Table of Contents
Advertisement
Quick Links
NOTE: Read the entire instruction manual before starting the
installation.
This symbol → indicates a change since the last issue.
Index
DIMENSIONAL DRAWING........................................................2
SAFETY CONSIDERATIONS .....................................................3
Clearances to Combustibles......................................................3
INTRODUCTION ..........................................................................4
APPLICATIONS ......................................................................4-11
General ......................................................................................4
Upflow Applications..............................................................4-6
Downflow Applications.........................................................6-8
Horizontal Left (Supply-Air Discharge) Applications .........8-9
LOCATION ............................................................................11-12
General...............................................................................11-12
Low-Fire Only Installation .....................................................12
Furnace Location Relative to Cooling Equipment ................12
Hazardous Locations...............................................................12
INSTALLATION....................................................................13-16
Leveling Legs (If Desired) .....................................................13
Installation On a Concrete Slab .............................................13
Applications)......................................................................13
Installation In Horizontal Applications ..................................14
Filter Arrangement..................................................................14
Bottom Closure Panel.............................................................14
Gas Piping..........................................................................14-16
ELECTRICAL CONNECTIONS...........................................16-19
115-v Wiring......................................................................17-19
24-v Wiring.............................................................................19
Accessories..............................................................................19
DIRECT VENTING ...............................................................19-29
Common Vent Systems................................................19-20
Combustion-Air and Vent Piping .....................................20-25
Kit Installation..............................................................25-27
Multiventing and Vent Terminations................................27-29
CONDENSATE DRAIN..............................................................29
General ....................................................................................29
Application ..............................................................................29
Condensate Drain Protection ..................................................29
installation, start-up,
and operating instructions
4-WAY MULTIPOISE
VARIABLE-CAPACITY
CONDENSING GAS FURNACE
A93040
Page
-1-
Cancels: II 355M-40-2
®
As an ENERGY STAR Partner, BDP Company has deter-
mined that this product meets the ENERGY STAR guidelines
for energy efficiency.
UPFLOW
HORIZONTAL
LEFT
DOWNFLOW
AIRFLOW
Fig. 1-Multipoise Orientations
SEQUENCE OF OPERATION..............................................30-32
Self-Test Mode........................................................................30
Heating Mode..........................................................................30
Heat Mode-Two Stage .........................................................30
Emergency Heat Mode......................................................30-31
Cooling Mode .........................................................................31
Heat Pump Mode...............................................................31-32
Continuous Fan Mode ............................................................32
Component Test ......................................................................32
Bypass Humidifier Mode........................................................32
Dehumidification Mode ..........................................................32
Zone Mode ..............................................................................32
START-UP PROCEDURES ..................................................32-37
