Operating instructions

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355BAV

Direct--Vent Upflow

Variable--Capacity Condensing Gas Furnace

For Sizes 060--120, Series C

Installation, Start--Up and

Operating Instructions

Visit www.Bryant.com

NOTE: Read the entire instruction manual before starting the installation.

NOTE: This furnace can be installed as a

(2-pipe) direct vent or as an optional ventilated combustion air application.

NOTE: Special Venting Requirements for Installations in Canada

Installation in Canada must conform to the requirements of CSA

B149 code. Vent systems must be composed of pipe, fittings,

cements, and primers listed to ULC S636. The special vent fittings

and accessory concentric vent termination kits and accessory

external drain trap have been certified to ULC S636 for use with

those IPEX PVC vent components which have been certified to

this standard. In Canada, the primer and cement must be of the

same manufacturer as the vent system -- IPEX System 636,

PVC/CPVC Primer, Purple Violet for Flue Gas Venting and IPEX

System 636

(1)

t, PVC Cement for Flue Gas Venting, rated Class

IIA, 65 deg C. must be used with this venting system -- do not mix

primers and cements from one manufacturer with a vent system

from a different manufacturer. Follow the manufacturer’s

instructions in the use of primer and cement and never use primer

or cement beyond its expiration date.

The safe operation, as defined by ULC S636, of the vent system is

based on following these installation instructions, the vent system

manufacturer’s installation instructions, and proper use of primer

and cement. All fire stop and roof flashing used with this system

must be UL listed material. Acceptability under Canadian standard

CSA B149 is dependent upon full compliance with all installation

instructions. Under this standard, it is recommended that the vent

system be checked once a year by qualified service personnel.

The authority having jurisdiction (gas inspection authority,

municipal building department, fire department, etc) should be

consulted before installation to determine the need to obtain a

permit.

Consignes spéciales pour l’installation de ventillation au Canada

L’installation faite au Canada doit se conformer aux exigences du

code CSA B149. Ce systême de ventillation doit se composer de

tuyaux, raccords, ciments et apprêts conformes au ULC S636. La

tuyauterie de ventillation des gaz, ses accessoires, le terminal

concentrique mural ainsi que l’ensemble du drain de condensat

extérieur ont été certifiés ULCS 636 pour l’application des

composantes IPEX PVC qui sont certifiées à ce standard. Au

Canada l’apprêt et le ciment doivent être du même manufacturier

que le systême de ventillation -- IPEX Système 636, Apprêt

PVC/CPVC. Mauve Violette pour conduit en évacuation des gaz et

IPEX Système 636

(1)

t, ciment pour PVC pour conduit en

évacuation des gaz, évalué CLASSE IIA, 65 deg. C. doit ëtre

utilisé avec ce systèeme d’évacuation -- ne pas mélanger l’apprêt et

le ciment d’un manufacturier avec le systême de ventillation d’un

autre manufacturier. Bien suivre les indications du manufacturier

lors de l’utilisation de l’apprêt et du ciment et ne pas utiliser

ceux--ci si la date d’expiration est atteinte.

L’opération sécuritaire, tel que définit par ULC S636, du système

de ventilation est basé sur les instructions d’installation suivantes,

ainsi que l’usage approprié de l’apprêt et ciment. Tout arrët feu et

solin de toit utilisés avec ce système doivent être des matériaux

listés UL. L’acceptation du standard Canadien CSA B419 est

directement relié à l’installation conforme aux instructions ci-- haut

mentionnées. Le standard Canadien recommande l’ inspection par

un personel qualifié et ce, une fois par année.

Les autoritées ayant juridiction (inspecteurs de gas, inspecteurs en

bâtiments, département des incendies, etc) devraient être consultées

avant l’installation afin de déterminer si un permis est requis.

(1) System 636 is a trademark of IPEX Inc.

