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IMPORTANT
Excessive condensation may occur if the unit is installed
LQDZDUPKXPLGSODFH:KHQWKHXQLWLVLQVWDOOHGLQDQ unconditioned space, apply sealant
around electrical ZLUHV UHIULJHUDQW SLSLQJ DQG FRQGHQVDWH OLQHV DW WKH
SRLQWZKHUHWKHHQWHUWKHFDELQHW Apply sealant on the inside of the cabinet at the
SRLQW ZKHUH WKH HOHFWULFDO ZLUHV H[LW WKURXJK WKH FRQGXLW RSHQLQJ 7KLV ZLOO
DOVR NHHS ZDUP DQG PRLVW XQFRQGLWLRQHG DLU RXW RI WKH DLU KDQGOHU FDELQHW
ZKHUH LW ZLOO IRUP FRQGHQVDWH RQ WKH FRROHU FRQWURO ER[ DQG electrical
controls.
IMPORTANT
This unit is approved for installation clearance to combustible material as
stated on the unit rating plate. Accessibility and service clearances must
take precedence over combustible material clearances.
The air handler must be installed so that free access is
DOORZHGWRWKHFRLO¿OWHUFRPSDUWPHQWDQGEORZHUFRQWURO compartment.
· ‘XULQJ FRROLQJ RSHUDWLRQ H[FHVVLYH VZHDWLQJ PD RFFXU LI WKH DLU KDQGOHU LV
LQVWDOOHG LQ D ZDUP DQG humid space.
· If installed in an unconditioned space, sealant should EH DSSOLHG DURXQG WKH
HOHFWULFDO ZLUHV UHIULJHUDQW WXELQJ DQG FRQGHQVDWH OLQHV ZKHUH WKH HQWHU WKH
cabinet.
· (OHFWULFDOZLUHVVKRXOGEHVHDOHGRQWKHLQVLGHZKHUH they exit the conduit opening.
Sealant is required to prevent air leakage into, and condensate from forming
inside of, the air handler, the control box, and on the electrical controls.
Use of Air Handler During Construction
Units may be used for heating (heat pumps) or cooling of
EXLOGLQJVRUVWUXFWXUHVXQGHUFRQVWUXFWLRQLIWKHIROORZLQJ conditions are met to
ensure proper operation.
DO NOT USE THE UNIT FOR CONSTRUCTION HEAT UNLESS ALL OF THE FOLLOWING CRITERIA
ARE MET:
· A room thermostat must control the air handler. The
XVHRI¿[HGMXPSHUVLVQRWDOORZHG
· $LU¿OWHUPXVWEHLQVWDOOHGLQWKHVVWHPDQGPXVWEH maintained during construction.
· $LU ¿OWHU PXVW EH UHSODFHG XSRQ FRQVWUXFWLRQ completion.
· The air handler evaporator coil, supply fan assembly
DQGGXFWVVWHPPXVWEHWKRURXJKOFOHDQHGIROORZLQJ ¿QDOFRQVWUXFWLRQFOHDQXS
· $OO DLU KDQGOHU RSHUDWLQJ FRQGLWLRQV PXVW EH YHUL¿HG according to these
installation instructions.
EQUIPMENT MAY EXPERIENCE PREMATURE COMPONENT FAILURE AS A RESULT OF FAILURE TO
FOLLOW THE ABOVE INSTALLATION INSTRUCTIONS. FAILURE TO FOLLOW THE ABOVE
INSTALLATION INSTRUCTIONS VOIDS THE MANUFACTURER’S EQUIPMENT LIMITED WARRANTY.
GE $33/,$1&(6 DISCLAIMS ALL LIABILITY IN CONNECTION WITH INSTALLER’S FAILURE
TO FOLLOW THE ABOVE INSTALLATION INSTRUCTIONS.
NOTWITHSTANDING THE FOREGOING, INSTALLER IS RESPONSIBLE FOR CONFIRMING THAT
THE USE OF CONSTRUCTION HEAT OR COOLING IS CONSISTENT WITH THE POLICIES AND
CODES OF ALL REGULATING ENTITIES. ALL SUCH POLICIES AND CODES MUST BE ADHERED
TO.
Installation Clearances
Non-Ducted Return Closet Installation 7KH DLU KDQGOHU FDQ EH LQVWDOOHG LQ D
FORVHW ZLWK D IDOVH bottom to form a return air plenum. It may also be
installed ZLWKDUHWXUQDLUSOHQXPXQGHUWKHDLUKDQGOHU
/RXYHUVRUUHWXUQDLUJULOOHVDUH¿HOGVXSSOLHG/RFDOFRGHV
PDOLPLWDSSOLFDWLRQRIVVWHPVZLWKRXWDGXFWHGUHWXUQWR single-story buildings.
When a NAMV1 XQLWLVLQVWDOOHGLQDFORVHWZLWKDORXYHUHG
UHWXUQRSHQLQJWKHPLQLPXPRSHQDUHDIRUWKHORXYHUVZLOO be:
· 320 square inches for -18 and -24 models;
· 360 square inches for -30 and -36 models;
· 450 square inches for -42 thru -60 models
,IWKHIUHHDUHDLVQRWNQRZQDVVXPHDIUHHDUHDIRU
ZRRGRUDIUHHDUHDIRUPHWDOORXYHUVRUJULOOHV8VLQJ WKH ORXYHU GLPHQVLRQV DQG WKH RU
DVVXPSWLRQ determine if the open area meets the minimum open area listed
above.
If a return air plenum is used, the return air grille should be
LPPHGLDWHOLQIURQWRIWKHRSHQLQJLQWKHSOHQXPWRDOORZ
IRUWKHIUHHÀRZRIUHWXUQDLU:KHQQRWLQVWDOOHGLQIURQWRI the opening, there must be
adequate clearance around the DLUKDQGOHUWRDOORZIRUWKHIUHHÀRZRIUHWXUQDLU
Installation
(DFK XQLW FRQVLVWV RI D EORZHU DVVHPEO UHIULJHUDQW FRLO and controls in an
insulated galvanized steel factory-
Page 4 of 24
Issue 2336
507789-02G / 31-5000673-1
¿QLVKHG HQFORVXUH .QRFNRXWV DUH SURYLGHG IRU HOHFWULFDO ZLULQJHQWUDQFH
For ease in installation, it is best to make any necessary FRLO FRQ¿JXUDWLRQ
FKDQJHV EHIRUH VHWWLQJ DLU KDQGOHU LQ place.
Refrigerant Metering Device NAMV1 XQLWVDUHHTXLSSHGZLWKDIDFWRULQVWDOOHGFKHFN
expansion valve.
UP-FLOW / DOWN-FLOW DRAIN PAN
HORIZONTAL DRAIN PAN (MUST BE REMOVED)
Figure 1. 8SÀRZ&RQ¿JXUDWLRQ
8SÀRZ$SSOLFDWLRQ 1. The air handler must be supported on the bottom only
DQGVHWRQVROLGÀRRURU¿HOGVXSSOLHGVXSSRUWIUDPH
6HFXUHODWWDFKWKHDLUKDQGOHUWRWKHÀRRURUVXSSRUW frame. 2.
,ILQVWDOOLQJDXQLWLQDQXSÀRZDSSOLFDWLRQUHPRYHWKH horizontal drain pan. NOTE: 7KH
KRUL]RQWDO GUDLQ SDQ LV QRW UHTXLUHG LQ
XSÀRZDLUGLVFKDUJHLQVWDOODWLRQVLWVUHPRYDOSURYLGHV WKHEHVWHFLHQFDQGDLUÀRZ 3.
Place the unit in the desired location and slope unit. Connect return and
supply air plenums as required XVLQJVKHHWPHWDOVFUHZV 4. Install units that
have no return air plenum on a stand
WKDWLVDWOHDVW´IURPWKHÀRRU7KLVZLOODOORZSURSHU air return.
Horizontal Applications
IMPORTANT
When removing the coil, there is a possibility of danger of equipment damage
and personal injury. Be careful ZKHQ UHPRYLQJ WKH FRLO DVVHPEO IURP D XQLW
LQVWDOOHG in right- or left-hand applications. The coil may tip into the drain
pan once it is clear of the cabinet. Support the FRLOZKHQUHPRYLQJLW
NOTE: :KHQWKHXQLWLVLQVWDOOHGLQKRUL]RQWDODSSOLFDWLRQV D VHFRQGDU GUDLQ SDQ LV
UHFRPPHQGHG 5HIHU WR ORFDO FRGHV
NOTE: 7KLVXQLWPDEHLQVWDOOHGLQOHIWKDQGRUULJKWKDQG 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
SDQHOVLILQVWDOOLQJLQWKHKRUL]RQWDOSRVLWLRQ
Right-Hand Discharge 1. ‘HWHUPLQH ZKLFK SOXJV DUH UHTXLUHG IRU GUDLQ OLQH
connections. 2. With access door removed, remove drain line plugs to
install drain lines. 3. 6HWXQLWVRWKDWLWLVVORSHGWRZDUGWKHXSÀRZGUDLQSDQ
end of the unit and level from front to back of unit (see Figure 6). 4.
