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Form I-XE/CRGB/RPB, Mfg No. 131782 Rev 4, Page 9

FIGURE 6A - Mounting Support Dimensions (inches/mm)

A

B

4x4 Treated Lumber

Leave both

ends open

for ventilation.

Blower

Cabinet

Furnace

Section

Field

Supplied

Duct

4x4 Treated

Lumber

= Cross Support Locations

Field

Supplied

Duct

FIGURE 6B - Cross-Support Locations

The field-supplied, weather-resistant cross-support structure must be
adequate for the weight of the system (including air conditioning coil if
applicable), and all cross-supports should run the entire width of the
system supporting the 4x4 wooden rails at the recommended locations.

If the treated wooden rails are not being placed directly on the roof
surface, cross-supports should be placed underneath the rails at the
ends of the unit and at all cabinet "joints" (between the blower cabinet
and the furnace section; between the furnace and the optional downturn
plenum or coil cabinet; and between a coil cabinet and a downturn
plenum). See 

FIGURE 6B

.

Mounting on a Roof Curb

 - Whether using an optional roof curb

available with the system or a field-supplied curb, the curb must be
secure, square and level. The top surface of the roof curb must be
caulked with 1/4" x 1-1/4" sealant tape or two 1/4" beads of suitable
sealant. The unit must be sealed to the curb to prevent water leakage
into the curb area due to wind blown rain and capillary action. Except
for the curb assembly details which are specific to the optional roof
curb available with the system, the information and requirements in
this section apply to all curbs. See 

FIGURE 8

, page 10, and the curb

installation instructions below.

FIGURE 7 - Duct Opening Dimensions in Relation to Roof
Curb Option - inches (mm)

1-5/8

(41)

1-5/8

(41)

1-5/8 (41)

1-5/8 (41)

1-5/8 (41)

1-5/8 (41)

19-1/2

 (495)

19-1/2

(495)

H

H

G

Return

Duct

Supply

Duct

Roof Curb

1-5/8

(41)

1-5/8

(41)

1-5/8" (41mm) is the measurement from duct opening to
inside edge of roof curb.

Duct openings should be 1" larger than the duct size for
installation clearance.

Roof Curb Assembly and Installation Instructions (Refer to
FIGURE 8, page 10)

Curbs are shipped unassembled. Field assembly and mounting on the
roof are the responsibility of the installer. All required hardware neces-
sary to complete the assembly is supplied.

Before installing roof curb, verify that the size is correct for the
system being installed.
1.

Position curb cross rails and curb side rails as illustrated in

FIGURE 8

, page 10. If there are two side pieces to a side, fasten

them with splice plates and hardware as illustrated in the splicing
detail drawing. Join the corners as illustrated in the corner detail.

2.

Check the assembly for squareness. Adjust the roof curb so that
the diagonal measurements are equal within a tolerance of + or -
1/8" (3mm).

3.

Level the roof curb. To ensure a good weather tight seal between
the curb cap and the roof curb, the roof curb must be leveled in
both directions with no twist end to end. Shim level as required
and secure curb to roof deck before proceeding with flashing.

4.

Install field-supplied flashing.

5.

Before placing the unit into position, apply furnished 1/4" x
1-1/4" foam sealant tape to top surface of curb, making good butt
joint at corners. The unit must be sealed to the curb to prevent
water leakage into the curb area due to blown rain and capillary
action.

Model

G

Series

H

With Downturn

w/Cooling Coil Cabinet

CRGB and

Plenum, Option

w/Downturn, Options

RPB Sizes

AQ5 or AQ8

AU 11, 12, 13, or 14

75, 100,

17-3/8"

38-5/8"

75-31/32"

125

441mm

981mm

1930mm

150, 175

22-7/8

38-5/8

81-15/32

581mm

981mm

2069mm

200, 225

28-3/8

38-5/8

86-31/32

721mm

981mm

2209mm

250, 300

36-5/8

38-5/8

95-1/4

930mm

981mm

2419mm

350

42-1/8

38-5/8

100-3/4

1070mm

981mm

2559mm

400

47-5/8

38-5/8

106-1/4

1210mm

981mm

2699mm

Bottom Duct Connections 

- The blower section and optional down-

turn plenum have duct flanges for connection to return air and supply
air ducts. Duct opening sizes and curb spacing shown in 

FIGURE 7

 is

for currently manufactured curbs that are available from the system
manufacturer.

