Rheem 95P series Installation Instructions Manual
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Rheem 95P series Installation Instructions Manual

4 position condensing single stage gas furnaces
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INSTALLATION INSTRUCTIONS
FOR 4 POSITION CONDENSING SINGLE STAGE
SINGLE-STAGE GAS FURNACES
(-)95P SERIES
& (-)(-)95MSP SERIES
ISO 9001:2008
U.L. and/or C.S.A. recognized fuel gas and CO (carbon monoxide) detectors are rec-
ommended in all applications, and their installation should be in accordance with the
manufacturer's recommendations and/or local laws, rules, regulations, or customs.
92-24161-111-14
SUPERSEDES 92-24161-111-13

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  • Page 1 INSTALLATION INSTRUCTIONS FOR 4 POSITION CONDENSING SINGLE STAGE SINGLE-STAGE GAS FURNACES (-)95P SERIES & (-)(-)95MSP SERIES U.L. and/or C.S.A. recognized fuel gas and CO (carbon monoxide) detectors are rec- ommended in all applications, and their installation should be in accordance with the manufacturer’s recommendations and/or local laws, rules, regulations, or customs.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1 TABLE OF CONTENTS..... . . 2 Optional Termination Angles for Alt. Horizontal and Variant of Alt. Horizontal 2 GENERAL INFORMATION .

  • Page 3: General Information

    GENERAL INFORMATION NOTE: A heat loss calculation should be performed to 1. As non-direct vent central forced air furnaces taking properly determine the required furnace BTU size for the combustion air from the installation area or using air structure. Also, the duct must be properly designed and in- ducted from the outside.

  • Page 4: Receiving

    GENERAL INFORMATION (cont.) CALIFORNIA RESIDENTS ONLY In Canada installations must comply with CSA B149.1. Install units in Canada in accordance with CSA-B149, local IMPORTANT: All manufacturer products meet current Fed- installation codes and authorities having jurisdiction. CSA- eral OSHA Guidelines for safety. California Proposition 65 B149.1 is available from: warnings are required for certain products, which are not covered by the OSHA standards.

  • Page 5: Checklist

    Installation Instructions remain with the furnace as a reference guide to the servicing contractor. We recommend that performance and installation data be recorded for future reference on this sheet to meet service and warranty obligations so that job site information is available when required. Installation Checklist ______ ft.

  • Page 6: Safety Information

    SAFETY INFORMATION WARNING WARNING DO NOT INSTALL THIS FURNACE IN A MOBILE HOME!! COMBUSTION AND VENTILATION AIR MUST BE PRO- THIS FURNACE IS NOT APPROVED FOR INSTALLATION VIDED TO THE FURNACE AS REQUIRED BY THE NA- IN A MOBILE HOME. DOING SO COULD CAUSE FIRE, TIONAL FUEL-GAS CODE (U.S.) AND CSA B149.1 PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

  • Page 7: Important Information About Efficiency And Quality

    SAFETY WARNING WARNING ALWAYS INSTALL THE FURNACE TO OPERATE WITHIN DUCT LEAKS CAN CREATE AN UNBALANCED SYSTEM THE FURNACE’S INTENDED TEMPERATURE-RISE AND DRAW POLLUTANTS SUCH AS DIRT, DUST, FUMES RANGE WITH A DUCT SYSTEM WHICH HAS AN EXTER- AND ODORS INTO THE HOME CAUSING PROPERTY NAL STATIC PRESSURE WITHIN THE ALLOWABLE DAMAGE.

  • Page 8: Commonwealth Of Massachusetts Note

    COMMONWEALTH OF MASSACHUSETTS NOTE IMPORTANT! THE COMMONWEALTH OF MASSACHU- 4. INSPECTION. The state or local gas inspector of the SETTS REQUIRES COMPLIANCE WITH REGULATION side wall horizontally vented gas fueled equipment shall 248 CMR 4.00 AND 5.00 FOR INSTALLATION OF not approve the installation unless, upon inspection, the in- THROUGH-THE-WALL VENTED GAS APPLIANCES AS spector observes carbon monoxide detectors and signage...

  • Page 9: Location Requirements

    LOCATION REQUIREMENTS GENERAL INFORMATION any exposed drain piping must be protected from freezing WARNING as required by local practices or codes. A UL or CSA listed heat tape or UL or CSA approved heating cable with a rat- WHEN THIS FURNACE IS INSTALLED IN A RESI- ing of 3-6 watts per foot is acceptable protection when in- DENTIAL GARAGE, IT MUST BE INSTALLED SO THE stalled and maintained in accordance with the...

  • Page 10: Site Selection

    LOCATION REQUIREMENTS GENERAL INFORMATION (cont.) WARNING WARNING THIS FURNACE IS NOT APPROVED OR RECOM- COMBUSTIBLE MATERIAL MUST NOT BE PLACED ON OR AGAINST THE FURNACE JACKET. THE MENDED FOR INSTALLATION ON ITS BACK, WITH AREA AROUND THE FURNACE MUST BE KEPT ACCESS DOORS FACING UPWARDS.