Summary of content (52 pages)

PAGE 1
355BAV Direct--Vent Upflow Variable--Capacity Condensing Gas Furnace For Sizes 060--120, Series C Installation, Start--Up and Operating Instructions Visit www.Bryant.com NOTE: Read the entire instruction manual before starting the installation. NOTE: This furnace can be installed as a (2-pipe) direct vent or as an optional ventilated combustion air application.
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TABLE OF CONTENTS PAGE REQUIRED NOTICE FOR MASSACHUSETTS INSTALLATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ama SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 4 DIMENSIONAL DRAWING . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Clearances to Combustibles . . . . . . . . . . . . . . . . . . . . . . . . . 6 CERTIFIED ISO 9001:2000 CODES AND STANDARDS . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Required Notice for Massachusetts Installations For questions regarding these requirements, please contact the Commonwealth of Massachusetts Board of State Examiners of Plumbers and Gas Fitters, 239 Causeway Street, Boston, MA 02114. 617--727--9952. 3 355BAV IMPORTANT The Commonwealth of Massachusetts requires compliance with regulation 248 CMR as follows: 5.08: Modifications to NFPA--54, Chapter 10 2) Revise 10.8.3 by adding the following additional requirements: a.
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SAFETY CONSIDERATIONS ! CAUTION FURNACE RELIABILITY HAZARD Improper installation or misapplication of furnace may require excessive servicing or cause premature component failure. Understand the signal words DANGER, WARNING, and CAUTION. These words are used with the safety--alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies a hazard which could result in personal injury or death.
PAGE 5
26 15⁄16" (684 mm) 26 1⁄4" (667 mm) (14 mm) A 22 5⁄16" (567 mm) 13/16" (21 mm) CONDENSATE DRAIN TRAP LOCATION (DOWNFLOW & HORIZONTAL LEFT) OUTLET DIA (22mm) POWER CONN DIA GAS CONN . 2-IN (51mm) VENT CONN 30 13⁄16" (783 mm) 1⁄2-IN. DIA (13mm) THERMOSTAT ENTRY 22 11⁄16" (576 mm) 14 1⁄2" TYP (368 mm) SIDE INLET 11⁄4" (32 mm) 1" (25mm) (591 mm) 23 1⁄4" TYP SIDE INLET 29 11⁄16" TYP (754 mm) 7⁄8-IN.
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355BAV (LIT. TOP) A09681 Fig. 3 -- Clearance to Combustibles If this furnace is installed with a direct--vent (combustion air and flue) system, a factory accessory termination kit must be installed. In a direct--vent system, all air for combustion is taken directly from the outside atmosphere and all flue products are discharged to the outside atmosphere. See furnace and factory accessory termination kit instructions for proper installation.
PAGE 7
General Installation 60 (27º C) (16º C) A05004 Fig. 4 -- Return--Air Temperature S US: NFGC and the NFPA 90B. For copies, contact the National Fire Protection Association Inc., Batterymarch Park, Quincy, MA 02269; or for only the NFGC contact the American Gas Association, 400 N. Capitol, N.W., Washington DC 20001 S CANADA: NSCNGPIC. For a copy, contact Standard Sales, CSA International, 178 Rexdale Boulevard, Etobicoke (Toronto), Ontario, M9W 1R3, Canada.
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ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ! ! MINOR PROPERTY DAMAGE CAUTION Failure to follow this caution may result in minor property damage. UNIT DAMAGE HAZARD Local codes may require a drain pan under entire furnace and condensate trap when a condensing furnace is used in an attic application or over a finished ceiling. Failure to follow this caution may result in damage to unit components. 355BAV Electrostatic discharge can affect electronic components.