7KHKRUL]RQWDOFRQ¿JXUDWLRQLVVKRZQLQ)LJXUH
Drip Shield
Drains
AIR FLOW
RIGHT-HAND DRAINS
PLUGS
Figure 2. 5LJKW+DQG’LVFKDUJH&RQ¿JXUDWLRQ
5. If the unit is suspended, the entire length of the cabinet
must be supported. If you use a chain or strap, use a
piece of angle iron or sheet metal attached to the unit
HLWKHU DERYH RU EHORZ WR VXSSRUW WKH OHQJWK RI WKH
FDELQHW8VHVHFXULQJVFUHZVQRORQJHUWKDQLQFK
WRDYRLGGDPDJLQJWKHFRLORU¿OWHU6HH)LJXUH8VH VKHHW PHWDO VFUHZV WR FRQQHFW WKH
UHWXUQ DQG VXSSO air plenums as required.
ANGLE IRON OR SHEET METAL MAXIMUM 1/2″
LONG SCREW
E ANCE 4 IN. (102 MM)
AIR FLOW
FRONT VIEW
END VIEW
Figure 3. Suspending Horizontal Unit
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Left-Hand Air Discharge )RU KRUL]RQWDO OHIWKDQG DLU GLVFKDUJH WKH IROORZLQJ
¿HOG PRGL¿FDWLRQVDUHUHTXLUHG
FRONT EDGE OF HORIZONTAL DRAIN PAN
Figure 4. /HIW+DQG’LVFKDUJH&RQ¿JXUDWLRQ
1. Remove access panels and the corrugated padding EHWZHHQ WKH EORZHU DQG
FRLO DVVHPEO ‘LVFDUG WKH corrugated padding.
2. 3XOOWKHFRLODVVHPEOIURPXQLW3XOORWKHKRUL]RQWDO drain pan.
3. Remove the drain plugs from back drain holes on horizontal drain pan and
reinstall them on front holes.
IMPORTANT
After removal of drain pan plug(s), check drain hole(s) to verify that drain
opening is fully open and free of any debris. Also check to make sure that no
debris has fallen into the drain pan during installation that may plug up the
drain opening.
4. Rotate drain pan 180º front-to-back and install it on the opposite side of
the coil.
5. 5HPRYH VFUHZV IURP WRS FDS 5HPRYH GULS VKLHOG VFUHZ ORFDWHG LQ WKH FHQWHU
RI WKH EDFN FRLO HQG VHDO as illustrated in Detail A in Figure 5.
6. Rotate drip shield 180° front-to-back.
7. Remove plastic plug from left hole on coil front end seal and reinstall
plug in back hole. Reinstall drip
VKLHOGVFUHZLQIURQWFRLOHQGVHDO’ULSVKLHOGVKRXOG
GUDLQGRZQZDUGLQWRKRUL]RQWDOGUDLQSDQLQVLGHFRLO
8. 5RWDWH WRS FDS IURQWWREDFN DQG DOLJQ ZLWK XQXVHG VFUHZ KROHV +ROHV PXVW
DOLJQ ZLWK IURQW DQG back coil end plates (see Detail B in Figure 5). The top
cap has a 45º bend on one side and a 90º bend on the other. The 90º bend must
be on the same side as the horizontal drain pan as illustrated in Detail A in
Figure 5.
NOTE: %H YHU FDUHIXO ZKHQ UHLQVWDOOLQJ WKH VFUHZV LQWR WKH FRLO HQG SODWH
HQJDJLQJ KROHV 0LVDOLJQHG VFUHZVPDGDPDJHWKHFRLO
9. )URP WKH XSÀRZ SRVLWLRQ ÀLS FDELQHW WR WKH OHIW
DQGVHWLQWRSODFH5HSODFHEORZHUDVVHPEO6HFXUH 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
VXFWLRQOLQHVWRSUHYHQWLQ¿OWUDWLRQRIKXPLGDLU
10. Flip access door and replace it on the unit.
11. 6HWXQLWVRWKDWLWLVVORSHGWRZDUGWKHGUDLQSDQ end of the unit. Connect return
and supply air plenums DVUHTXLUHGXVLQJVKHHWPHWDOVFUHZV
12. If suspending the unit, it must be supported along the entire length of
the cabinet. If using chain or strap, use a piece of angle iron or sheet metal
attached to WKHXQLWHLWKHUDERYHRUEHORZVRWKDWWKHIXOOOHQJWK RI WKH FDELQHW LV
VXSSRUWHG 8VH VHFXULQJ VFUHZV QR ORQJHU WKDQ WR DYRLG GDPDJH WR FRLO RU ¿OWHU
DV illustrated in Figure 3. Connect return and supply air
SOHQXPVDVUHTXLUHGXVLQJVKHHWPHWDOVFUHZV
CABINET SUPPORT
TOP CAP ROTATED TO CORRECT POSITION
TOP CAP SCREWS
90º BEND
DRAIN PAN REINSTALLED
HERE
DRIP SHIELD
3/16″ PLASTIC PLUG (REAR COIL END SEAL)
DRIP SHIELD SCREW (FRONT COIL END SEAL)
DRAIN PAN SHIPPING LOCATION
INSTALL DRAIN PAN BETWEEN TAB AND EXTERIOR INNER WALL.
——– DRAIN PLUGS ——–
REINSTALLED HERE
REMOVED FROM HERE
FRONT VIEW
COIL SHOWN IN UPFLOW POSITION FOR EASY CONVERSION (LEFT-HAND AIR DISCHARGE)
DETAIL A
TOP CAP
DETAIL B
90º BEND
DETAIL C
ALIGN HOLES WITH HOLES IN COIL END PLATE. STARTING WITH THE ROUND HOLES ON
THIS END. BACK COIL END SEAL
Page 6 of 24
Figure 5. )LHOG0RGL¿FDWLRQIRU/HIW+DQG’LVFKDUJH
Issue 2336
507789-02G / 31-5000673-1
‘RZQÀRZ$SSOLFDWLRQ ,I GRZQÀRZ DSSOLFDWLRQ LV UHTXLUHG VHSDUDWHO RUGHU D
GRZQÀRZ FRQYHUVLRQ NLW DQG LQVWDOO SHU NLW LQVWUXFWLRQV See Table 1 for kit
information. Also use metal or class I
supply and return air plenums.
Model
Kit Number
018, 024, 030
Y9658
036, 042, 048, 060
Y9659
Table 1. ‘RZQÀRZ&RQYHUVLRQ.LWV
IMPORTANT
,IHOHFWULFKHDWVHFWLRQZLWKFLUFXLWEUHDNHUV(&%$LV installed in a NAMV1
XQLWLQDGRZQÀRZDSSOLFDWLRQWKH circuit breakers must be rotated 180° to the UP
position. See ECBA25 installation instructions for more details.
Condensate Drain
IMPORTANT
2Q XQLWV RI WKLV WSH ZKHUH WKH EORZHU ³GUDZV´ UDWKHU
WKDQ³EORZV´DLUWKURXJKWKHFRLOWUDSVPXVWEHLQVWDOOHG in the condensate drain lines
(primary and auxiliary, LI XVHG 7UDSV SUHYHQW WKH EORZHU IURP GUDZLQJ DLU
through the drain lines into the air supply.
IMPORTANT
$ ¿HOGIDEULFDWHG VHFRQGDU GUDLQ SDQ ZLWK D GUDLQ pipe to the outside of the
building, is required in all LQVWDOODWLRQVRYHUD¿QLVKHGOLYLQJVSDFHRULQDQDUHD
WKDWPDEHGDPDJHGERYHUÀRZIURPWKHPDLQGUDLQ pan. In some localities, local codes
may require a secondary drain pan for any horizontal installation.
Sloping The Unit 0DNH VXUH WKH XQLW LV VORSHG VLPLODU WR WKH VORSH VKRZQ LQ
)LJXUH VR WKDW WKH GUDLQ SDQ ZLOO HPSW FRPSOHWHO ZLWKRXWZDWHUVWDQGLQJLQWKHSDQ
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 7KHDLUKDQGOHULVSURYLGHGZLWK´137FRQGHQVDWHGUDLQ
connections.
IMPORTANT
On some pans, the primary and secondary drain holes have knockouts.
&RQ¿UPSULPDUDQGVHFRQGDUGUDLQVDUHRSHQ
1. NAMV1 XQLWV DUH HTXLSSHG ZLWK D GUDLQ SDQ ZKLFK includes green (main
drain) and red (secondary drain) SOXJV 8QVFUHZ WKH SOXJV WR UHPRYH WKHP EHIRUH
LQVHUWLQJFRQGHQVDWHGUDLQ¿WWLQJV
UNSCREW PLUGS AND CONNECT
PROPERLY SIZED FIELD-PROVIDED
FITTINGS AND DRAIN LINES.
DRAIN PAN
GREEN MAIN DRAIN PLUG
RED SECONDARY DRAIN PLUG
Figure 7. Drain Line Connections
2. ,QVWDOOSURSHUOVL]HG¿HOGSURYLGHGFRQQHFWLRQ¿WWLQJV and connect primary drain
line to the main drain pan connection. NOTE: :KHQ LQVWDOOLQJ GUDLQ OLQH
FRQQHFWLRQ ¿WWLQJV WR WKH GUDLQ SDQ KDQG WLJKWHQ WKH ¿WWLQJ DQG XVH D WKUHDG
VHDODQW 2YHUWLJKWHQLQJ WKH ¿WWLQJV FDQ VSOLW FRQQHFWLRQVRQWKHGUDLQSDQ
3. If the secondary drain line is to be used, remove the plug or the knockout
and route the drain line so that ZDWHU GUDLQLQJ IURP WKH RXWOHW ZLOO EH HDVLO
QRWLFHG EWKHKRPHRZQHU5HIHUWRORFDOFRGHVIRUGUDLQWUDS requirements on the
secondary drain line.