General...............................................................................32-33
Select Setup Switch Positions ................................................33
Prime Condensate Trap With Water ......................................33
Purge Gas Lines ................................................................33-34
Adjustments .......................................................................34-37
Set Gas Input Rate ............................................................34-36
Set Temperature Rise..............................................................36
Set Thermostat Heat Anticipator............................................37
CHECK SAFETY CONTROLS ............................................37-38
Check Primary Limit Control.................................................37
Check Pressure Switch ......................................................37-38
CHECKLIST...........................................................................38-39
355MAV
Series C
II 355M-40-3
6-95
ama
A PP R O VED
R
AIRFLOW
HORIZONTAL
RIGHT
AIRFLOW
AIRFLOW
A93041
Advertisement
Table of Contents
Related Manuals for Bryant 355MAV C Series
Summary of Contents for Bryant 355MAV C Series
-
Page 1: Table Of Contents
installation, start-up, 355MAV and operating instructions Series C 4-WAY MULTIPOISE VARIABLE-CAPACITY CONDENSING GAS FURNACE Cancels: II 355M-40-2 II 355M-40-3 6-95 ® A PP R O VED As an ENERGY STAR Partner, BDP Company has deter- mined that this product meets the ENERGY STAR guidelines for energy efficiency. -
Page 2: Dimensional Drawing
—2—... -
Page 3: Safety Considerations
→ SAFETY CONSIDERATIONS ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS Installing and servicing heating equipment can be hazardous due to CAUTION: Electrostatic discharge can affect electronic gas and electrical components. Only trained and qualified person- components. Take precautions during furnace installation nel should install, repair, or service heating equipment. Untrained and servicing to protect the furnace electronic control. -
Page 4: Introduction
5. Use this procedure for installed and uninstalled (un- CAUTION: Application of this furnace should be in- grounded) furnaces. doors with special attention given to vent sizing and 6. Before removing a new control from its container, dis- material, gas input rate, air temperature rise, unit leveling, charge your body’s electrostatic charge to ground to protect and unit sizing. - Page 5 FURNACE BLOWER SHELF CONDENSATE DOOR TRAP FURNACE CONDENSATE DOOR FURNACE TRAP (INSIDE) FURNACE SIDE SIDE FIELD FIELD DRAIN DRAIN CONN CONN ALTERNATE DRAIN TUBE LOCATION SIDE VIEW FRONT VIEW END VIEW FRONT VIEW CONDENSATE TRAP DRAIN TUBE LOCATION HORIZONTAL DOWNFLOW AND ALTERNATE UPFLOW APPLICATIONS APPLICATIONS EXTERNAL UPFLOW APPLICATIONS...
-
Page 6: Downflow Applications
PLUG PLUG COLLECTOR BOX COLLECTOR BOX DRAIN TUBE (BLUE DRAIN TUBE (BLUE & WHITE STRIPED) & WHITE STRIPED) COLLECTOR BOX COLLECTOR BOX TUBE (PINK) TUBE (PINK) COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX INDUCER HOUSING DRAIN TUBE (GREEN) (MOLDED) DRAIN TUBE (BEHIND COLLECTOR BOX DRAIN TUBE) CONDENSATE... - Page 7 COLLECTOR BOX DRAIN TUBE (BLUE) COLLECTOR BOX PLUG TUBE (GREEN) PLUG COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX DRAIN TUBE (BLUE) COLLECTOR BOX COLLECTOR BOX TUBE (PINK) TUBE (PINK) COLLECTOR BOX DRAIN TUBE (BLUE COLLECTOR BOX & WHITE STRIPED) DRAIN TUBE (BLUE &...
-
Page 8: Horizontal Left (Supply-Air Discharge) Applications
(a.) Determine appropriate length and cut. 1. Disconnect collector box pressure tube (pink label) attached to pressure switch. (b.) Connect tube to condensate trap. 2. Use small diameter tube (factory-supplied in loose parts (c.) Clamp tube to prevent any condensate leakage. bag) to extend collector box pressure tube (green label) (2.) Condensate Trap Located on Right Side of Casing which was previously connected to condensate trap relief... -
Page 9: Horizontal Right (Supply-Air Discharge) Applications
NOTE: In Canada, installations shall be in accordance with NOTE: See Fig. 9 or tube routing label on main furnace door to current NSCNGPIC and/or local codes. check for proper connections. NOTE: The auxiliary junction box (J-box) MUST be relocated to E. - Page 10 COMBUSTION – AIR INTAKE VENT A 12-IN. MIN HORIZONTAL PIPE SECTION IS RECOMMENDED WITH SHORT (5 TO 8 FT) VENT SYSTEMS TO REDUCE EXCESSIVE CONDENSATE DROPLETS FROM ″ EXITING THE VENT PIPE. WORK AREA ″ ⁄ MANUAL SHUTOFF ACCESS OPENING GAS VALVE FOR TRAP DRAIN...