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BLOWER SHELF FURNACE DOOR CONDENSATE TRAP CONDENSATE TRAP (INSIDE) FURNACE SIDE 4 78 (124 mm) 26 1 4 (667 mm) FIELD DRAIN CONN ALTERNATE DRAIN TUBE LOCATION SIDE VIEW CONDENSATE TRAP DRAIN TUBE LOCATION FACTORY-SHIPPED LOCATION 11 2 (38 mm) FRONT VIEW 355BAV ALTERNATE LOCATION (6 mm) OD COLLECTOR BOX TO TRAP RELIEF PORT 1/4 1 1 2 (38 mm) (13 mm) OD INDUCER HOUSING DRAIN CONNECTION 1/2 3 4 (19 mm) (16 mm) OD COLLECTOR BOX DRAIN CONNECTION 5/8 (180 mm) 7 1 8 SCREW HOLE FOR UPFLOW APPL
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CAP CAP COLLECTOR BOX TUBE (PINK) PLUG COLLECTOR BOX TUBE (PINK) PLUG COLLECTOR BOX TUBE (GREEN) INDUCER HOUSING (MOLDED) DRAIN TUBE (BEHIND COLLECTOR BOX DRAIN TUBE) COLLECTOR BOX DRAIN TUBE (BLUE) 355BAV COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX DRAIN TUBE (GREEN) CONDENSATE TRAP CONDENSATE TRAP FIELD-INSTALLED FACTORY-SUPPLIED DRAIN TUBE COUPLING (LEFT DRAIN OPTION) INDUCER HOUSING DRAIN TUBE (VIOLET) FIELD-INSTALLED FACTORY-SUPPLIED DRAIN TUBE FIELD-INSTALLED FACTORY-SUPPLIED 1/2-IN.
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! CAUTION UNIT DAMAGE HAZARD --The furnace is permanently installed with all electrical wiring, piping, air filters, venting and ducting installed according to these installation instructions. A return air duct is provided, sealed to the furnace casing, and terminated outside the space containing the furnace. This prevents a negative pressure condition as created by the circulating air blower, causing a flame rollout and/or drawing combustion products into the structure.
PAGE 12
5/ 16″ (8mm) (8mm) 5/ 16″ 1 3/4″ (44mm) 1 3/4″ (44mm) (8mm) 5/16″ (8mm) 5/ 16″ 355BAV (44mm) 1 3/ 4″ 3/ (44mm) 1 4″ A89014 A07911 Fig. 12 -- Leveling Legs Fig. 11 -- Freeze Protection ! CAUTION Hazardous Locations ! UNIT DAMAGE HAZARD FIRE, EXPLOSION, INJURY OR DEATH HAZARD Failure to follow this caution may result in minor property or unit damage. Improper location or inadequate protection could result in fire or explosion.
PAGE 13
that the heat exchanger can be viewed for possible openings using light assistance or a probe can be inserted for sampling the air stream. The cover attachment shall prevent leaks. Ductwork Acoustical Treatment Metal duct systems that do not have a 90 degree elbow and 10 ft. (3.0 M) of main duct to the first branch take--off may require internal acoustical lining.
PAGE 14
WASHABLE FILTER 171⁄2-IN. (444mm) WIDE CASINGS ONLY: INSTALL FIELD-SUPPLIED FILTER FILLER STRIP UNDER FILTER. FILTER RETAINER 21-IN. (533mm) WIDE CASINGS ONLY: SUPPORT RODS (3) EXTEND 1/4" (6mm) ON EACH SIDE OF FILTER AND REST ON CASING FLANGE 3″ (76mm) 24 1/2″ (533mm) 1″ (25.4mm) A93045 355BAV Fig. 14 -- Filter Installed for Side Inlet CAUTION ! CUT HAZARD WASHABLE FILTER Failure to follow this caution may result in minor personal injury.
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! WARNING FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in fire, explosion, personal injury, or death. -- Connect gas pipe to furnace using a backup wrench to avoid damaging gas controls. -- Gas valve shutoff switch MUST be facing forward or tilted upward. -- Never purge a gas line into a combustion chamber. Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to check all connections.
PAGE 16
