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15

tightly to the base with the other hand. Trim the metal 
to allow one inch flange over the top of the base and 
seal that flange with metal tape.

8. Secure the top panel to the floor with 2 screws through 

the front flange. 

NOTE:

 If using a “V” or “U”-box crossover 

system, use manufacturers instructions for installation 
details.

Installing the Furnace on an MA-100 Base

1. Carefully lift the furnace over the universal base pan 

and set into position. Avoid damaging the feeder duct 
assembly. 

NOTE: 

Make sure the furnace is positioned 

against the back end of the base.

2. Open the furnace door and fasten the furnace to the 

base using #8 x 1/2” sheet metal screws.

Condensate Drainage

 WARNING:

The condensate produced by the furnace must 
be drained. Do not connect a water supply to 
the drainage hose of the furnace.

Figure 11. Condensate Drainage

J-Trap

Drain Pipe Routed

thru Slot in Cabinet

To External Drain

Inline Drain

Assembly

Collector 
Box Drain

Collector 

Box Drain

 CAUTION:

Do not install additional traps in the condensate 

drain.

• 

If  the  furnace  is  installed  in  an  area  where 

temperatures fall below freezing, special precautions 

must be made for insulating condensate drain lines 

that drain to the outdoors. If condensate freezes 

in the lines, this will cause improper operation or 

damage  to  the  furnace.  It  is  recommended  that 

all drain lines on the outside of the residence be 

wrapped with an industry approved insulation or 

material allowed by local code.

•  Before routing the drain tube out of the furnace, loosen 

the tube clamp and turn the tube so the preset 90° turn 
faces the intended direction of exit from the cabinet. Do 
not route the drain tube without rotating the tube first. 
This will kink the tube and prevent condensate from 
draining.

•  Care should be taken to route the drain line away from 

the burner box. Drain lines resting on the burner box 
can become kinked or collapsed due to the heat from 
the burner box.

•  The condensate drain may exit through the left or right 

slots in the bottom of the furnace(Figure 11). Make sure 
the flexible drain hose is not kinked.

•  The condensate should drain from the plastic collector 

box  as  droplets  or  a  small  stream.  If  you  notice  the 
furnace has operated for more than 5 minutes without 
draining or the status lights on the control board indicates 
an open pressure switch (Table 6, page 27) follow the 
steps below.
1. Remove the collector box soft tube (Figure 11) and 

verify the exit from the collector box is clear of any 
debris or obstructions.

2. Replace this tube and verify the fit to the header spout 

is air tight. Air will be drawn into the header if this 
connection is not tight.

3. Check other tube connections along the drain system. 

Verify that all are air tight.

Содержание CMF95 Series

Страница 1: ...l your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department WARNING RISQUE D INCENDIE OU D EXPLOSION Le non respec...

Страница 2: ...Base 13 MA 100 Universal Base Installation 14 Installing the Furnace on an MA 100 Base 15 Condensate Drainage 15 GAS SUPPLY PIPING 16 Leak Check 16 High Altitude Application 17 Converting to LP Propan...

Страница 3: ...ersonal injury or death This furnace must be installed in accordance with these instructions all applicable local building codes and the current revision of the National Fuel Gas Code ANSI Z223 1 NFPA...

Страница 4: ...uses the appliance orequipment Behard wired batterypoweredorboth ShallcomplywithNFPA720 2005Edition c A product approved vent terminal must be used andifapplicable aproduct approvedairintakemust be us...

Страница 5: ...tworkshouldbeappropriatelysizedtothecapacity of the furnace to ensure its proper airflow rating For installations above 2 000 ft the furnace should have a sea level input rating large enough that it w...

Страница 6: ...SSEMENT RISQUE D EMPOISONNEMENT AU MONOXYDE DE CARBONED Le non respect des consignes suivantes portant sur chacun des appareils raccord s au syst me d vacuation mis en service pourrait entra ner l emp...

Страница 7: ...t be known When estimating the length of vent runs consideration must be made to the effect of elbows and other fittings This is conveniently handled using the idea of equivalent length Thismeansthefi...

Страница 8: ...mination to windows and building air intakes Vent and combustion air intake terminations must be located to ensure proper furnace operation and conformance to applicable codes A vent terminal must be...

Страница 9: ...hown in Figure 4 The roof penetration mustbeproperlyflashedandwaterproofedwithaplumbing roof boot or equivalent flashing Vent and combustion air piping may be installed in an existing chimney which is...

Страница 10: ...I VentilAire IV Figure 5 VentilAire III IV Vent Freezing Protection CAUTION When the vent pipe is exposed to temperatures below freezing i e when it passes through unheated spaces chimneys etc the pip...

Страница 11: ...vent leakage It is good practice to seal all connections and joints with industrial grade sealing tape or liquid sealant Requirements for sealing ducts vary from region to region Consult with local co...

Страница 12: ...CAUTION HAZARD OF ASPHYXIATION DO NOT COVER OR RESTRICT FLOOR RETURN AIR OPENING or equivalent For closet installation with less than 6 front clearance but not less than 1 a louvered door must be used...