-
Page 11: Location
COLLECTOR BOX DRAIN TUBE (BLUE) COLLECTOR BOX TUBE (GREEN) PLUG COLLECTOR BOX TUBE (PINK) CONDENSATE TRAP COLLECTOR BOX DRAIN TUBE (BLUE AND WHITE STRIPED) INDUCER HOUSING DRAIN TUBE (VIOLET) COLLECTOR BOX EXTENSION TUBE A93354 Fig. 11—Horizontal Right Tube Configuration CAUTION: The condensate trap MUST be installed below furnace. -
Page 12: Low-Fire Only Installation
FRONT °F °F 32°F MINIMUM INSTALLED AMBIENT OR FREEZE PROTECTION REQUIRED RETURN MAX 85°F MIN 55°F A93042 NOTE: These furnaces are designed for a minimum continuous A93058 return-air temperature of 60°F or intermittent operation down to 55°F CAUTION: If these furnaces are installed in an uncon- such as when used with a night setback thermostat. -
Page 13: Installation
INSTALLATION I. LEVELING LEGS (IF DESIRED) When furnace is used in upflow position with side inlet(s), leveling legs may be desired. (See Fig. 12.) Install field-supplied, corrosion-resistant 5/16-in. machine bolts and nuts. ″ ⁄ ″ ⁄ HOLE IN ″ ⁄ FLOOR ″... -
Page 14: Installation In Horizontal Applications
Factory-supplied washable framed filters are shipped in blower compartment. Determine location for filter and relocate filter PERFORATED DISCHARGE DUCT retaining wire if necessary. See Table 1 to determine correct filter FLANGE size for desired filter location. Table 1 indicates filter size, location, and quantity shipped with this furnace. - Page 15 ⁄ -IN. ROD ANGLE ″ ⁄ IRON OR EQUIVALENT ALTERNATE SUPPORT LOCATION 4-IN. MIN 8-IN. MAX DRAIN (A) ROD LOCATION USING DIMPLE LOCATORS -IN. MAX (SEE DIMENSIONAL -IN. HEX NUT ALTERNATE SUPPORT DWG FOR & WASHER (4) LOCATION FROM BACK LOCATIONS) REQD PER ROD NOTES:...
-
Page 16: Electrical Connections
WARNING: Never purge a gas line into a combustion WARNING: Use proper length of pipe to avoid stress on chamber. Never use matches, candles, flame, or other gas control manifold. Failure to follow this warning could sources of ignition for purpose of checking leakage. Use result in a gas leak resulting in fire, explosion, personal a soap-and-water solution to check for leakage. -
Page 17: 115-V Wiring
FIELD 24-VOLT WIRING FIELD 115-, 208/230-, 460-VOLT WIRING FACTORY 24-VOLT WIRING FACTORY 115-, 208/230-, 460-VOLT WIRING NOTE 5 THERMOSTAT FIVE TERMINALS FIELD-SUPPLIED WIRE FUSED DISCONNECT THREE-WIRE 208/230- OR HEATING 460-VOLT ONLY THREE PHASE W/W1 115-VOLT NOTE SINGLE PHASE 208/230- VOLT SINGLE 115-VOLT FIELD- AUXILIARY... - Page 18 —18—...
-
Page 19: 24-V Wiring
size and fuse specifications. A disconnecting means must be (1.) Strip EAC power lead insulation approximately located within sight from and readily accessible to furnace. 1/4-in. NOTE: Proper polarity must be maintained for 115-v wiring. If (2.) Insert stripped end into factory-supplied black polarity is incorrect, control center fault code indicator light will lead’s butt connector and crimp to secure. -
Page 20: Combustion-Air And Vent Piping
HOT SURFACE EAC-ELECTRONIC AIR IGNITOR CONNECTOR CLEANER TERMINALS (115-VAC 1 AMP MAX) 115-V CONNECTORS PRESSURE SWITCH CONNECTOR HUM-HUMIDIFIER MAIN BLOWER TERMINAL CONTROL WIRE (24-VAC 0.5 AMP MAX) CONNECTOR 24-V THERMOSTAT TERMINALS TRANSFORMER 24-V CONNECTORS DEHUMIDIFIER (DH) CONNECTOR 3-AMP FUSE STATUS AND DIAGNOSTIC LED LIGHTS AIR CONDITIONING (A/C) SETUP SWITCH... - Page 21 Combustion-air and vent pipes must terminate together in same atmosphere pressure zone, either through roof or sidewall (roof termination preferred), using accessory termination kit. See Table 4 for required clearances. TABLE 4—COMBUSTION-AIR AND VENT PIPE TERMINATION CLEARANCES CLEARANCE (FT) LOCATION U.S.A.