Table 3 – Maximum Capacity of Pipe* NOMINAL IRON PIPE SIZE IN. (MM) INTERNAL DIA. IN. (MM) 1/2 (13) 3/4 (19) 1 (25) 1-1/4 (32) 1-1/2 (38) ! LENGTH OF PIPE --- FT (M) 10 (3.0) 20 (6.0) 30 (9.1) 40 (12.1) 50 (15.2) 0.622 (158) 175 120 97 82 73 0.824 (21) 1.049 (27) 1.380 (35) 1.610 (41) 360 680 1400 2100 250 465 950 1460 200 375 770 1180 170 320 660 990 151 285 580 900 355BAV *Cubic ft of gas per hr for gas pressures of 0.5 psig (14 ---in. wc) or less, and a pressure drop of 0.5 ---in.
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FIELD 24-V WIRING FIELD 115-, 208/230-, 460-V WIRING FACTORY 24-V WIRING FACTORY 115-, 208/230-, 460-V WIRING NOTE 5 W FIVE WIRE C R G Y THERMOSTAT TERMINALS FIELD-SUPPLIED DISCONNECT THREE-WIRE HEATING ONLY 208/230- OR 460-V THREE PHASE W/W1 W2 R GND NOTE 3 GND 208/230-V SINGLE PHASE G AUXILIARY 115-V FIELD-SUPPLIED J-BOX DISCONNECT SWITCH C CONDENSING UNIT TWO WIRE 24-V TERMINAL BLOCK FURNACE CONTROL CENTER GND GND NOTE 1 Y/Y2 355BAV 115-V SINGLE PHASE NOTES: 1.
PAGE 18
Factory Installed J-- Box Location 5. Replace main furnace door and blower access panel. Install power entry hole filler plugs (factory--supplied in loose parts bag) in unused power entry holes. (See Fig. 21.) FACTORY INSTALLED LOCATION POWER ENTRY HOLE FILLER PLUG (FACTORYSUPPLIED LOOSE PARTS BAG) UNUSED 7/8-IN. (22 mm) DIAMETER POWER ENTRY HOLES A05113 Fig. 21 -- Factory Installed J--Box Location 355BAV J-- Box Relocation 1. Remove 2 screws holding auxiliary J--box. (See Fig. 22.) 2.
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355BAV A09683 Fig.
PAGE 20
! CAUTION ! UNIT DAMAGE HAZARD CARBON MONOXIDE POISONING HAZARD Failure to follow this caution may result in unit component damage. Failure to follow the steps outlined below for each appliance connected to the venting system being placed into operation could result in carbon monoxide poisoning or death. DO NOT connect furnace control HUM terminal to HUM (humidifier) terminal on Thermidistatt, Zone Controller or similar device.
PAGE 21
Table 5 – Approved Combustion--Air and Vent Pipe, Fitting and Cement Materials (U.S.
PAGE 22
355BAV 9. Wipe excess cement from joint. A continuous bead of cement will be visible around perimeter of a properly made joint. 10. Handle pipe joints carefully until cement sets. 11. Horizontal portions of the venting system shall be supported to prevent sagging. Support combustion air piping (if applicable) and vent piping a minimum of every 5 ft. (1.5 M) (3 ft. (0.9 M) for SDR--21 or --26 PVC) using perforated metal hanging strap. 12.
PAGE 23
COMBUSTION AIR INTAKE HOUSING 3/8" (10 mm) ID TUBE BURNER BOX 3/16" DRILL TRAP COMBUSTION AIR PIPE 4″ (102 mm) MIN TO OPEN DRAIN A93035 Fig. 26 -- Intake Housing Plug Fitting Drain Ventilated Combustion Air intake pipe Vent through roof flashing 12˝ (305 mm) A plugged drain connection has been provided on this fitting for use when moisture is found in combustion air intake pipe and combustion box. If use of this drain connection is desired, drill out fitting’s tap plug with 3/16 in. (5 mm).
PAGE 24
This furnace requires OUTDOOR AIR for combustion. ! WARNING CARBON MONOXIDE POISONING HAZARD The operation of exhaust fans, kitchen ventilation fans, clothes dryers, attic exhaust fans or fireplaces could create a NEGATIVE PRESSURE CONDITION at the furnace. Make--up air MUST be provided for the ventilation devices, in addition to that required by the furnace.
PAGE 25
Vent Pipe ! WARNING CARBON MONOXIDE POISONING AND PROPERTY DAMAGE HAZARD Failure to follow this warning could result in property damage, personal injury, or death. Vent pipes must be airtight. NOTE: A 2--in. (51 mm) diameter pipe must be used within the furnace casing. Make all pipe diameter transitions outside furnace casing per Fig. 24. The minimum vent pipe length for these furnaces is 5 ft. (1.5 M). Short pipe lengths (5--8 ft. (1.5--2.4 M)) may discharge condensate droplets.