507789-02G / 31-5000673-1
Issue 2336
Page 7 of 24
ABOVE FINISHED SPACE?
NO
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.
PART # X3169
COMPACT OVERFLOW SWITCH WITH 3/4″ FEMALE SLIP INLET AND MALE ADAPTER, TWO PART
DESIGN FOR USE WHERE OBSTRUCTIONS PREVENT DIRECT THREADING
VENT MUST EXTEND ABOVE HEIGHT OF COIL DRAIN PAN BY TWO INCHES (51MM)
VENT
CLEAN OUT
PRESS IN (DO NOT GLUE)
YES
AIR HANDLER DRAIN PAN
OVERFLOW DRAIN
MAIN DRAIN
1″ X 3/4″ X 3/4″ REDUCING TEE WITH PLUG
NOTE — WHEN A AIR HANDLER IS LOCATED ABOVE A FINISHED SPACE THE SECONDARY DRAIN PAN MUST HAVE A LARGER FOOTPRINT THAN THE AIR HANDLER.
SECONDARY 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). 1 P-TRAP 49P66 REQUIRES A LARGER INSTALLATION SPACE THAN THE
J-TRAP 91P90.
1 P-TRAP 49P66, J-TRAP # 91P90 OR ANY PVC SCH 40 P- OR
J-TRAP 3/4″
2″ (51MM)
TRAP DEPTH TO APPROVED
DRAIN
FOR NEGATIVE PRESSURE COILS (BLOWER AFTER COIL) TRAPS ARE REQUIRED ON ALL DRAIN LINES CONNECTED TO COIL.
DRAIN LINE SHOULD SLOPE A MINIMUM OF ONE INCH PER 10
FEET (25MM PER 3
METERS)
Figure 8. 7SLFDO0DLQDQG2YHUÀRZ’UDLQ
4. Check again to ensure drain ports and drain pan are free of all debris.
5. Plug and check any unused drain pan openings for WLJKWQHVV 7RUTXH SOXJV WR
LQ OE WR SUHYHQW ZDWHU leaks or seepage from the drain pan.
6. Install a 2″ trap in the main (primary) drain lines as close to the unit
as practical (see Figure 8). Make sure
WKHWRSRIWKHWUDSLVEHORZWKHFRQQHFWLRQWRWKHGUDLQ
SDQWRDOORZFRPSOHWHGUDLQDJHRIWKHSDQ NOTE: +RUL]RQWDO UXQV PXVW KDYH DQ
DQWLVLSKRQ DLU YHQWVWDQGSLSHLQVWDOOHGDKHDGRIWKHKRUL]RQWDOUXQ 6HH )LJXUH $Q
H[WUHPHO ORQJ KRUL]RQWDO UXQ PD UHTXLUHDQRYHUVL]HGGUDLQOLQHWRHOLPLQDWHDLUWUDSV
NOTE: ‘R QRW RSHUDWH DLU KDQGOHU ZLWKRXW D WUDS LQ WKH PDLQ SULPDU GUDLQ 7KH
FRQGHQVDWH GUDLQ LV RQ WKHQHJDWLYHSUHVVXUHVLGHRIWKHEORZHUWKHUHIRUHDLU
EHLQJSXOOHGWKURXJKWKHFRQGHQVDWHOLQHZLOOQRWDOORZ
SRVLWLYHGUDLQDJHZLWKRXWDSURSHUWUDS
7. Route the drain line to the outside or to an appropriate drain. Drain
lines must be installed so they do not block service access to the front of
the air handler. A 24″ FOHDUDQFHLVUHTXLUHGIRU¿OWHUFRLORUEORZHUUHPRYDO and
service access.
NOTE: &KHFNORFDOFRGHVEHIRUHFRQQHFWLQJWKHGUDLQOLQH WR DQ H[LVWLQJ GUDLQDJH
VVWHP ,QVXODWH WKH GUDLQ OLQHV ZKHUHVZHDWLQJFRXOGFDXVHZDWHUGDPDJH
Test Condensate Drain Test the drain pan and drain line after installation:
1. 3RXU VHYHUDO TXDUWV RI ZDWHU LQWR GUDLQ SDQ 8VH
HQRXJKZDWHUWR¿OOERWKWKHGUDLQWUDSDQGWKHOLQH
2. Check the installed drain pan. Drain pan must be GUDLQLQJ FRPSOHWHO ‘UDLQ
OLQH ¿WWLQJV PXVW QRW EH leaking. Water must be draining from the end of the
primary drain line.
3. Correct any leaks found.
Page 8 of 24
Issue 2336
507789-02G / 31-5000673-1
Duct System and Filters
Duct System 7KHDLUKDQGOHULVSURYLGHGZLWKÀDQJHVIRUWKHFRQQHFWLRQ of the supply
plenum.
Supply and return duct system must be adequately sized to meet the system’s
air requirements and static pressure FDSDELOLWLHV 7KH GXFW VVWHP VKRXOG EH
LQVXODWHG ZLWK D PLQLPXP RI ´ WKLFN LQVXODWLRQ ZLWK D YDSRU EDUULHU LQ
conditioned areas or 2″ minimum in unconditioned areas.
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 R SOHQXP LQWR GXFW UXQV 7KH SOHQXP IRUPV DQ H[WHQVLRQ RI
WKH EORZHU KRXVLQJ DQG PLQLPL]HV DLU H[SDQVLRQORVVHVIURPWKHEORZHU
Filters $¿OWHULVSURYLGHG7DEOHOLVWVWKH¿OWHUVL]HIRUHDFKXQLW
NAMV1 -018, -024, -030 -036, -042, -048, -060
Filter Size in. 15″ x 20″ x 1″ 18″ x 20″ x 1″
Table 2. Unit Air Filter Size Chart
IMPORTANT
,I D KLJK HFLHQF ¿OWHU LV EHLQJ LQVWDOOHG DV SDUW RI
WKLVVVWHPWRHQVXUHEHWWHULQGRRUDLUTXDOLWWKH¿OWHU PXVW EH SURSHUO VL]HG +LJK
HFLHQF ¿OWHUV KDYH D KLJKHU VWDWLF SUHVVXUH GURS WKDQ VWDQGDUG HFLHQF
JODVVIRDP ¿OWHUV ,I WKH SUHVVXUH GURS LV WRR JUHDW system capacity and
performance may be reduced. The pressure drop may also cause the limit to trip
PRUH IUHTXHQWO GXULQJ WKH ZLQWHU DQG WKH LQGRRU FRLO to freeze in the summer,
resulting in an increase in the QXPEHURIVHUYLFHFDOOV%HIRUHXVLQJDQ¿OWHUZLWKWKLV
VVWHP FKHFN WKH VSHFL¿FDWLRQV SURYLGHG E WKH ¿OWHU manufacturer against the
data given in the appropriate 3URGXFW6SHFL¿FDWLRQV
Installing Duct System &RQQHFW VXSSO DLU GXFW WR WKH ÀDQJH RQ WRS RI WKH DLU
handler. If an isolation connector is used, it must be QRQÀDPPDEOH
Field-Fabricated Return Air Duct Flange For Horizontal Applications A return
air duct system is recommended, but not factorySURYLGHG ,I WKH XQLW LV
LQVWDOOHG LQ D FRQ¿QHG VSDFH RU closet, run a full-size return connection to a
location outside the closet.
Cabinet and Duct Flange
CABINET DOOR FLANGE
1-1/2 (38)
DUCT
FLANGE
3/4
(19)
3/4 (19)
1-1/2(38)
3/4 (19)
“A”
BRAKE DOWN 90 DEGREES
1/2
1/4 (6) DIA.
(13)
2-HOLES
UNIT SIZE
-018, -024, -030
-036, -042, -048, -060
“A”
18-3/8″ 21-1/2″
BOTTOM OF CABINET
DUCT ADAPTER
3/4 (19)
1-1/2 (38)
Figure 9. Cabinet and Duct Flange
Brazing Refrigerant Lines
5HIULJHUDQW OLQHV PXVW EH FRQQHFWHG E D TXDOL¿HG
WHFKQLFLDQLQDFFRUGDQFHZLWKHVWDEOLVKHGSURFHGXUHV
IMPORTANT
Refrigerant lines must be clean, dry, refrigerant-grade copper lines. Air
handler coils should be installed RQO ZLWK VSHFL¿HG OLQH VL]HV IRU DSSURYHG
VVWHP combinations.
Handle the refrigerant lines gently during the installation
SURFHVV6KDUSEHQGVRUNLQNVLQWKHOLQHVZLOOFDXVHD restriction.
Do not remove the caps from the lines or system connection points until
connections are ready to be completed.
WARNING
3ROROHVWHU32(RLOVXVHGZLWK+)&$UHIULJHUDQW absorb moisture very quickly. It is
very important that the refrigerant system be kept closed as much as possible.
DO NOT remove line set caps or service valve stub caps until you are ready to
make connections.
507789-02G / 31-5000673-1
Issue 2336
Page 9 of 24
PLEASE READ IMPORTANT ISSUES CONCERNING BRAZING OPERATIONS IN THE BRAZING
REFRIGERANT LINES SECTION BEFORE PROCEEDING.
NOTE – Refer to outdoor unit installation instructions for refrigerant piping
size requirements.
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.
A REMOVE ACCESS PANEL
B 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.
C REMOVE RUBBER PLUG FROM BOTH LIQUID AND
SUCTION LINES NOTE – NAMV1TA 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.
