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Goodman Mfg IO-402G - page 1
CONDENSING AC UNIT SINGLE / THREE PHASE AIR CONDITIONERS INSTALLATION & SERVICE REFERENCE © 2010-2012 Goodman Manufacturing Company, L.P. 5151 San Felipe, Suite 500, Houston, TX 77056 www.goodmanmfg.com -or- www.amana-hac.com P/N: IO-402G Date: May 2012 See unit rating plate for initial charge. Important Safety Instructions The following symbo ...
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Goodman Mfg IO-402G - page 2
2 Installation Clearances Special consideration must be given to location of the con- densing unit(s) in regard to structures, obstructions, other units, and any/all other factors that may interfere with air circulation. Where possible, the top of the unit should be completely unob- structed; however, if vertical conditions require placement be- ne ...
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Goodman Mfg IO-402G - page 3
3 Use only refrigerant grade (dehydrated and sealed) copper tub- ing to connect the condensing unit with the indoor evaporator. After cutting the tubing, install plugs to keep refrigerant tubing clean and dry prior to and during installation. Tubing should always be cut square keeping ends round and free from burrs. Clean the tubing to prevent cont ...
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Goodman Mfg IO-402G - page 4
4 Refrigerant Line Connections NOTICE THIS UNIT IS SHI PPED WITH A NITROG EN/HELIUM HOLDING CH ARGE O NL Y . UNI T MU ST BE EV ACUA TED AND CHARGED PER INST ALLA TION INSTRUCTIONS WITH REFRIGERANT LISTED O N SERIAL RA TING PLA TE. NOTICE UNITS SHI PPED WITH A HOLDING CHARGE ARE INTENDED FOR COMPON ENT REPLACEM ENT ONL Y ON EXISTING SYSTEMS, AND NOT ...
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Goodman Mfg IO-402G - page 5
5 NOTICE THIS UNIT IS SHI PPED WITH A NITROG EN/HELIUM HOLDING CH ARGE O NL Y . UNI T MU ST BE EV ACUA TED AND CHARGED PER INST ALLA TION INSTRUCTIONS WITH REFRIGERANT LISTED O N SERIAL RA TING PLA TE. NOTICE UNITS SHI PPED WITH A HOLDING CHARGE ARE INTENDED FOR COMPON ENT REPLACEM ENT ONL Y ON EXISTING SYSTEMS, AND NOT I NTENDED FOR USE I N NEW SY ...
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Goodman Mfg IO-402G - page 6
6 Local codes often require a disconnect switch located near the unit; do not install the switch on the unit. Refer to the installa- tion instructions supplied with the indoor furnace/air handler for specific wiring connections and indoor unit configuration. Like- wise, consult the instructions packaged with the thermostat for mounting and location ...
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Goodman Mfg IO-402G - page 7
7 Charge V erification REFRIGERANT UNDER PRES SUR E! • Do not over charg e sy stem w ith refr iger ant. • Do not opera te uni t i n a va cuu m or a t ne gative p res- sure. Fa il ure t o fol l o w pro per proc e dur es ma y ca use pr ope rty da m ag e , pe r sona l i nj ur y or de a t h. WARN ING Us e refr ige ra nt cert i fied stan da r ds . U ...
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Goodman Mfg IO-402G - page 8
8 L I Q UI D PR E SSU R E S ATU RATED LIQUI D T E M P ER A T U R E º F P SIG R - 2 2 20 0 1 0 1 21 0 1 0 5 22 0 1 0 8 22 5 1 1 0 23 5 1 1 3 24 5 1 1 6 25 5 1 1 9 26 5 1 2 1 27 5 1 2 4 28 5 1 2 7 29 5 1 3 0 30 5 1 3 3 32 5 1 3 7 35 5 1 4 4 37 5 1 4 8 40 5 1 5 5 41 5 1 5 7 42 5 n /a 43 5 n /a 44 5 n /a 47 5 n /a 50 0 n /a 52 5 n /a 55 0 n /a 57 5 n ...
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Goodman Mfg IO-402G - page 9
9 Fixed Orifice CAUTION T o pre ven t pe rsona l injury , carefully c onn ect a nd disconne ct manifold ga uge ho ses. Es capin g liqu id re frigerant can ca use burns. Do no t ven t refrige rant into the atm osph ere. Re cove r all refrigerant during sy stem rep air a nd befor e final un it disp osal. 1. Purge gauge lines. Connect service gauge ma ...