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COMBUSTION-AIR PIPE VENT PIPE COMBUSTION-AIR PIPE 12-IN. MIN (305 mm) 12-IN. MIN (305 mm) VENT PIPE VERTICAL TO ROOF VERTICAL TO SIDEWALL NOTE: A 12 In. (305 mm) minimum offset pipe section is recommended with short (5 to 8 ft / 1.5 to 2.4 M) vent systems. This recommendation is to reduce excessive condensate 355BAV A06356 Fig. 30 -- Short Vent (5 to 8 Ft. / 1.5 to 2.4 M) System Roof Te rmination (Preferred) At least 36 in.
PAGE 27
Roof Termination (Preferred) Vent Maintain 12 in (305mm) . minimum clearance above highest anticipated snow level maximum of 24 in. (610mm) above. roof Abandoned masonry used as raceway (per code) 12 in. min. (305 mm)from overhang or roof 6 in. (152mm) minimum clearance between wall and end of vent pipe. 10 in. (254mm) maximum pipe length Maintain 12 in. (305mm) minimum clearance above highest anticipated snow level or grade whichever is greater 355BAV 12 in. (305 mm) min.
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Table 6 – Vent Termination Kit for Direct Vent/2--Pipe System DIRECT VENT (2 PIPE) TERMINATION KIT TERMINATION SYSTEM 2--- in. (51 mm) Concentric Vent Kit Single Penetration of Wall or Roof 3--- in. (76 mm) Concentric Vent Kit 2--- in. (51 mm)Termination Bracket Kit 3--- in. (76 mm) Termination Bracket Kit Single Penetration of Wall or Roof 2Pipe Termination System 2Pipe Termination System DIAMETER OF COMBUSTION AIR AND VENT PIPES --- IN.
PAGE 29
MODEL PLUG CONNECTOR FACTORY TEST CONNECTOR CONTINUOUS FAN (CF) AIRFLOW SETUP SWITCHES SW1 SETUP SWITCHES AND BLOWER OFFDELAY AIR CONDITIONING (A/C) AIRFLOW SETUP SWITCHES HUMIDIFIER TERMINAL (24-VAC 0.5 AMP MAX. ACRDJ AIR CONDITIONING RELAY DISABLE JUMPER 355BAV 24-V THERMOSTAT TERMINALS DATE CODE XXXXN STATUS AND COMM LED LIGHTS 3-AMP FUSE TRANSFORMER 24-VAC CONNECTIONS PL3 ECM BLOWER HARNESS CONNECTOR EAC-1 TERMINAL (115-VAC 1.0 AMP MAX.
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355BAV A05009 Fig.
PAGE 31
355BAV A05013 Fig.
PAGE 32
Table 8 – Maximum Allowable Pipe Length -- Ft. (M) ALTITUDE FT. (M) 0 to 2000 (0 to 610) 355BAV ALTITUDE 2001 to 3000 (610 to 914) ALTITUDE UNIT SIZE (BTUH) 60,000 2 Pipe or 2 ---In. (51) Concentric 80,000 2 Pipe or 2 ---In. (51) Concentric 100,000 2 Pipe or 2 ---In. (51) Concentric 120,000 2 Pipe or 3 ---In. (76) Concentric UNIT SIZE (BTUH) ALTITUDE 4001 to 5000‡ (1219 to 1524) ALTITUDE 5001 to 6000‡ (1524 to 1829) Termination Type 60,000 2 Pipe or 2 ---In.
PAGE 33
Table 8 — Maximum Allowable Pipe Length -- Ft./M) (Continued) Variable Speed Vent Sizing Table 6001 to 7000‡ (1829 to 2134) ALTITUDE 7001 to 8000‡ (2134 to 2438) ALTITUDE 8001 to 9000 Ft.‡ (2438 to 2743) ALTITUDE 9001 to 10000 ‡ (2743 to 3048) UNIT SIZE (BTUH) Termination Type 60,000 2 Pipe or 2 ---In. (51) Concentric 80,000 2 Pipe or 2 ---In. (51) Concentric 100,000 2 Pipe or 2 ---In. (51) Concentric 120,000 2 Pipe or 3 ---In.
PAGE 34
Outdoor draining of the furnace is permissible if allowed by local codes. Caution should be taken when freezing ambient may freeze drain pipe and prohibit draining. ! CAUTION UNIT MAY NOT OPERATE Failure to follow this caution may result in intermittent unit operation. 355BAV Unit must not be installed, operated, and then turned and left off in an unoccupied structure during cold weather when temperature drops to 32_F or below unless drain trap and drain line have adequate freeze protection.