- Page 22 3 elbows and 17 ft of vent pipe, along with 5 elbows and 16 ft WARNING: All combustion-air and vent pipes must be of combustion-air pipe. Table 5 indicates this application would airtight and watertight. Pipes must also terminate exactly allow a 1-1/2-in.
- Page 23 TABLE 5—MAXIMUM ALLOWABLE PIPE LENGTH (FT) PIPE NUMBER OF 90° ELBOWS TERMINATION ALTITUDE UNIT SIZE DIAMETER TYPE (IN.)* 1-1/2 2 Pipe or 2-In. 042040 Concentric 1-1/2 2 Pipe or 2-In. 042060 Concentric 1-1/2 042080 2 Pipe or 2-In. →060080 Concentric 0 to 2000 2 Pipe or 2-In.
- Page 24 TABLE 5—MAXIMUM ALLOWABLE PIPE LENGTH (FT) Continued PIPE NUMBER OF 90° ELBOWS TERMINATION ALTITUDE UNIT SIZE DIAMETER TYPE (IN.)* 1-1/2 2 Pipe or 2-In. 042040 Concentric 1-1/2 2 Pipe or 2-In. 042060 Concentric 1-1/2 042080 2 Pipe or 2-In. 6001 to 7000‡ →060080 Concentric 2 Pipe or 2-In.
-
Page 25: Concentric Vent And Combustion-Air Termination Kit Installation
A plugged drain connection has been provided on this 6. Clean and dry all surfaces to be joined. fitting for use when moisture is found in combustion-air 7. Check dry fit of pipe and mark insertion depth on pipe. intake pipe and combustion box. NOTE: It is recommended that all pipes be cut, prepared, and NOTE: Moisture in combustion-air intake may be result of preassembled before permanently cementing any joint. - Page 26 ROOF 18″ MAXIMUM BRACKET COUPLING COMBUSTION VERTICAL SEPARATION VENT BETWEEN COMBUSTION AIR AND VENT 8 3 / 4 ″ FOR 3″ KIT 6 3 / 4 ″ FOR 2″ KIT MAINTAIN 12 IN. MINIMUM CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL. MAXIMUM OF 24 IN.
-
Page 27: Multiventing And Vent Terminations
TABLE 6—MAXIMUM ALLOWABLE EXPOSED VENT PIPE LENGTH (FT) WITH INSULATION IN WINTER DESIGN TEMPERATURE AMBIENT* WINTER INSULATION THICKNESS (IN.)† UNIT MAXIMUM PIPE DESIGN TEMPERA- SIZE DIAMETER TURE (°F) 042040 042060 042080 →060080 2-1/2 060100 2-1/2 2-1/2 →060120 * Pipe length (ft) specified for maximum pipe lengths located in unconditioned spaces. Pipes located in unconditioned space cannot exceed total allowable pipe length as specified in Table 5. - Page 28 A85182 Fig. 36—Rooftop Termination (Dimension "A" is Touching or 2-In. Maximum Separation) 1″ MAXIMUM VENT (TYP) VENT COMBUSTION AIR VENT COMBUSTION VENT A93056 A93057 Fig. 37—Concentric Vent and Combustion-Air Roof Fig. 38—Concentric Vent and Combustion-Air Side Termination (Dimension "A" is Touching or 2-In. Maximum Termination (Dimension "A"...