D EITHER REMOVE OR PUSH PIPE WRAPPING BACK
THROUGH HOLE IN PIPING PLATE BEFORE LINE SET CONNECTION AND BRAZING.
E CONNECT PIPES NOTE – REFRIGERANT LINE SETS SHOULD BE ROUTED TO ALLOW FILTER
ACCESSIBILITY.
LOW
PIPING PLATE
HIGH
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.
NITROGEN
Page 10 of 24
G PLACE A WET RAG AGAINST PIPING PLATE AND AROUND THE SUCTION LINE CONNECTION.
H BRAZE CONNECTION. ALLOW PIPE TO COOL TO ROOM TEMPERATURE BEFORE REMOVING WET
RAG FROM CTXV SENSING BULB AND PIPING PANEL AREA.
I REPEAT PREVIOUS PROCEDURE FOR LIQUID LINE.
J REINSTALL RUBBER GROMMETS INTO THE REFRIGERANT PIPING PANEL. NOTE – MAKE
SURE EXPANSION VALVE CAPILLARY TUBE IS NOT TOUCHING METAL EDGES OR COPPER
TUBING.
NOTE – Refer to instructions provided with outdoor unit for leak testing, evacuating and charging procedures.
Figure 10. Brazing Connections
Issue 2336
507789-02G / 31-5000673-1
WARNING
To prevent the build-up of high levels of QLWURJHQZKHQSXUJLQJLWPXVWEHGRQHLQD
ZHOOYHQWLODWHG DUHD 3XUJH ORZSUHVVXUH nitrogen (1 to 2 psig, 6.9 to 13.8 kPa)
through the refrigerant piping during EUD]LQJ7KLVZLOOKHOSWRSUHYHQWR[LGDWLRQ
and the introduction of moisture into the system.
WARNING
‘DQJHU RI ¿UH %OHHGLQJ WKH UHIULJHUDQW charge from only the high side may
result in SUHVVXUL]DWLRQ RI WKH ORZ VLGH VKHOO DQG suction tubing. Application
of a brazing torch to a pressurized system may result in ignition of the
refrigerant and oil mixture. &KHFN WKH KLJK DQG ORZ SUHVVXUHV EHIRUH applying
heat.
CAUTION
%UD]LQJ DOORV DQG ÀX[ FRQWDLQ PDWHULDOV ZKLFK DUH hazardous to your health.
Avoid breathing vapors or fumes from brazing RSHUDWLRQV 3HUIRUP RSHUDWLRQV RQO
LQ ZHOOYHQWLODWHG areas. Wear gloves and protective goggles or face shield to
protect against burns. :DVKKDQGVZLWKVRDSDQGZDWHUDIWHUKDQGOLQJEUD]LQJ
DOORVDQGÀX[
NOTE
Recommended line length is 50′ or less. If more than 50’ line set is required,
contact GE Appliances.
Sealing the Unit
6HDOWKHXQLWVRWKDWZDUPDLULVQRWDOORZHGLQWRWKHFDELQHW
:DUPDLULQWURGXFHVPRLVWXUHZKLFKUHVXOWVLQZDWHUEORZ
RSUREOHPV7KLVLVHVSHFLDOOLPSRUWDQWZKHQWKHXQLWLV installed in an unconditioned
area.
If installed in an unconditioned space, sealant should be
DSSOLHGDURXQGWKHHOHFWULFDOZLUHVUHIULJHUDQWWXELQJDQG
FRQGHQVDWHOLQHVZKHUHWKHHQWHUWKHFDELQHW
WARNING
7KHUH PXVW EH DQ DLUWLJKW VHDO EHWZHHQ WKH ERWWRP RI
WKHDLUKDQGOHUDQGWKHUHWXUQDLUSOHQXP8VH¿EHUJODVV sealing strips, caulking, or
equivalent sealing method EHWZHHQ WKH SOHQXP DQG WKH DLU KDQGOHU FDELQHW WR
HQVXUHDWLJKWVHDO5HWXUQDLUPXVWQRWEHGUDZQIURPD
URRPZKHUHWKLVDLUKDQGOHURUDQJDVIXHOHGDSSOLDQFH LH ZDWHU KHDWHU RU FDUERQ
PRQR[LGHSURGXFLQJ GHYLFHLHZRRG¿UHSODFHLVLQVWDOOHG
IMPORTANT
8VH GXFW WDSH DQGRU 3HUPDJXP WR VHDO FORVHG DQ VSDFH DURXQG WKH KROHV ZKHUH
WKH GUDLQ OLQHV H[LW WKH FDELQHW:DUPDLUPXVWQRWEHDOORZHGWRHQWHUWKURXJK any gaps
or holes in the cabinet.
507789-02G / 31-5000673-1
Issue 2336
Page 11 of 24
Electrical Connections
WARNING
(OHFWULFVKRFNKD]DUG’LVFRQQHFWDOOSRZHU supplies before servicing. Replace all
parts and panels before operating. Failure to do so can result in death or
electrical shock.
WARNING
5XQ 9 &ODVV ,, ZLULQJ RQO WKURXJK VSHFL¿HG ORZ YROWDJH RSHQLQJ 5XQ OLQH
YROWDJH ZLULQJ RQO WKURXJK VSHFL¿HGKLJKYROWDJHRSHQLQJ’RQRWFRPELQHYROWDJH in
one opening.
WARNING
Electric Shock Hazard. Can cause injury or death. Foil-faced insulation has
conductive characteristics similar to metal. Be sure there
DUHQRHOHFWULFDOFRQQHFWLRQVZLWKLQRIWKH insulation. If the foil-faced insulation
comes in FRQWDFW ZLWK HOHFWULFDO YROWDJH WKH IRLO FRXOG provide a path for
current to pass through to the outer metal cabinet. While the current produced
may not be enough to trip existing electrical safety devices (e.g., fuses or
circuit breakers), the current can be enough to cause an electrical shock
hazard that could cause personal injury or death.
· (OHFWULFDO ZLULQJ GLVFRQQHFW PHDQV DQG RYHUFXUUHQW protection are to be
supplied by the installer. Refer to the air handler rating plate for maximum
overFXUUHQW SURWHFWLRQ PLQLPXP FLUFXLW DPSDFLW DV ZHOO as operating voltage.
Select the proper supply circuit FRQGXFWRUVLQDFFRUGDQFHZLWKWDEOHVDQG
LQWKH1DWLRQDO(OHFWULF&RGH$16,1)3$1RRU tables 1 through 4 in the Canadian
Electric Code, Part I, CSA Standard C22.1.
· 7KH SRZHU VXSSO PXVW EH VL]HG DQG SURWHFWHG
DFFRUGLQJWRWKHVSHFL¿FDWLRQVVXSSOLHGRQWKHSURGXFW
· 7KLV DLU KDQGOHU LV IDFWRUFRQ¿JXUHG IRU YROW single phase, 60 cycles. For
208-volt applications, see “208 Volt Conversion” later in this section.
· 6HSDUDWH RSHQLQJV KDYH EHHQ SURYLGHG IRU 9 ORZ voltage and line voltage.
Refer to the dimension LOOXVWUDWLRQRIVSHFL¿FORFDWLRQ
· 7KLV XQLW LV SURYLGHG ZLWK KROHV IRU FRQGXLW 8VH provided caps to seal holes
not used.
· 7SLFDOXQLWZLULQJDVZHOODVZLULQJRIRSWLRQDO¿HOG installed electric heat) is
given in Figure 14. Refer to WKHLQVWUXFWLRQVSURYLGHGZLWKWKHHOHFWULFKHDWVHFWLRQ
for proper installation.
WARNING
USE COPPER CONDUCTORS ONLY
End Panel
Side
WARNING
Electric Shock Hazard. Can cause injury or death. Unit must be properly
grounded in DFFRUGDQFHZLWKQDWLRQDODQGORFDOFRGHV
/LQHYROWDJHLVSUHVHQWDWDOOFRPSRQHQWVZKHQ XQLW LV QRW LQ RSHUDWLRQ RQ XQLWV ZLWK
VLQJOH pole contactors. Disconnect all remote electric
SRZHUVXSSOLHVEHIRUHRSHQLQJDFFHVVSDQHO 8QLWPDKDYHPXOWLSOHSRZHUVXSSOLHV
· Wiring must conform to the current National Electric &RGH$16,1)3$ 1R RU &DQDGLDQ (OHFWULF &RGH Part I, CSA Standard C22.1, and local building codes. 5HIHUWRIROORZLQJZLULQJGLDJUDPV6HHXQLWQDPHSODWH for minimum circuit ampacity and maximum overcurrent protection size.
Page 12 of 24
Issue 2336
Figure 11. Electrical Connections 8SÀRZ&RQ¿JXUDWLRQ
507789-02G / 31-5000673-1
1. ‘LVFRQQHFWDOOSRZHUVXSSOLHV
2. Remove the air handler access panel.
3. 5RXWHWKH¿HOGVXSSOZLUHVWRWKHDLUKDQGOHUHOHFWULFDO connection box.
4. 8VH 8/OLVWHG ZLUH QXWV WR FRQQHFW WKH ¿HOG VXSSO
FRQGXFWRUVWRWKHXQLWEODFNDQGHOORZOHDGVDQGWKH
JURXQGZLUHWRJURXQGWHUPLQDOPDUNHG*1’
5. Replace the air handler access panel.
Control Panel Relocation To avoid the possibility of moisture damage to the
control LQ VRPH ULJKWKDQG GLVFKDUJH FRQ¿JXUDWLRQV WKH FRQWURO
SDQHOFDQEHUHORFDWHGWRWKHHQGSDQHODVVKRZQLQ)LJXUH 12.