Standard 

He ate r  

and 

Blowe r 

Package

Wi th Factory-

Instal l e d    

Downturn 

Pl e num 

Cabi ne t 

(O ption AQ )

W i th 

Shippe d- 
Se parate  

C ool ing 

C oil  

C abi ne t 

(O pti on AU)

Wi th Shi ppe d-

Se parate  

C ool i ng  C oi l 
C abi ne t  wi th 

Downturn 

Ple num 

(O pti on AU)

A

ll 

Co

nfi

g

ur

a

ti

o

ns 

"A"

"A"

"A"

"A"

"B"

75, 100, 

125

60-5/8"

84-9/16"

98-3/8"

122-1/4"

24-5/16"

150, 175

60-5/8"

84-9/16"

103-7/8"

127-7/8"

29-13/16"

200, 225

60-5/8"

84-9/16"

109-3/8"

133-3/8"

35-5/16"

250, 300

60-5/8"

84-9/16"

117-5/8"

141-5/8"

43-9/16"

350

60-5/8"

84-9/16"

123-1/8"

147-1/8"

49-1/16"

400

60-5/8"

84-9/16"

128-5/8"

152-5/8"

54-1/2"

75, 100, 

125

1540mm

2148mm

2499mm

3105mm

618mm

150, 175

1540mm

2148mm

2638mm

3248mm

757mm

200, 225

1540mm

2148mm

2778mm

3388mm

897mm

250, 300

1540mm

2148mm

2988mm

3597mm

1106mm

350

1540mm

2148mm

3127mm

3737mm

1246mm

400

1540mm

2148mm

3267mm

3877mm

1384mm

M

o

del Series

 CRGB

 

a

nd RP

B Sizes

Содержание CRGB Series

Страница 1: ...AquaSaver Timer Adjustment 34 Belts 24 Blocked Vent Switch 25 Blower Motors 24 Blower Rotation 24 Burner Air Adjustment 30 Burner Rack Removal 42 Burners 29 Carryover System 29 Check Installation and...

Страница 2: ...rhalogenatedhydrocarbonsorany contaminant silicone aluminium oxide etc that adheres to the spark ignition flame sensing probe b Wiring is not in accordance with the diagram furnished with the heater c...

Страница 3: ...x 19 1 2 495mm Return Air Openings with Optional Cabinet X Hanger Centerline Standard and Optional Blower Cabinet Dimensions inches andmm Gravity Vented Indoor Models XE HXE Gas Connection Natural Pr...

Страница 4: ...side the downturn plenum cabinet For dimensions with downturn plenum cabinet with a cooling coil cabinet see page 6 FIGURE1B Dimensions Outdoor Gravity VentedModel Series CRGB Vent Cap Gas Connection...

Страница 5: ...ottom of cabinet side If system has a cooling coil cabinet add length dimension on page 6 for full system length The two position discharge dampers in Option AQ8 fit in the discharge air opening The d...

Страница 6: ...ownturnPlenumCabinet factoryattachedto either type of Cooling Coil Cabinet Front View DX Coil Cabinet with Horizontal Discharge Option AU3 Liquid Line Connections 7 8 or 1 3 8 5 1 8 130 8 203 3 4 19 3...

Страница 7: ...r from inside the building openings 1 square inch free area per 1000 BTUH Never less than 100 square inches free area for each open ing See 1 in FIGURE 2 2 Air from outside through duct openings 1 squ...

Страница 8: ...the pipe hanger to a 1 threaded pipe See the suspension method on the left in FIGURE 4 As an alternative method the factory installed pipe hanger may be removed and the heater suspended as illustrated...

Страница 9: ...lled 1 Position curb cross rails and curb side rails as illustrated in FIGURE 8 page 10 If there are two side pieces to a side fasten them with splice plates and hardware as illustrated in the splicin...