-
Page 29: Condensate Drain
furnaces are vented near each other, 2 vent terminations may be Outdoor draining of the furnace is permissible if allowed by local installed as shown in Fig. 36, 37, 38, 39, or 40, but next vent codes. Caution should be taken when freezing ambient may freeze termination must be at least 36 in. -
Page 30: Sequence Of Operation
NOTE: The initial heat mode after 115-v or 24-v power interrup- tion will be LOW HEAT. Low heat remains energized for 16 CONDENSATE TRAP minutes before high heat is initiated, providing thermostat is still calling for heat. After the initial cycle, the microprocessor evaluates the length of low- and high-heat operating times and calculates optimum length of low and high heat for next heat cycle. -
Page 31: Cooling Mode
NOTE: No safeties are bypassed when using emergency heat 3. Electronic Air Cleaner—The EAC-1 terminal is energized mode. whenever blower operates. Emergency heat mode can be selected using setup switch SW-4. 4. Cooling unit—The cooling unit stops when thermostat R-Y SW-4 should be used when a fault condition exists or difficult to signal is terminated. -
Page 32: Continuous Fan Mode
b. R-W/W1 with R-Y/Y2 and R-G signals terminated— 2. Inducer motor operates for 20 sec at low speed, operates 20 sec at high speed, then turns off. The blower continues to operate completing a normal blower off delay. 3. Hot surface ignitor is energized for 15 sec, then de- energized. -
Page 33: Select Setup Switch Positions
TABLE 7—AIR CONDITIONING (A/C) AIRFLOW SETUP SWITCH POSITION A/C SETUP ALLOWABLE FURNACE MODEL SETUP AIR CONDITIONER SWITCH POSITION CFM AIRFLOW (TONS) →060080 →060120 A/C-1 A/C-2 A/C-3 042040 042060 042080 060100 1200 or 3 Tons 3 Tons 3 Tons 5 Tons 5 Tons 5 Tons Default... -
Page 34: Adjustments
TABLE 8—CONTINUOUS FAN (CF) AIRFLOW SETUP SWITCH POSITION CF SETUP ALLOWABLE FURNACE MODEL SETUP CONTINUOUS SWITCH POSITION FAN (CFM) →060080 →060120 CF-1 CF-2 CF-3 042040 042060 042080 060100 Default 565* 515* 690* 690* 860* 1035* — — — 1000 1200 1400 1600 —... - Page 35 TABLE 9—SETUP SWITCH DESCRIPTION e. Refer to Table 12 for cubic ft of gas per hr. f. Multiply gas rate (cu ft/hr) by heating value (Btu/cu ft). SETUP NORMAL DESCRIPTION OF USE SWITCH NO. POSITION Obtain heating value from local gas utility. Turn switch to ON for fault history dis- SW-1 play.
-
Page 36: Set Temperature Rise
TABLE 11—MODEL 355MAV ORIFICE SIZE AND MANIFOLD PRESSURE FOR CORRECT INPUT RATE (Tabulated Data Based on Altitude Up to 2000 ft and 20,000 Btuh High Heat/13,000 Btuh Low Heat Per Burner) SPECIFIC GRAVITY OF NATURAL GAS GAS HEAT 0.58 0.60 0.62 0.64 0.66... -
Page 37: Set Thermostat Heat Anticipator
TABLE 12—GAS RATE CU FT/HR SECONDS SIZE OF TEST DIAL SECONDS SIZE OF TEST DIAL FOR 1 FOR 1 REVOLUTION cu ft cu ft cu ft REVOLUTION cu ft cu ft cu ft 1800 1636 1500 1385 1286 1200 1125 1059 1000 BURNER... -
Page 38: Checklist
5. Turn off 115-v power to furnace. THERMOSTAT SUBBASE TERMINALS WITH THERMOSTAT REMOVED 6. Reconnect inducer motor wire harness. Reinstall furnace access door. HOOK-AROUND VOLT/AMMETER 7. Turn on 115-v power to furnace. 8. Reset thermostat to desired temperature. R Y W G CHECKLIST 1. -
Page 39: Checklist
CHECKLIST—INSTALLATION Condensate Drain Load Calculation ________ Unit Level or Pitched Forward ____________ Heating Load (Btuh) Internal Tubing Connections Free of ________ Kinks and Traps ____________ Cooling Load (Btuh) External Drain Connection Leak Tight ____________ Furnace Model Selection ________ and Sloped COMBUSTION AND VENT PIPING Condensate Trap Primed before ________... - Page 40 SERVICE TRAINING Packaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, including: • Unit Familiarization • Maintenance • Installation Overview • Operating Sequence A large selection of product, theory, and skills programs is available, using popular video-based formats and materials.
Need help?
Do you have a question about the 355MAV C Series and is the answer not in the manual?
Questions and answers