1. 5HPRYHWKHWZRVFUHZVWKDWVHFXUHWKHFRQWUROSDQHO to the cabinet. Slide panel
out.
2. Slide the control panel into the notch on the electric KHDW PRXQWLQJ SDQHO
)LJXUH 8VLQJ WKH VFUHZV removed in Step 1, secure the control panel to the end
panel.
208 Volt Conversion 1. ‘LVFRQQHFWDOOSRZHUVXSSOLHV 2. Remove the air handler
access panel. 3. 8VLQJ WKH ZLULQJ GLDJUDP ORFDWHG RQ WKH XQLW DFFHVV
panel as a reference, move the 2 connected black transformer leads from the
240 volt terminal on the transformer to the 208 volt terminal on the
transformer.
208 / 240 VOLT TRANSFORMER
PRIMARY SECONDARY
240 Volts 208 Volts
Figure 13. Converting Unit from 240VAC to 208VAC
End Panel
Side
Figure 12. Control Panel Relocated to End Panel +RUL]RQWDO5LJKW&RQ¿JXUDWLRQ
507789-02G / 31-5000673-1
Issue 2336
Page 13 of 24
Figure 14. Typical Wiring Diagram NAMV1 $LU+DQGOHUZLWK(OHFWULF+HDW±9DULDEOH6SHHG0RWRU
Page 14 of 24
Issue 2336
507789-02G / 31-5000673-1
Y2
507789-02G / 31-5000673-1
WARNING
USE COPPER CONDUCTORS ONLY
Figure 15. /RZ9ROWDJH&RQQHFWLRQV9DULDEOH6SHHG0RWRU
Issue 2336
Page 15 of 24
BDC3 Blower Control
JP1 15 PIN PLUG (BOARD
JP1
TO MOTOR)
24V ACCESSORY CONTACTS
RATED FOR 1 AMP OR LESS
QC1
SERVICE 24V/1A QC2
OPERATIONAL SELECTOR PINS (AFFECTS BOTH
HEATING AND COOLING MODES)
NORM
4
3
–
2
TEST
1
ADJUST
HEAT
4 3 2 1
COOL
4 3 2 1
DELAY
CFM RUN
HEATING SPEED SELECTOR PINS
COOLING SPEED SELECTOR PINS
DIAGNOSTIC
FAN DELAY
LEDS
SELECTOR PINS
Figure 16. BDC3 Variable Speed Control Selections
NAMV1 XQLWV DUH HTXLSSHG ZLWK D YDULDEOHVSHHG PRWRU
WKDWLVFDSDEOHRIPDLQWDLQLQJDVSHFL¿HG&)0WKURXJKRXW the external static range. A
particular CFM can be obtained by positioning jumpers (COOL, HEAT, and ADJUST)
on the BDC3 control.
The jumpers are labeled 1, 2, 3, and 4. This indicates the selected air volume
(CFM). The ADJUST jumper is labeled Test, -, +, and Norm. The – and + pin
settings are used to add or subtract a percentage of the CFM selected. The
Test jumper is used to operate the motor in the test mode.
7KHGHODMXPSHUFRQWUROVWKHWLPLQJSDWWHUQLQZKLFKWKH fan delay occurs.
)LJXUH LOOXVWUDWHV WKH %’& FRQWURO 8VH WKH EORZHU performance tables to
determine the correct air volume for heat and cool speed taps.
Diagnostic LEDs located on the BDC3 control to assist in servicing the unit.
Read the jumper settings section before
DGMXVWLQJEORZHUVSHHG5HIHUWR)LJXUHIRULGHQWL¿FDWLRQ
Adjusting the Blower Speed
Diagnostic LEDs · RUN LEDLQGLFDWHVWKHUHLVDGHPDQGIRUWKHEORZHU
motor to run.
· CFM LED indicates the cubic feet per minute at
ZKLFKWKHXQLWLVRSHUDWLQJ7KHOLJKWÀDVKHVRQFHIRU approximately every 100 CFM. For
example, if the unit LVRSHUDWLQJDW&)0WKH&)0/(‘ZLOOÀDVK WLPHV ,I WKH &)0 LV &)0
/(‘ ZLOO ÀDVK IXOO WLPHVSOXVRQHIDVWRUKDOIÀDVK
$W WLPHV WKH OLJKW PD DSSHDU WR ÀLFNHU RU JORZ 7KLV LV
QRUPDODQGRFFXUVZKHQWKHFRQWUROLVFRPPXQLFDWLQJZLWK WKHPRWRUEHWZHHQFFOHV
0RYHWKHMXPSHUSLQVWRVHOHFWWKHEORZHUVSHHGQHHGHG to meet application CFM
requirements.
Jumper Settings
IMPORTANT
Before changing jumper setting, make sure the motor
KDVFRPSOHWHOVWRSSHG$QMXPSHUVHWWLQJFKDQJHZLOO
QRWWDNHSODFHZKLOHWKHPRWRULVUXQQLQJ
7DEOH OLVWV WKH UHFRPPHQGHG IDFWRU EORZHU VSHHG WDS selections for NAMV1
series units. These settings are
IRU QRPLQDO WRQQDJH PDWFKXSV ZLWK WKH NAMV1. When
PDWFKHGZLWKRWKHUVL]HVLWLVUHFRPPHQGHGWKDWWKH&)0 be adjusted to provide
approximately 400 CFM per ton.
Speed Tap Selection
Model
Cooling
Heating*
Note 1 Note 2 Note 3 Note 4
-18
COOL COOL HEAT HEAT PIN #2 PIN #2 PIN #2 PIN #2
-24
-30
-36
COOL COOL HEAT HEAT
-42
PIN #3 PIN #3 PIN #3 PIN #3
-48
-60
NOTES 1. Condensing Unit 2. Heat Pump 3. &RQGHQVLQJ8QLWZLWKHOHFWULFKHDWRQO 4. +HDW3XPSZLWKHOHFWULFKHDW * Minimum setting for heat
Table 3. Recommended Blower Speed Taps
7RFKDQJHMXPSHUSRVLWLRQVJHQWOSXOOWKHMXPSHURWKH
SLQVDQGLQVHUWLWRQWRWKHGHVLUHGVHWRISLQV7KHIROORZLQJ VHFWLRQ RXWOLQHV WKH
GLHUHQW MXPSHU VHOHFWLRQV DYDLODEOH DQG FRQGLWLRQV DVVRFLDWHG ZLWK HDFK RQH DV
LOOXVWUDWHG LQ Figure 16.
After the CFM for each application has been determined, WKH MXPSHU VHWWLQJV
PXVW EH DGMXVWHG WR UHÀHFW WKRVH JLYHQ LQ WKH EORZHU SHUIRUPDQFH WDEOHV )URP
WKH WDEOHV GHWHUPLQH ZKLFK URZ RI &)0 YROXPHV PRVW FORVHO
PDWFKHVWKHGHVLUHG&)02QFHDVSHFL¿FURZKDVEHHQ
FKRVHQ1250$/RU&)0YROXPHVIURPRWKHUURZV FDQQRW EH XVHG %HORZ DUH GHVFULSWLRQV RI
WKH MXPSHU selections.
Page 16 of 24
Issue 2336
507789-02G / 31-5000673-1
Adjust Jumper
7KH$’-867SLQVDOORZWKHPRWRUWRUXQDWQRUPDOVSHHG
VOLJKWOKLJKHUDSSUR[LPDWHOWKDQQRUPDOVSHHGRU
VOLJKWOORZHUDSSUR[LPDWHOWKDQQRUPDOVSHHG
7KHEORZHUSHUIRUPDQFHWDEOHVOLVWWKUHHURZV1250$/ DQG ZLWK WKHLU UHVSHFWLYH &)0
YROXPHV 1RWLFH WKDW IRU the 1.5 ton unit, for example, that the normal
adjustment setting for heat speed position #4 is 1050 CFM. The + adjustment
setting for that position is 1150 CFM and for the – adjustment setting is 950
CFM. After the adjustment setting has been determined, choose the remaining
speed MXPSHUVHWWLQJVIURPWKRVHRHUHGLQWKHWDEOHLQWKDWURZ
The TEST pin is available to bypass the BDC3 control and
UXQWKHPRWRUDWDSSUR[LPDWHOWRWHVWWKDWWKHPRWRULV
RSHUDWLRQDO7KLVLVEHQH¿FLDOSULPDULOLQWURXEOHVKRRWLQJ G must be energized for
motor to run.
Cool Jumper The COOL jumper is used to determine the CFM during HLWKHU FRROLQJ
RU KHDW SXPS RSHUDWLRQ ZLWKRXW D FDOO IRU electric heat. These jumper
selections are activated for FRROLQJ ZKHQ < DQG ‘6 WHUPLQDOV LQ WKH NAMV1 are
HQHUJL]HG 7KH DUH DFWLYDWHG IRU KHDWLQJ ZKHQ < LV energized.
7KH XQLW ZLOO SURYLGH RI WKH &22/ &)0 GXULQJ ¿UVW
VWDJHFRROLQJIRUWZRVWDJHRXWGRRUXQLWVRI&22/
VSHHGLVSURYLGHGIRUVVWHPVZLWKDVLQJOHVWDJHRXWGRRU unit.