PAGE 35
1. 2. 3. 4. Remove main furnace door and blower access panel. Locate A/C setup switches on furnace control. (See Fig. 33.) Determine air conditioning tonnage used. Use wiring schematic to determine proper setup position of A/C switches. (See Fig. 23 and 39.) NOTE: Excessive airflow caused by improper A/C switch setup may cause condensate blowoff in cooling mode. 5. Replace main furnace door and blower access panel. NOTE: EAC--1 terminal is energized whenever blower operates.
PAGE 36
AIR CONDITIONING TONS (12,000 BTU/HR) AIRFLOW* (CFM) 060 & 080-14 MODEL 080-20 & 100 MODEL 120 MODEL 1-1/2 525 (600) 2 700 (800) X X X X 2-1/2 875 (1000) X X X 3 1050 (1200) X X X 3-1/2 1225 (1400) X X X 4 1400 (1600) X X 5 1750 (2000) X X 6 2100 (2100) X X-INDICATES AN ALLOWABLE SELECTION.
PAGE 37
The blower door must be installed for power to be conducted through the blower door interlock switch ILK to the furnace control CPU, transformer TRAN, inducer motor IDM, blower motor BLWM, hot--surface igniter HSI, and gas valve GV. A04001 Fig. 40 -- Example of Setup Switch in Off Position 5. Remove funnel and tube from inducer housing and replace drain connection cap and clamp. Purge Gas Lines If not previously done, purge the lines after all connections have been made and check for leaks.
PAGE 38
Table 10 – Blower Off Delay Setup Switch Position 355BAV DESIRED HEATING MODE BLOWER OFF DELAY (SEC) 90 120 150 180 A06456 Fig. 41 -- Inducer Housing Drain Tube A06457 Fig. 42 -- Filling Condensate Trap SETUP SWITCH (SW1---7 AND SW1---8) POSITION SW1--- 7 SW1--- 8 OFF ON OFF ON OFF OFF ON ON 1. Inducer Prepurge Period--The furnace control CPU turns on inducer motor IDM and slowly increases the inducer motor speed.
PAGE 39
TWO-- STAGE THERMOSTAT AND TWO-- STAGE HEATING See Fig. 49 for thermostat connections. NOTE: In this mode, the low--heat only switch SW1--2 must be ON to select the low--heat only operation mode in response to closing the thermostat R--to--W1 circuit. Closing the thermostat R--to--W1--and--W2 circuits always causes high--heat operation, regardless of the setting of the low--heat--only switch.
PAGE 40
355BAV High--cooling airflow is based on the A/C selection shown in Fig. 39. NOTE: When transitioning from low--cooling to high--cooling the outdoor unit compressor will shut down for 1 minute while the furnace blower motor BLWM transitions to run at high--cooling airflow. The electronic air cleaner terminal EAC--1 is energized with 115 vac whenever the blower motor BLWM is operating. When the thermostat is satisfied, the R to G--and--Y circuit are opened.
PAGE 41
355BAV A00275 A00277 Fig. 43 -- Two--Stage Furnace with Single--Speed Air Conditioner Fig. 45 -- Two--Stage Furnace with Single--Speed Heat Pump (Dual Fuel) A00276 A00278 Fig. 44 -- Two--Stage Furnace with Two--Speed Air Conditioner Fig.
PAGE 42
355BAV A00279 A00281 Fig. 47 -- Dual Fuel Thermostat with Two--Stage Furnace and Single--Speed Heat Pump Fig. 49 -- Two--Stage Thermostat With Two--Stage Furnace and Two--Speed Air Conditioner See note 2 A00280 A02348 Fig. 48 -- Dual Fuel Thermostat With Two--Stage Furnace and Two--Speed Heat Pump Fig.
PAGE 43
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. Heat pump MUST have a high pressure switch for dual fuel applications. Refer to outdoor equipment Installation Instructions for additional information and setup procedure. Select the “ZONE” position on the two--speed heat pump control. Outdoor Air Temperature Sensor must be attached in all dual fuel applications. Dip switch No.1 on Thermidistat should be set in OFF position for air conditioner installations. This is factory default. Dip switch No.
