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Heat Anticipator

Set the heat anticipator according to the instructions
supplied by the thermostat manufacturer.

To determine

the heat anticipator setting:
1. Add the current draw of the system components; or
2. Measure the current flow on the thermostat

circuit

after the circulating blower motor has started.

Figure 16. Line Voltage Field Wiring

Field Supplied

Disconnect w/in

Sight of Furnace

Field Supplied

Panel Connector

Field Supplied

Fused Service

Panel

Black (Hot)

White (Neutral)

Green or Bare

(Ground)

Black

White

Black

White

Black

White

Field Line Voltage Wiring

Factory Line Voltage Wiring

Ground

Junction Box (may be int. or ext. to the furnace). These

connections can be made in the field supplied disconnect

at the furnace. NOTE: Connections made within the furnace

burner compartment do not require a junction box.

Ground

Furnace

Model

Number

CMF95-

Furnace

Input

(Btuh)

Cabinet

Width

(in.)

Nominal

Electrical

Supply

Maximum

Operating

Voltage

Minimum

Operating

Voltage

Maximum

Furnace

Amperes

Minimum

Wire

Gauge

Maximum

Fuse or Circuit

Breaker Amps*

Minimum

Circuit

Ampacity

Mamimum

Overcurrent

Protection

045

45,000

115-60-1

127

103

11.0

13.1

21.7

072

72,000

115-60-1

127

103

10.4

12.4

20.4

NOTE:

Minimum wire gauge and maximum fuse/circuit breaker amperage are based on MCA

and MOP

calculations. This furnace is

approved for installation with a 15 or 20 amp fuse/circuit breaker however wiring sizing must adhere to current version of the NEC and/or
applicable local codes depending upon the overcurrent protection.

Thermostat Wire Gauge

Recommended Thermostat Wire Length

2 - wire - Heating

4 or 5 wire - Cooling

55 ft.

25 ft.

90 ft.

45 ft.

140 ft.

70 ft.

225 ft.

110 ft.

Time-delay fuses or circuit breakers are required.

Table 4. Wire Length & Voltage Specifications

Figure 15. Low Voltage Field, Four-wire

Heating/Cooling Applications

STATUS

FLAME

GREEN

RED

180

COOL

HEA

120

YELLOW

BLOWER

OFF

DELAY

LO
W

HIGH

EA
C

XFMR

HUM

COM

SPEED

SELECT

3 AMP
FUSE

24V

NEUTRALS

ROOM

THERMOSTAT

A/C CONDENSING UNIT

CONDENSING UNIT

CONTROL BOX

EXPANSION PORT

(MOTOR CONNECTION)

FIELD WIRING

LOW VOLTAGE

CONNECTION

R
C
Y
G

NOTE:  The  “Y”  terminal
on  the  control  board
must be connected to the
thermostat  for  proper
cooling mode operation.

Connect

R & W

For Heating

Only

ELECTRONIC AIR CLEANER

MOTOR SPEED TAPS
(NOT USED)

HUMIDIFIER TAP

NEUTRAL LEADS

6 3

4 1

6 3

4 1

FA
N

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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