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Goodman Mfg IO-402G - page 10
10 T roubleshooting Information For detailed service information refer to the Remote Condensing Unit Service manual. Complaint Unsatisfact ory Cooling POSSIB LE CAUSE DOT S IN ANA LYSIS GUIDE INDICATE "POSSIBLE CAUSE" SYMPTOM System wi ll not sta rt Compressor will not start - fan runs Compres sor and Conden ser F an will not s tart Evapo ...
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Goodman Mfg IO-402G - page 11
11 THIS PAGE INTENTIONALL Y LEFT BLANK ...
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Goodman Mfg IO-402G - page 12
12 SPLIT SYSTEMS AIR CONDITIONING AND HEA T PUMP HOMEOWNER’S ROUTINE MAINTENANCE RECOMMENDA TIONS We strongly recommend a bi-annual maintenance checkup be performed before the heating and cooling seasons begin by a qualified servicer . R EPLACE OR C LEAN F IL TER IMPORTANT NOTE: Never operate unit without a filter installed as dust and lint will ...
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Goodman Mfg IO-402G - page 13
Important Safety Instructions The following symbols and labels are used throughout this manual to indicate immediate or potential safety hazards. It is the owner’s and installer’s responsibility to read and comply with all safety information and instructions accompanying these symbols. Failure to heed safety information increases the risk of pe ...
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Goodman Mfg IO-402G - page 14
2 Use field-supplied spreader bars when lifting the unit to mini- mize the possibility of lifting cable/straps damage. To protect the cabinet louvers, use protective material such as plywood behind the cable/straps. Arrange the straps to form a central suspension point. NOTE: When raising and setting the unit, observe all safety rules. Remove shipp ...
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Goodman Mfg IO-402G - page 15
3 To a void po s sib le ex plo si on, use on ly ret u rna bl e ( n ot disp osable) serv ice cyli nders w hen r emovi ng r ef rig- erant fro m a s y stem. • Ensure th e cyli nd er is free of dama ge which coul d l e ad t o a lea k o r e xplos i on . • Ensure the hy drostat ic test date do es not excee d 5 years. • Ensure t he pr essu re rat in ...
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Goodman Mfg IO-402G - page 16
4 Refrigerant Line Connections NOTI CE THIS UN IT IS SHIP P ED WIT H A NITROGEN /H E LIU M HOL DING CHAR GE ONL Y . UNIT MUS T BE EVAC UATED AN D CHA RG ED P ER I NS T AL LA TIO N INSTR U CTIONS WIT H R EFRIG ERA NT L ISTED ON SERIAL RATING PLATE. NOTE: Holding charge must be removed before brazing. Open service valves slowly to remove holding char ...
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Goodman Mfg IO-402G - page 17
5 5000 4500 4000 3500 3000 2500 2000 1500 1000 500 0 1 2 3 4 5 6 7 8 9 10 LEA K(S) PRESENT MINU T E S V ACUUM IN M IC RON S CONDENSIBLES OR SMALL LEAK PR ESENT NO LEA KS NO CO NDENSIBLES • If the pressure rises to 1000 microns or less and remains steady the system is considered leak-free; proceed to startup. • If pressure rises above 1000 micro ...
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Goodman Mfg IO-402G - page 18
6 Example: A 7 ½ T on unit i s t o be i nstal led. The dist ance fr om the building to the u nit is 75’. Ca lculate the m inimum wire size assuming no mor e than 2% volt age d rop . MCA for 7 T on 230V unit = 43.3 (f rom S&R pl ate ). Applyi ng previous tab le wi re s izes less t han #8 A WG canno t be us ed for ci rcui t s wh ic h h ave a r ...
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Goodman Mfg IO-402G - page 19
7 For the 7-1/2 ton unit starting charge should be 15 lb of R-22 and 18 lbs for the 10 ton unit. The length of line set, indoor unit airflow, condensing unit location and number of tubing fittings will have an impact on final unit charge amount. Turn the elec- trical power on, and let the system run. Wait for the refrigerant pressures to stabilize. ...
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Goodman Mfg IO-402G - page 20
8 TROUBLESHOOTING ANAL YSIS T ABLE CO M P LAIN T PR O BA BL E CA USE RE M ED Y 1 . E x c essi v e c harge o f r efr i ger ant i n s y stem . 1 . Purge o r pump- do wn ex c ess i v e c harge. 2 . Inadeq uate s up pl y of ai r acros s the 2. M a k e ce r tai n that c o i l i s no t foul ed i n any c onde ns er c oi l. way , or that ai r i s no t r e- ...
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