)RU DSSOLFDWLRQV ZLWK ]RQH FRQWURO WKH DLU KDQGOHU &)0 volume is determined by
the control center. The minimum EORZHUVSHHGLVSUHGHWHUPLQHGDW&)0IRU -030 and
-036 units and 450 CFM for -042, -048 and -060 units. This speed is not
adjustable. See footnotes in the EORZHUSHUIRUPDQFHWDEOHV
:LWKWKHWKHUPRVWDWVHWIRU&RQWLQXRXV)DQDQGZLWKRXWD call for heating or cooling,
the NAMV1SURYLGHVRIWKH COOL CFM selected.
NOTE: )RUWZRVWDJHKHDWSXPSVDLUKDQGOHUZLOORSHUDWH DW RI WKH &22/ VHOHFWLRQ XQWLO
VXSSOHPHQWDO HOHFWULF KHDWLVGHPDQGHG$WWKDWWLPHWKHDLUKDQGOHUZLOORSHUDWH DW WKH
VHOHFWHG +($7 VSHHG 7KLV DUUDQJHPHQW SURYLGHV
ZDUPHUVXSSODLUGXULQJVHFRQGVWDJHKHDWLQJ
Blower Performance
NAM24V1 Blower Performance
0 through 0.80 in. w.g. External Static Pressure Range
Jumper Speed Positions
ADJUST Jumper Setting
“HEAT” Speed
1
2
3
4
First Stage “COOL” Speed
1
2
3
4
Second Stage “COOL” Speed
1
2
3
4
cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm
500 705 925 1150 365 520 665 810 500 705 925 1150
NORM
465 650 850 1050 350 485 610 740 465 650 850 1050
420 600 760 950 320 425 560 680 420 600 760 950
127(67KHHHFWRIVWDWLFSUHVVXUH¿OWHUDQGHOHFWULFKHDWHUUHVLVWDQFHLVLQFOXGHGLQWKHDLUYROXPHVOLVWHG
)LUVWVWDJHFRROLQJDLUYROXPHLVRI&22/VSHHGVHWWLQJ&RQWLQXRXVEORZHUVSHHGLVDSSUR[LPDWHORI&22/
speed setting.
=RQLQJ6VWHPDSSOLFDWLRQVPLQLPXPEORZHUVSHHGLVFIP
507789-02G / 31-5000673-1
Issue 2336
Page 17 of 24
NAM24V1 Blower Performance
0 through 0.80 in. w.g. External Static Pressure Range
Jumper Speed Positions
ADJUST Jumper Setting
“HEAT” Speed
1
2
3
4
First Stage “COOL” Speed
1
2
3
4
Second Stage “COOL” Speed
1
2
3
4
cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm
450 670 900 1120 340 450 650 770 450 670 900 1120
NORM
420 620 820 1050 300 400 600 700 420 620 820 1050
390 570 750 915 280 390 500 650 390 570 750 915
127(67KHHHFWRIVWDWLFSUHVVXUH¿OWHUDQGHOHFWULFKHDWHUUHVLVWDQFHLVLQFOXGHGLQWKHDLUYROXPHVOLVWHG
)LUVWVWDJHFRROLQJDLUYROXPHLVRI&22/VSHHGVHWWLQJ&RQWLQXRXVEORZHUVSHHGLVDSSUR[LPDWHORI&22/
speed setting.
=RQLQJ6VWHPDSSOLFDWLRQVPLQLPXPEORZHUVSHHGLVFIP
NAM30V1 Blower Performance
0 through 0.80 in. w.g. External Static Pressure Range
Jumper Speed Positions
ADJUST Jumper Setting
“HEAT” Speed
1
2
3
4
First Stage “COOL” Speed
1
2
3
4
Second Stage “COOL” Speed
1
2
3
4
cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm
680 885 1115 1340 490 635 770 930 680 885 1115 1340
NORM
620 810 1020 1220 440 575 715 845 620 810 1020 1220
550 725 905 1100 411 530 645 755 550 725 905 1100
127(67KHHHFWRIVWDWLFSUHVVXUH¿OWHUDQGHOHFWULFKHDWHUUHVLVWDQFHLVLQFOXGHGLQWKHDLUYROXPHVOLVWHG
)LUVWVWDJHFRROLQJDLUYROXPHLVRI&22/VSHHGVHWWLQJ&RQWLQXRXVEORZHUVSHHGLVDSSUR[LPDWHORI&22/
speed setting.
=RQLQJ6VWHPDSSOLFDWLRQVPLQLPXPEORZHUVSHHGLVFIP
NAM36V1 Blower Performance
0 through 0.80 in. w.g. External Static Pressure Range
Jumper Speed Positions
ADJUST Jumper Setting
“HEAT” Speed
1
2
3
4
First Stage “COOL” Speed
1
2
3
4
Second Stage “COOL” Speed
1
2
3
4
cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm
930 1155 1390 1530 640 815 970 1150 930 1155 1390 1530
NORM
830 1050 1260 1450 590 725 875 1025 830 1050 1260 1450
740 940 1135 1330 545 650 780 910 740 940 1135 1330
127(67KHHHFWRIVWDWLFSUHVVXUH¿OWHUDQGHOHFWULFKHDWHUUHVLVWDQFHLVLQFOXGHGLQWKHDLUYROXPHVOLVWHG
)LUVWVWDJHFRROLQJDLUYROXPHLVRI&22/VSHHGVHWWLQJ&RQWLQXRXVEORZHUVSHHGLVDSSUR[LPDWHORI&22/
speed setting.
=RQLQJ6VWHPDSSOLFDWLRQVPLQLPXPEORZHUVSHHGLVFIP
NAM42V1 Blower Performance
0 through 0.80 in. w.g. External Static Pressure Range
Jumper Speed Positions
ADJUST Jumper Setting
“HEAT” Speed
1
2
3
4
First Stage “COOL” Speed
1
2
3
4
Second Stage “COOL” Speed
1
2
3
4
cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm
1130 945 1575 1810 780 945 1110 1275 1130 945 1575 1810
NORM
1020 1255 1440 1650 710 860 1000 1160 1020 1255 1440 1650
920 1135 1300 1490 670 780 910 1040 920 1135 1300 1490
127(67KHHHFWRIVWDWLFSUHVVXUH¿OWHUDQGHOHFWULFKHDWHUUHVLVWDQFHLVLQFOXGHGLQWKHDLUYROXPHVOLVWHG
)LUVWVWDJHFRROLQJDLUYROXPHLVRI&22/VSHHGVHWWLQJ&RQWLQXRXVEORZHUVSHHGLVDSSUR[LPDWHORI&22/
speed setting.
=RQLQJ6VWHPDSSOLFDWLRQVPLQLPXPEORZHUVSHHGLVFIP
Page 18 of 24
Issue 2336
507789-02G / 31-5000673-1
NAM48V1 Blower Performance
0 through 0.80 in. w.g. External Static Pressure Range
Jumper Speed Positions
ADJUST Jumper Setting
“HEAT” Speed
1
2
3
4
First Stage “COOL” Speed
1
2
3
4
Second Stage “COOL” Speed
1
2
3
4
cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm
1375 1600 1820 2185 960 1125 1285 1620 1375 1600 1820 2185
NORM
1260 1455 1655 2085 885 1035 1185 1475 1260 1455 1655 2085
1125 1310 1490 1885 790 925 1060 1330 1125 1310 1490 1885
127(67KHHHFWRIVWDWLFSUHVVXUH¿OWHUDQGHOHFWULFKHDWHUUHVLVWDQFHLVLQFOXGHGLQWKHDLUYROXPHVOLVWHG
)LUVWVWDJHFRROLQJDLUYROXPHLVRI&22/VSHHGVHWWLQJ&RQWLQXRXVEORZHUVSHHGLVDSSUR[LPDWHORI&22/
speed setting.
=RQLQJ6VWHPDSSOLFDWLRQVPLQLPXPEORZHUVSHHGLVFIP
NAM60V1 Blower Performance
0 through 0.80 in. w.g. External Static Pressure Range
Jumper Speed Positions
ADJUST Jumper Setting
“HEAT” Speed
1
2
3
4
First Stage “COOL” Speed
1
2
3
4
Second Stage “COOL” Speed
1
2
3
4
cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm cfm
1600 1835 2030 2190 1110 1285 1380 1615 1600 1835 2030 2190
NORM
1465 1675 1855 2085 1000 1160 1250 1470 1465 1675 1855 2085
1320 1500 1675 1890 895 1035 1115 1320 1320 1500 1675 1890
127(67KHHHFWRIVWDWLFSUHVVXUH¿OWHUDQGHOHFWULFKHDWHUUHVLVWDQFHLVLQFOXGHGLQWKHDLUYROXPHVOLVWHG
)LUVWVWDJHFRROLQJDLUYROXPHLVRI&22/VSHHGVHWWLQJ&RQWLQXRXVEORZHUVSHHGLVDSSUR[LPDWHORI&22/
speed setting.