PAGE 44
CONTINUOUS BLOWER SPEED SELECTION FROM THERMOSTAT To select different continuous--blower speeds from the room thermostat, momentarily turn off the FAN switch or push button on the room thermostat for 1--3 seconds after the blower motor BLWM is operating. The furnace control CPU will shift the continuous--blower airflow from the factory setting to the next highest CF selection airflow as shown in Fig. 39.
PAGE 45
355BAV Table 11 – Orifice Size* and Manifold Pressures for Gas Input Rate (Tabulated Data Based on 20,000 Btuh High--Heat/13,000 Btuh Low--Heat Per Burner, Derated 2%/1,000 Ft.
PAGE 46
355BAV Table 11 — Orifice Size* and Manifold Pressures for Gas Input Rate (Tabulated Data Based on 20,000 Btuh High--Heat/13,000 Btuh Low--Heat Per Burner, Derated 2%/1,000 Ft.
PAGE 47
REGULATOR COVER SCREW PLASTIC ADJUST SCREW ON/OFF SWITCH REGULATOR SPRING 1/2˝ NPT INLET HIGH STAGE GAS PRESSURE REGULATOR ADJUSTMENT LOW STAGE GAS PRESSURE REGULATOR ADJUSTMENT INLET PRESSURE TAP BURNER ORIFICE MANIFOLD PRESSURE TAP 1/2˝ NPT OUTLET A04167 A93059 ! CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in reduced furnace life, property damage, personal injury, and death. DO NOT bottom out gas valve regulator adjusting screw.
PAGE 48
Table 12 – Altitude Derate Multiplier for U.S.A. ALTITUDE --- FT (M) 0–2000(0---610) 2001–3000 (610---914) 3001–4000 (914---1219) 4001–5000 (1219---1524) 5001–6000 1524---1829) 6001–7000 (1829---2134) 7001–8000 (2134---2438) 8001–9000 (2438---2743) 9001–10,000 (2743---3048) PERCENT OF DERATE 0 4--- 6 6--- 8 8--- 10 10--- 12 12--- 14 14--- 16 16--- 18 18--- 20 355BAV * Derate multiplier factors are based on midpoint altitude for altitude range. h. Jumper R to W/W1. i.
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1 cu ft 360 327 300 277 257 240 225 212 200 189 180 171 164 157 150 144 138 133 129 124 120 116 113 109 106 103 100 97 95 92 90 88 86 84 82 80 78 76 75 73 SIZE OF TEST DIAL 2 cu ft 720 655 600 555 514 480 450 424 400 379 360 343 327 313 300 288 277 267 257 248 240 232 225 218 212 206 200 195 189 185 180 176 172 167 164 160 157 153 150 147 SECONDS FOR 1 REVOLUTION 50 51 52 53 54 55 56 57 58 59 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 116 120 5 cu ft 1800 1636
PAGE 50
4. Set thermostat to “call for heat.” When pressure switches are functioning properly, status code 42 will flash on furnace control approximately 20 sec after thermostat switch is closed. If either a status code 31 or 32 is flashed when inducer motor is disconnected, the furnace will shut itself down immediately. Determine the reason pressure switches did not function properly and correct the condition. 5. Turn off 115--v power to furnace. 6. Reconnect inducer motor wire harness.
PAGE 51
CHECKLIST — INSTALLATION LOAD CALCULATION Heating Load (Btuh) Cooling Load (Btuh) ________________ Condensate Drain Furnace Model Selection COMBUSTION AND VENT PIPING Termination Location ________________ Vent ________________ Roof ________________ ________________ ________________ Unit Level or Pitched Forward ________________ Internal Tubing Connections Free of Kinks and Traps ________________ External Drain Connection Leak Tight and Sloped ________________ Condensate Trap Primed before St
PAGE 52
355BAV E2010 Bryant Heating & Cooling Systems D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 08/10 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. 52 Catalog No.