Страница 10: ...e is horizontal If the system has an AU11 AU12 AU13 AU14 cooling coil cabinet there is a downturn plenum with vertical discharge Options AU2 AU3 AU11 AU12 AU13 and AU14 are not factory installed Optio...

Страница 11: ...should be supported every six feet 1 8M using a non combustible material such as strap steel or chain Do not rely on the drafthood or heater for support of either horizontal or vertical vent pipe 6 V...

Страница 12: ...re horizontal venting is required or where negative building pressure inhibits gravity venting in stall an optional power venter Option CA Use only a power venter provided by the furnace manufacturer...

Страница 13: ...mmended size is 1 2 x1 2 20 gauge FIGURE11B InstallationoftheVentCap includedinthe optionpackage andthefield suppliedPipingandSupports Oval Adapter Assy PN 103025 Venter Seal Plate P N 43446 9 Condens...

Страница 14: ...air duct should come in con tact with masonry walls Insulate around all air duct through ma sonry walls with not less than 1 2 1 is recommended of insula tion Through Unheated Space Insulate all expo...

Страница 15: ...l connections are made disconnect the pilot supply at the control valve and bleed the system of air Reconnect the pilot line and leak test all connections by brushing on a soap solution WARNING All co...

Страница 16: ...ding MUST be made in accordance with the National Electric CodeANSI NFPANo 70 latest edition or in Canada the Canadian Electrical Code Part I C S A Standard C22 1 In addition the installer should be a...

Страница 17: ...ontrols available as part of the gas and air control options Check the wiring diagram and literature supplied with the unit for operation of factory installed optional controls See FIGURE 19 for locat...

Страница 18: ...ND BLOWER MOTOR BRANCH CIRCUIT WIRE SHOULD BE SIZED TO TEMPERATURE RATING OF AT LEAST 105 C EXCEPT FOR MUST BE REPLACED IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A 4 CAUTION IF ANY OF THE ORIGIN...

Страница 19: ...W LEADS CAP RED 8 USE 18 GA WIRE FOR 24 VOLT CONTROL WIRING ON UNIT NONE NOTES 4 CAUTION IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED IT MUST BE REPLACED WITH WIRING MAT...

Страница 20: ...L WIRE AS SUPPLIED WITH THE APPLIANCE 3 DOTTED WIRING AND THE FOLLOWING CONTROLS ARE SUPPLIED AND INSTALLED 2 THE FOLLOWING CONTROLS ARE SUPPLIED AS OPTIONAL EQUIPMENT 1 THE FOLLOWING CONTROLS ARE SUP...

Страница 21: ...N IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE 3 DOTTED WIRING AND THE FOLLOWING CONTROLS ARE SUPPLIED AND INSTALLED 2 THE FOLLOWING CONTROLS ARE SUPPLIED AS OPTIONAL EQUIPMENT 1 THE FOL...

Страница 22: ...E SAFETY SWITCH PORTION OF THE CONTROL THE SWITCH ACTION PROVES THE PRESENCE OF THE PILOT FLAME AND ENERGIZED THE A PILOT FLAME ON EACH OPERATING CYCLE THE SENSING PROBE ENERGIZING THE PILOT GAS VALVE...

Страница 23: ...ND ENERGIZES THE MAIN VALVE THE MAIN GAS IGNITES AND THE UNIT FIRES AT LOW RATE 3 ON A CALL FOR HEAT BY THE HIGH STAGE OF THERMOSTAT THE UNIT FIRES AT FULL RATE 4 IF THE FLAME IS EXTINGUISHED DURING M...

Страница 24: ...outlet temperature turn the adjustable half of the pulley outward One turn of the pulley will change the speed 8 10 5 Tighten the setscrew on the flat portion of the pulley shaft 6 Replace the belt an...

Страница 25: ...ing pressure levels off If a restriction or excessive flue length or turns cause the sensing pres sure to become less than the switch setpoint the pressure switch will function to shut off the main bu...

Страница 26: ...e same as the one illustrated 1 Remove the access panel in the ductwork adjacent to the control compartment access panel 2 Element is retained by spring clips 3 Round gasket and metal retaining plate...