=RQLQJ6VWHPDSSOLFDWLRQVPLQLPXPEORZHUVSHHGLVFIP
Operating Sequence
System Demand
System Response
System Condition
Step Y1
Thermostat Demand
Relative Humidity
Air Handler
Y2 O G W1 W2 Status
Comp
CFM
D
&22/
Comments
NO CALL FOR DEHUMIDIFICATION
Normal Operation
1 On
On On
Accetpable
24 VAC
High
Compressor and indoor
DLUKDQGOHUIROORZ thermostat demand
%$6,&02′(RQODFWLYHRQD<WKHUPRVWDWGHPDQG
Normal Operation
1 On
On On
‘HKXPLGL¿FDWLRQ Call
2
On
On On
Accetpable
24 VAC
Demand
0 VAC
High High
Thermostat energizes Y1 and de-energizes D on a call for GHKXPLGL¿FDWLRQ
35(&,6,2102′(RSHUDWHVLQGHSHQGHQWRID<WKHUPRVWDWGHPDQG
Normal Operation
1 On
On On
Accetpable
24 VAC
‘HKXPLGL¿FDWLRQ Call
2
On
On On
Demand
0 VAC
High High
‘HKXPLGL¿FDWLRQPRGH EHJLQVZKHQKXPLGLWLV greater than setpoint
‘HKXPLGL¿FDWLRQ Call Only
1
On
On On
Demand
-XPSHUVDWLQGRRUXQLWZLWKDVLQJOHVWDJHRXWGRRUXQLW
With Condensing unit – Y1 to Y2 and R to O
With Heat Pump – Y1 to Y2
0 VAC
High
7KHUPRVWDWZLOOWUWR maintain room humidity VHWSRLQWEDOORZLQJ the room space to maintain a cooler room thermostat setpoint**
‘XULQJGHKXPLGL¿FDWLRQFRROLQJDLUKDQGOHUVSHHGLVDVIROORZVRI&22/FIPIRUIRUIRUDQG 060 units.
7KHUPRVWDWZLOOPDLQWDLQWKHURRPWHPSHUDWXUHXSWR)&FRROHUWKDQWKHURRPWKHUPRVWDWVHWWLQJLQSUHFLVLRQPRGH
Table 4. NAMV1 Thermostat and Single-Stage Outdoor Unit Operating Sequence
507789-02G / 31-5000673-1
Issue 2336
Page 19 of 24
Operating Sequence
System Demand
System Response
System Condition
Step Y1
Thermostat Demand
Relative Humidity
Air Handler
Y2 O G W1 W2 Status
Comp
CFM
D
&22/
NO CALL FOR DEHUMIDIFICATION
Comments
Normal Operation – Y1
Normal Operation – Y2
1 On
On On
2 On On On On
Accetpable
24 VAC
Accetpable
24 VAC
/RZ High
Compressor and indoor
DLUKDQGOHUIROORZ thermostat demand
Room Thermostat Calls for First-Stage Cooling
%$6,&02′(RQODFWLYHRQD<WKHUPRVWDWGHPDQG
Normal Operation
1 On
On On
‘HKXPLGL¿FDWLRQ Call
2
On On On On
Accetpable
24 VAC
Demand
24 VAC
/RZ High
Thermostat energizes Y2 and de-energizes D on a call for GHKXPLGL¿FDWLRQ
35(&,6,2102′(RSHUDWHVLQGHSHQGHQWRID<WKHUPRVWDWGHPDQG
Normal Operation
1 On
On On
Acceptable
24 VAC
‘HKXPLGL¿FDWLRQ Call
2
On On On On
Demand
0 VAC
/RZ High
‘HKXPLGL¿FDWLRQPRGH
EHJLQVZKHQKXPLGLWLV
greater than setpoint
‘HKXPLGL¿FDWLRQ Call Only
1
On On On On
Demand
0 VAC
High
7KHUPRVWDWZLOOWUWR maintain room humidity VHWSRLQWEDOORZLQJ the room space to maintain a cooler room thermostat setpoint**
Room Thermostat Calls for First- and Second-Stage Cooling
%$6,&02′(RQODFWLYHRQD<WKHUPRVWDWGHPDQG
Normal Operation
1 On On On On
Accetpable
24 VAC
High
‘HKXPLGL¿FDWLRQ Call
2
On On On On
Demand
0 VAC
High
35(&,6,2102′(RSHUDWHVLQGHSHQGHQWRID<WKHUPRVWDWGHPDQG
Normal Operation
1 On On On On
Accetpable
24 VAC
High
‘HKXPLGL¿FDWLRQ Call
2
On On On On
Demand
0 VAC
High
‘HKXPLGL¿FDWLRQ Call Only
1
On On On On
Demand
0 VAC
High
-XPSHUVDWLQGRRUXQLWZLWKDWZRVWDJHRXWGRRUXQLW
With Condensing unit – Y2 and R to O
With Heat Pump – none
Thermostat energizes Y2 and de-energizes D on a call for GHKXPLGL¿FDWLRQ
‘HKXPLGL¿FDWLRQPRGH EHJLQVZKHQKXPLGLWLV greater than setpoint
7KHUPRVWDWZLOOWUWR maintain room humidity VHWSRLQWEDOORZLQJ the room space to
maintain a cooler room thermostat setpoint**
‘XULQJGHKXPLGL¿FDWLRQFRROLQJDLUKDQGOHUVSHHGLVDVIROORZVRI&22/FIPIRUIRUIRUDQG 060 units.
7KHUPRVWDWZLOOPDLQWDLQWKHURRPWHPSHUDWXUHXSWR)&FRROHUWKDQWKHURRPWKHUPRVWDWVHWWLQJLQSUHFLVLRQPRGH
Table 5. NAMV1 Thermostat and Two-Stage Outdoor Unit Operating Sequence
Page 20 of 24
Issue 2336
507789-02G / 31-5000673-1
Heat Jumper The HEAT jumper is used to determine CFM during electric heat operation only. These jumper selections are activated RQOZKHQ:LVHQHUJL]HG
Delay Jumper 7KH ‘(/$< MXPSHU LV XVHG WR VHW WKH VSHFL¿F PRWRU fan operation during cooling mode. Depending on the application, one of four options may be chosen by moving the jumper to the appropriate set of pins.
1 Pins Jumpered
a. 0RWRUUXQVDWXQWLOGHPDQGLVVDWLV¿HG b. 2QFHGHPDQGLVPHWPRWRUUDPSVGRZQWRVWRS
A
OFF
100% CFM
COOLING DEMAND
B OFF
2 Pins Jumpered
a. 0RWRUUXQVDWXQWLOGHPDQGLVVDWLV¿HG b. 2QFHGHPDQGLVPHWPRWRUUXQVDWIRU
seconds.
c. 0RWRUUDPSVGRZQWRVWRS
OFF
A
B
C
100% CFM
100% CFM (60 seconds)
COOLING DEMAND
OFF
3 Pins Jumpered
a. 0RWRU UXQV DW IRU DSSUR[LPDWHO PLQXWHV ,I GHPDQG KDV QRW EHHQ VDWLV¿HG
DIWHU PLQXWHV
b. 0RWRUUXQVDWXQWLOGHPDQGLVVDWLV¿HG
c. 2QFHGHPDQGLVPHWPRWRUUDPSVGRZQWRVWRS
A
B
C
OFF
7 1/2 MIN 82%CFM
100% CFM
OFF
COOLING DEMAND
4 Pins Jumpered
a. 0RWRUUDPSVXSWR
b. 0RWRU WKHQ UXQV DW IRU DSSUR[LPDWHO PLQXWHV ,I GHPDQG KDV QRW EHHQ VDWLV¿HG
DIWHU PLQXWHV
c. 0RWRUUXQVDWXQWLOGHPDQGLVVDWLV¿HG
d. 2QFHGHPDQGLVPHWPRWRUUDPSVGRZQWRVWRS
B OFF A
C
7 1/2 MIN 82% CFM
100% CFM
COOLING DEMAND
D E OFF
Checkout Procedures
NOTE: 5HIHU WR RXWGRRU XQLW LQVWDOODWLRQ LQVWUXFWLRQV IRU VVWHP VWDUWXS
LQVWUXFWLRQV DQG UHIULJHUDQW FKDUJLQJ LQVWUXFWLRQV
Pre-Start-Up Checks · Is the air handler properly and securely installed?
· ,IKRUL]RQWDOOFRQ¿JXUHGLVWKHXQLWVORSHGXSWR LQFKWRZDUGGUDLQOLQHV”
· Will the unit be accessible for servicing?
· Has an auxiliary pan been provided under the unit
ZLWKVHSDUDWHGUDLQIRUXQLWVLQVWDOOHGDERYHD¿QLVKHG
FHLOLQJRULQDQLQVWDOODWLRQZKHUHFRQGHQVDWHRYHUÀRZ could cause damage?
· Have ALL unused drain pan ports been properly plugged?
· Has the condensate line been properly sized, run, trapped, pitched, and
tested?
· Is the duct system correctly sized, run, sealed, and insulated?
· +DYHDOOFDELQHWRSHQLQJVDQGZLULQJEHHQVHDOHG” · Is the indoor coil factory-
installed TXV properly sized
for the outdoor unit being used?
· Have all unused parts and packaging been disposed of?
· ,VWKH¿OWHUFOHDQLQSODFHDQGRIDGHTXDWHVL]H” ·
,VWKHZLULQJQHDWFRUUHFWDQGLQDFFRUGDQFHZLWKWKH
ZLULQJGLDJUDP” · Is the unit properly grounded and protected (fused)?
· ,V WKH WKHUPRVWDW FRUUHFWO ZLUHG DQG LQ D JRRG location?
· Are all access panels in place and secure?
Check Blower Operation 1. 6HWWKHUPRVWDWWR)$1217KHLQGRRUEORZHUVKRXOG
come on.