Страница 13: ...fastenthefrontofthefurnace and the base to the floor with 8 x 1 2 sheet metal screws FURNACE INSTALLATION NOTE Sinceallinstallationsaredifferent thesequenceof these steps may differ from the actual in...

Страница 14: ...opening and center the top of the feeder duct in 14 1 8 x 14 1 8 floor opening 5 Using the feeder duct as a guide mark and cut a 12 x 12 opening in the supply duct Remove the base and transition feede...

Страница 15: ...will cause improper operation or damage to the furnace It is recommended that all drain lines on the outside of the residence be wrapped with an industry approved insulation or material allowed by loc...

Страница 16: ...l gas hookups are shown in Figure 12 Leak Check FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in serious injury or property damage Installation and service must be pe...

Страница 17: ...nstallation may only be accomplished withfactorysuppliedorifices Donotattemptto drill out orifices in the field Improperly drilled orifices may cause fire explosion carbon monoxide poisoning personal...

Страница 18: ...ple Elevation 5 000 feet Type of Gas Natural Gas Local Heating Value of Gas 750 From Table 10 find 750 and follow down the column stop at the 5 000 feet row The heating value listed is LOW Table 12 wi...

Страница 19: ...ten until snug Make sure LP is visible after conversion Gas Pressure Verification Measuring the Supply Gas Pressure 1 Turn OFF the gas supply at the manual valve located on the outside of the unit 2 U...

Страница 20: ...are lit check all gas connections for leaks again with the soap and water solution Measuring the Manifold Pressure The manifold pressure must be measured by installing a pressure gauge Manometer Magn...

Страница 21: ...tothefurnace nameplate or Table 4 An electrical disconnect must be installed readily accessiblefromandlocatedwithinsightofthefurnace See Figure 18 page 29 or the wiring diagram label inside of the con...

Страница 22: ...otection2 045 45 000 18 115 60 1 127 103 11 0 14 20 13 1 21 7 072 72 000 18 115 60 1 127 103 10 4 14 20 12 4 20 4 NOTE Minimum wire gauge and maximum fuse circuit breaker amperage are based on MCA1 an...

Страница 23: ...e input rate in Btuh See example 6 The manifold pressure must be set to the appropriate valueforeachinstallationbyaqualifiedinstaller service agency or the gas supplier WARNING Do not attempt to drill...

Страница 24: ...nutes before taking any temperature readings The temperature rise is the difference between the supply and return air temperatures Verifying Burner Operation CAUTION The door over the burners may only...

Страница 25: ...alve and inducer remains energized The control goes to blower on delay 8 If flame is present the control energizes the blower on theselectedHEATspeed30secondsafterthegasvalve opened The gas valve and...

Страница 26: ...piping at the furnace 6 Remove the piping between the gas valve and the ground joint union If applicable 7 Remove the burner box door 6 screws 8 Remove 4 screws securing the manifold assembly to the b...

Страница 27: ...Fault Flash On Open Limit Switch Fault Flash Off Motor Fault On Off Diagnostic Description Yellow LED Low Flame Sensor Signal Continuous Flash Flame Present On Table 6 Control Board Fault Conditions...

Страница 28: ...8 1 3 8 1 5 8 24 3 16 4 3 4 2 7 8 1 3 4 1 3 4 16 1 2 13 5 8 3 1 2 X 1 1 2 Slots for Gas Pipe Condensate drains Typ FRONT VIEW LEFT SIDE TOP VIEW BOTTOM VIEW 3 3 4 Dia 2 Places 32 2 7 8 Dia Hole for Li...

Страница 29: ...SINGLE STAGE THERMOSTAT TO OUTDOOR UNIT FIELD WIRING LEGEND LOW VOLTAGE HIGH VOLTAGE WIRING DIAGRAM For 80 and 90 Single Stage Furnaces Refer to the Installation Instructions provided with the furnac...

Страница 30: ...ER REVOLUTION OF GAS METER 1 5 10 10 360 1 800 3 600 12 300 1 500 3 000 14 257 1 286 2 571 16 225 1 125 2 250 18 200 1 000 2 000 20 180 900 1 800 22 164 818 1 636 24 150 750 1 500 26 138 692 1 385 28...

Страница 31: ...T BTU 45 000 72 000 0 to 1 999 FT 49 47 2 000 to 2 999 FT 50 48 3 000 to 3 999 FT 50 48 4 000 to 4 999 FT 51 48 5 000 to 5 999 FT 51 49 6 000 to 6 999 FT 51 49 7 000 to 7 999 FT 52 50 8 000 to 8 999 F...

Страница 32: ...ls All Clearances in this Figure apply on both walls G Clearance to inside corner All Clearances in this Figure apply on both walls All Clearances in this Figure apply on both walls H Clearance to eac...

Страница 33: ...ble Wall Normal Snow Level COMBUSTION AIR Seal Caulk Around Pipes at Building 90 Elbow 7 12 Min 90 Elbow 90 Elbow Support System on Vertical Rise FLUE PIPE COMBUSTION AIR See Table 2 for PVC Pipe Leng...

Страница 34: ...34...

Страница 35: ...35...

Страница 36: ...efully before starting the installation Return these instructions to the customer s package for future reference PROPOSITION 65 WARNING This product contains chemicals known to the state of California...

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