Страница 27: ...IGURE24 Signal Conditioner used in Options AG21 and AG40 Carryover Regulator Modulating Valve Single Stage Gas PrimaryGas FlowPressure Switch WhiteLabel 1 1 w c GasFlow PressureSwitch WhiteLabel 1 1 w...

Страница 28: ...per open Is there voltage between Terminal 88 and Terminal 7 Is there voltage between Terminal 4 on ignition permissive relay and Terminal 7 Replace 1 time delay relay Replace ignition permissive rela...

Страница 29: ...6 38mm 79 23 32 18 25mm 7 16 1 16 11mm 1 6 Option AH2 and spark pilot with lockout is Option AH3 NOTE Outdoor units in Canada using propane require lockout Indoor units in U S and Canada using propane...

Страница 30: ...ers cont d INDOOR Gravity Vented Furnace Models XE HXE Natural gas burners are equipped with two flash carryover systems that receive a supply of gas simultaneously with the main burner NOTE A natural...

Страница 31: ...esuppliedwithairforcombustionasrequired by Code and in Paragraph 6A of this heater installation manual MAINTAIN THE VENT SYSTEM IN STRUCTURALLY SOUND AND PROPERLYOPERATINGCONDITION lockout control if...

Страница 32: ...3 Bottom Panel Position the air hood bottom panel so that it is to the inside of the two side panels and above the factory installed support angle Attach to the side panels If the bottom panel does n...

Страница 33: ...ecessary Follow these instructions to field connect the water supply and make neces sary checks and adjustments before operating the cooling module with a lock nut and a sealing gasket Check these fit...

Страница 34: ...ockwise to increase the ON time or counterclockwise to decrease the ON time One complete turn will adjust the cycle by 12 to 14 seconds All Modules Check the reservoir for any water leaks The reservoi...

Страница 35: ...e the water feed line from the downstream side of the ball valve and unscrew the water bleed line barbed hose fitting 3 Force a fresh water supply through the water inlet hose and thoroughly flush the...

Страница 36: ...let DamperOptionsonIndoor ModelsXE HXE FIGURE 41B Location of Controls for30 OutsideAirHood andDamperOptions AR6orAR7 OutdoorModelsonly FIGURE41D Exampleof OutsideAirand Return Air Damper Linkage Damp...

Страница 37: ...w c Heater Filter Size Metal Fillers Size A B C D E F1 F2 75 100 125 20x20 20x20 150 175 20x25 20x25 13 16 13 16 200 225 16x25 16x20 16x25 16x20 250 300 20x25 20x20 20x25 20x20 350 20x25 20x25 20x25...

Страница 38: ...B D D E 25 635mm 20 508mm 20 508mm 25 635mm Size 350 D D D C C Size 400 25 635mm 20 508mm B D Key Filter Code Filter Size A 16 x 20 B 20 x 20 C 16 x 25 D 20 x 25 E 25 x 25 Shaded areas are filter blo...

Страница 39: ...d with op tional discharge dampers the damper motor wires must be connected to the terminal blocks in the furnace electrical compartment If the coil cabinet being installed does not include a downturn...

Страница 40: ...ection remove the center hole plug FIGURE 46H To install side and top fillerpanels remove screws from top corners of both cabinets and the entire row across the cooling coil cabinet Removerowofscrews...

Страница 41: ...or lint accumulation Clean as needed Check the vent system for soundness Replace any parts that do not appear sound Check the wiring for any damaged wire Replace damaged wiring See Paragraph 12 for re...

Страница 42: ...ryover systems with air pressure 40 Cleaning the Heat Exchanger To clean the outer surfaces circulating air side of the heat exchanger gain access by removing the inspection panels in the ductwork or...

Страница 43: ...causes 8 Reset lockout by interrupting control at thermostat 9 Faulty combustion air proving switch 9 Replace combustion air proving switch 10 Activated blocked vent switch indoor system 10 Correct ve...

Страница 44: ...AG39 or AG40 see page 28 For replacement parts refer to Form P X XE for indoor units or Form P RG RP RBL for outdoor units Problem Probable Cause Remedy Pump does not run Unit is 1 Electrical connecti...

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