Check Cooling Operation 1. Set thermostat to force a call for cooling
(approximately
)ORZHUWKDQWKHLQGRRUDPELHQWWHPSHUDWXUH 2. The outdoor unit should come on
immediately and the
LQGRRU EORZHU VKRXOG VWDUW EHWZHHQ VHFRQGV later.
507789-02G / 31-5000673-1
Issue 2336
Page 21 of 24
3. &KHFNWKHDLUÀRZIURPDUHJLVWHUWRFRQ¿UPWKDWWKH system is moving cooled air.
4. Set the thermostat 5ºF higher than the indoor WHPSHUDWXUH 7KH LQGRRU
EORZHU DQG RXWGRRU XQLW VKRXOGFFOHR
&KHFN(OHFWULF+HDW,I8VHG 1. Set thermostat to call for auxiliary heat
(approximately
) DERYH DPELHQW WHPSHUDWXUH 7KH LQGRRU EORZHU DQG DX[LOLDU KHDW VKRXOG FRPH RQ
WRJHWKHU$OORZ D minimum of 3 minutes for all sequencers to cycle on. 2. Set
the thermostat so that it does not call for heat.
$OORZXSWRPLQXWHVIRUDOOVHTXHQFHUVWRFFOHR
Professional Maintenance
NOTICE
)DLOXUH WR IROORZ LQVWUXFWLRQV ZLOO FDXVH GDPDJH WR WKH unit.
7KLVXQLWLVHTXLSSHGZLWKDQDOXPLQXPFRLO$OXPLQXP FRLOV PD EH GDPDJHG E H[SRVXUH WR
VROXWLRQV ZLWK D S+ EHORZ RU DERYH 7KH DOXPLQXP FRLO VKRXOG
EHFOHDQHGXVLQJSRWDEOHZDWHUDWDPRGHUDWHSUHVVXUH (less than 50psi). If the coil
cannot be cleaned using ZDWHU DORQH LW LV UHFRPPHQGHG WR XVH D FRLO FOHDQHU
ZLWKDS+LQWKHUDQJHRIWR7KHFRLOPXVWEHULQVHG thoroughly after cleaning.
,QFRDVWDODUHDVWKHFRLOVKRXOGEHFOHDQHGZLWKSRWDEOH
ZDWHUVHYHUDOWLPHVSHUHDUWRDYRLGFRUURVLYHEXLOGXS (salt).
Homeowner Maintenance
IMPORTANT
‘RQRWRSHUDWHVVWHPZLWKRXWD¿OWHU$¿OWHULVUHTXLUHG WR SURWHFW WKH FRLO EORZHU DQG
LQWHUQDO SDUWV IURP H[FHVVLYHGLUWDQGGXVW7KH¿OWHULVSODFHGLQWKHUHWXUQ duct by
the installer.
,QVSHFW DLU ¿OWHUV DW OHDVW RQFH D PRQWK DQG UHSODFH RU
FOHDQDVUHTXLUHG’LUW¿OWHUVDUHWKHPRVWFRPPRQFDXVH of inadequate heating or
cooling performance.
5HSODFHGLVSRVDEOH¿OWHUV&OHDQDEOH¿OWHUVFDQEHFOHDQHG
EVRDNLQJLQPLOGGHWHUJHQWDQGULQVLQJZLWKFROGZDWHU
,QVWDOOQHZFOHDQ¿OWHUVZLWKWKHDUURZVRQWKHVLGHSRLQWLQJ
LQWKHGLUHFWLRQRIDLUÀRZ’RQRWUHSODFHDFOHDQDEOHKLJK
YHORFLW¿OWHUZLWKDGLVSRVDEOHORZYHORFLW¿OWHUXQOHVV return air system is properly
sized for it.
,I ZDWHU VKRXOG VWDUW FRPLQJ IURP WKH VHFRQGDU GUDLQ OLQH D SUREOHP H[LVWV
ZKLFK VKRXOG EH LQYHVWLJDWHG DQG FRUUHFWHG&RQWDFWDTXDOL¿HGVHUYLFHWHFKQLFLDQ
Repairing or Replacing Cabinet Insulation
IMPORTANT
DAMAGED INSULATION MUST BE REPAIRED OR REPLACED before the unit is put back
into operation. ,QVXODWLRQORVHVLWVLQVXODWLQJYDOXHZKHQZHWGDPDJHG separated or
torn.
Matte- or foil-faced insulation is installed in indoor HTXLSPHQW WR SURYLGH D
EDUULHU EHWZHHQ RXWVLGH DLU conditions (surrounding ambient temperature and
humidity) and the varying conditions inside the unit. If the insulation
EDUULHULVGDPDJHGZHWULSSHGWRUQRUVHSDUDWHGIURPWKH FDELQHW ZDOOV WKH VXUURXQGLQJ
DPELHQW DLU ZLOO DHFW WKH inside surface temperature of the cabinet.
7KH WHPSHUDWXUHKXPLGLW GLHUHQFH EHWZHHQ WKH LQVLGH and outside of the cabinet
can cause condensation on the
LQVLGHRURXWVLGHRIWKHFDELQHWZKLFKOHDGVWRVKHHWPHWDO corrosion and, subsequently,
component failure.
Repairing Damaged Insulation Areas of condensation on the cabinet surface are
an indication that the insulation is in need of repair.
,I WKH LQVXODWLRQ LQ QHHG RI UHSDLU LV RWKHUZLVH LQ JRRG condition, the
insulation should be cut in an X pattern, SHHOHG RSHQ JOXHG ZLWK DQ
DSSURSULDWH DOOSXUSRVH JOXH and placed back against the cabinet surface, being
careful to not overly compress the insulation so the insulation can retain its
original thickness. If such repair is not possible, replace the insulation. If
using foil-faced insulation, any cut, tear, or separations in the insulation
surface must be WDSHGZLWKDVLPLODUIRLOIDFHGWDSH
GLUE – Make sure there is full coverage of glue on the metal or insulation so
there are no areas where air pockets may form which can lead to sweating.
1. CUT INSULATION IN X PATTERN 2. APPLY GLUE 3. PRESS GLUED TABS AGAINST
CABINET
Figure 17. Recommended Blower Speed Taps
Page 22 of 24
Issue 2336
507789-02G / 31-5000673-1
Installing Contractor’s Name Installing Contractor’s Phone Job Address____
Installing Date___ Air Handler Model
___
SUPPLY AIR
Thermostat 9
Disconnect Switch
Line Voltage 3
8
1
Duct System
Temperature
5
2 Integrated Control
6 Blower Motor Amps 7 Electric Heat Amps
Duct Static
RETURN AIR
Filter
4 Drain Line
1 DUCT SYSTEM SUPPLY AIR DUCT Sealed Insulated (if necessary) Registers Open
and Unobstructed RETURN AIR DUCT Sealed Filter Installed and Clean Registers
Open and Unobstructed
2 INTEGRATED CONTROL Jumpers Configured Correctly (if applicable) Appropriate
Links in Place (if applicable)
3 VOLTAGE CHECK Supply Voltage _ Low Voltage ___ Electrial
Connections Tight
4 DRAIN LINE Leak Free
5 TOTAL EXTERNAL STATIC (dry coil) dry coil wet coil
Supply External Static __ __ Return External Static __ __
Total External Static = __ __ 6 ELECTRIC HEAT AMPS____ 7
INDOOR BLOWER AMPS INDOOR BLOWER CFM____ 8 TEMPERATURE DROP
(Cooling Mode) Return Duct Temperature Supply Duct Temperature –
Temperature Drop = ___ 8 TEMPERATURE RISE (Heating Mode)
Return Duct Temperature __ Supply Duct Temperature – __
Temperature Rise = __ 9 THERMOSTAT
Adjusted and Programmed Operation Explained to Owner
Explained Operation of System to Homeowner
Technician’s Name:___Date Start-Up & Performance Check Completed__
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Installing Contractor’s Name Installing Date____
Installing Contractor’s Phone___ Air Handler Model
___
Job Address____
1 Duct System
2 Integrated Control
Filter
Thermostat 9
Disconnect Switch
Line Voltage 3
1 Duct System
RETURN AIR
SUPPLY AIR
4 Drain Line
5 8
Duct Static
Temperature
6 Electric Heat Amps 7 Blower motor Amps
1 DUCT SYSTEM SUPPLY AIR DUCT Sealed Insulated (if necessary) Registers Open
and Unobstructed RETURN AIR DUCT Sealed Filter Installed and Clean Registers
Open and Unobstructed
2 INTEGRATED CONTROL Jumpers Configured Correctly (if applicable) Appropriate
Links in Place (if applicable)
3 VOLTAGE CHECK Supply Voltage _ Low Voltage ___ Electrial
Connections Tight
4 DRAIN LINE Leak Free
5 TOTAL EXTERNAL STATIC (dry coil) dry coil wet coil
Supply External Static __ __ Return External Static __ __
Total External Static = __ __ 6 ELECTRIC HEAT AMPS____ 7
INDOOR BLOWER AMPS INDOOR BLOWER CFM____ 8 TEMPERATURE DROP
(Cooling Mode) Return Duct Temperature Supply Duct Temperature –
Temperature Drop = ___ 8 TEMPERATURE RISE (Heating Mode)
Return Duct Temperature __ Supply Duct Temperature – __
Temperature Rise = __ 9 THERMOSTAT
Adjusted and Programmed Operation Explained to Owner
Explained Operation of System to Homeowner
Technician’s Name:___Date Start-Up & Performance Check Completed__
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