Specifications

ManualsBrandsSharp ManualsFurnaceR-305MR

Figure 59 1Direct Vent Termination Clearance

[] VEHTTERMINAL \\\\\ _ AIR SUPPLY INLET

AREAWHERE TERMINAL IS NOT PERMITED

Item

ClearanceDescription Canadian Installation (1) U.S.Installation (2)

Clearanceabovegrade,veranda,porch, deck,balcony,or 12 in. (305 ram).18 in. (457mm)above roofsurface 12in. (305 mr'n)

anticipatedsnow level

12 in. (305ram)for appliances > 10,000Btuh (3kW) and < 9in. (229 ram)for appliances > 10,000Btuh(3 kW)and <

Clearanceto awindow or door that maybe opened 100,000Btuh (30kW), 36 in.(914 mm)for appliances > 50,000Btuh(14.7kW), 12" (30cm)for appliances > 50,000

100,000Btuh(30 kW) Btuh(14.7kW)

Clearanceto apermanentlyclosedwindow

Verticalclearance to a ventilatedsoffit locatedabovethe

terminalwithina horizontaldistanceof 2' (61cm) fromthe

centerlineof the terminal

Clearanceto an unventilatedsoffit

Clearanceto an outsidecorner

Clearanceto an insidecorner

Clearanceto eachside of the centerlineextendedabove

electricalmeteror gas serviceregulatorassembly

For clearancesnot specifiedin ANSIZ223.1/NFPA54 or

CAN/CSAB149.1,clearancesshall bein accordancewith

localinstallationcodesand the requirementsofthe gassuppli-

erand the manufacture'sinstallationinstructions.

For clearancesnot spedfied in ANSI Z223.1/NFPA54 orCAN/

CSAB149.1,dearances shallbe in accordancewith localinstal-

lationcodesand the requirementsof the gas supplierandthe

manufacture'sinstallationinstructions.

3 ft. (.9 m) withina height15feet (4.5m) abovethe meter/reg- 3ft. (.9 m)within 15feet (4.5m) abovethemeter/regulator

ulator assembly assembly

3ft. (.9 m) For dearances not specifiedin ANSIZ223.1/NFPA

54or CAN/CSAB149.1,clearancesshall be in accordancewith

I Clearanceto service regulatorvent outlet 3 ft. (.9 m) localinstallationcodesand the requirementsof the gas supplier

andthe manufacture'sinstallationinstructions.

j Clearanceto non-mechanicalair supplyinletto buildingorthe 12 in. (305ram)for appliances > 10,000Btuh (3kW) and _ 9in. (23 cm)for appliances > 10,000Btuh(3 kW)and

100,000Btuh (30kW), 36" (91cm) for appliances > 100,000 50,000Btuh(15 kW),12" (30 cm)for appliances > 50,000

combustionair inletto any otherappliance Btuh(30 kW) Btuh(14.7kW)

K Clearanceto amechanicalair supplyinlet 6 ft. (1.8m) 3ft. (.9 m)above if within 10' (3m) horizontally

For clearancesnot spedfied in ANSI Z223.1/NFPA54 orCAN/

12 in. (305 ram)Permittedonly if veranda,porch, deck,or CSAB149.1,dearancesshallbe in accordancewith localinstal-

L Clearanceunderaveranda,porch, deck,or balcony balconyis fullyopen on aminimumof two sidesbeneaththe

lationcodesand the requirementsof the gas supplierandthe

floor, manufacture'sinstallationinstructions.

Clearanceto each sideof the centerlineextendedaboveor

M belowvent terminalof the furnaceto a dryeror water heater 12 in. (305mr'n) 12in. (305mr'n)

vent, or otherappliance'sdirect ventintake or exhaust.

Clearanceto thevent terminalof a dryer vent,water heater 3 ft. (.9 m) 3ft. (.9 m)

N vent, or otherappliancesdirect ventintake or exhaust.

O Clearancefrom aplumbingventstack 3 ft.(.9 m) 3ft. (.9 m)

For clearancesnot spedfied in ANSI Z223.1/NFPA54 orCAN/

7 ft. (2.1 m) A vent shallnotterminate directly abovea side- CSAB149.1,dearancesshallbe in accordancewith localinstal-

Clearanceabovea pavedsidewalk or paveddrivewaylocated walk orpaved drivewaythat islocatedbetweentwo single

P on publicproperty, lationcodesand the requirementsof the gas supplierandthe

familydwellingsand serves bothdwellings, manufacture'sinstallationinstructions.

> greater than, > greater than orequal to, < less than, < lessthan or equal to

(1) In accordancewith the currentCAN/CSAB149.1, NaturalGas and PropaneInstallationCode

(2) In accordancewiththe currentANSI Z223.1/NFPA54, National FuelGas Code

Notes:

1 Theventfor this applianceshall notterminate

a. Over publicwalkways;or

b. Near soffitvents or crawlspacevents orother areas wherecondensateorvapor could createa nuisanceor hazardor propertydamage;or

c. Where condensatevapor could causedamage orcouldbe detrimentalto the operationof regulators,reliefvalves,or otherequipment.

2. Whenlocatingvent terminations,considerationmust be givento prevailingwinds, location,and otherconditionswhich maycause recirculationof the combustionproductsof adjacentvents.

Recirculationcan cause poorcombustion,inletcondensateproblems,and acceleratedcorrosionof the heatexchangers.

3. Avoidventing underadeck or largeoverhang.Recirculationcould occurand causeperformanceorsystem problems.

44 Speoificati..... bject to change withoutnotice. 440 O1 4201 O1