  • Page 11: Clearance Table

    FIGURE 6 UNIT DIMENSIONS (CLEARANCE TO COMBUSTIBLES)

  • Page 12: Field Conversion

    FIELD CONVERSIONS GENERAL CONVERSION INSTRUCTIONS CONDENSATE PVC/HOSE OPTIONS CONVERSION AND INSTALLATION CONSIDERATIONS BULKHEAD COUPLING CONDENSATE DRAINIAGE HAS OPTIONS FOR 3/4" OR 1/2" ALL CONVERSIONS REQUIRE THE CONDENSATE PLUMBING TO PVC CONNECTIONS. THE BULKHEAD COUPLING CONNECTS THE HAVE DECLINE IN THE DIRECTION OF THE WATER FLOW. RUBBER HOSES FROM INSIDE THE UNIT TO THE PVC PIPE EXTERIOR OF THE UNIT.

  • Page 13: Lists Of Materials For Parts Bag And Conversion Kits

    FIELD CONVERSIONS GENERAL PARTS REQUIRED FOR CONVERSIONS PARTS BAG (PROVIDED WITH UNIT) (X2) (X3) (X2) 2" PVC VANE INTAKE INTAKE AIR BULKHEAD HOSE CLAMP 1/4" HOLE #8 X 1/2" COUPLING DIFFUSER COUPLING PLUG SCREW TUBE C HOSE DOUBLE ELBOW CONVERSION KIT RXGY-CK (X4) 2"...

  • Page 14: Conversion Table Of Contents

    FIELD CONVERSIONS FIELD CONVERSION TO VARIOUS CONFIGURATIONS Furnaces can be converted in the field from upflow (as-shipped) to downflow, horizontal left or horizontal right as necessary. In addition, there are different venting options, including a zero-clearance option, to give the installer flexibility in locating the venting for this furnace.

  • Page 15: Upflow With Vertical Vent

    UPFLOW VERTICAL VENT INSTALL PARTS NEEDED: PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS FROM THE PARTS BAG ONLY. NO OTHER CONVERSION KITS ARE NEEDED. FROM PARTS BAG (PROVIDED WITH UNIT) TUBE C HOSE - DOUBLE ELBOW BULKHEAD INTAKE HOSE #8 X 1/2" COUPLING COUPLING CLAMP...
  • Page 16 Checklist: __ VERIFY ALL HOSES ARE SECURE AND FULLY SEATED. __ CONFIRM THAT ALL HOSES ARE FREE OF KINKS __ CONFIRM ALL HOSES AND OTHER DRAIN PARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW __ ALL CLAMPS AND COUPLINGS ARE TIGHTENED __ ALL DRAIN PORTS ARE PLUGGED __ UNIT HAS FORWARD PITCH __ HEAT TAPE INSTALLED(IF REQUIRED)

  • Page 17: Upflow With Left Side Vent

    UPFLOW LEFT VENT PARTS NEEDED: FROM PARTS BAG (PROVIDED W/UNIT) FROM CONVERSION KIT RXGY-CK PARTS NEEDED FOR THIS CONVERSION REQUIRE THE (X2) OUTLINED ITEMS FROM THE PARTS BAG (X3) AND CONVERSION KIT RXGY-CK. YOU BULKHEAD HOSE INTAKE #8 X 1/2" MUST HAVE THESE PARTS BEFORE COUPLING CLAMP...
  • Page 18 TUBE C CUT TO FIT CABINET WIDTH HOSE A HOSE - DOUBLE ELBOW (X3) HOSE A TUBE C 5b - RIGHT SIDE DRAIN OPTION 5b1 - CUT TUBE “C” TO FIT CORRESPONDING CABINET WIDTH. 5b2 - INSERT TUBE “C” INTO END “2” OF HOSE- DOUBLE ELBOW 5a - LEFT SIDE DRAIN OPTION 5b3 - SLIDE TWO WIRE CLAMPS OVER TUBE “C”, SLIDE ONE WIRE CLAMP OVER END “1”...

  • Page 19: Downflow With Right Vent (Non Zero Clearance)

    DOWNFLOW W/ RIGHT VENT (NON-ZERO CLEARANCE) DOWNFLOW W/ RIGHT VENT (NON-ZERO CLEARANCE) DOWNFLOW W/ RIGHT VENT (NON-ZERO CLEARANCE) DOWNFLOW W/ RIGHT VENT (NON-ZERO CLEARANCE) DOWNFLOW W/ RIGHT VENT (NON-ZERO CLEARANCE) PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS FROM THE PARTS BAG AND CONVERSION KIT AND CONVERSION KIT RXGY-CK.
  • Page 20 INSTALL INSERT AIR DIFFUSER UNTIL TABS ARE FULLY SEATED .559 DRAIN PLUG DISCARD NOTE: DIFFUSER MAY HAVE A TENDENCEY TO FALL OUT OF THE COUPLING AT THIS STEP. THE INSTALLER MAY ELECT TO INSTALL THE DIFFUSER AFTER ROTATING THE FURNACE TO THE HORIZONTAL POSITION.
  • Page 21 NOTE: REMAINING STEPS SHOWN WITH FURNACE IN DOWN FLOW ORIENTATION SEE CRITICAL HOSE CLAMP LOCATION NOTE APPROXIMATELY 10-20° TILT IN THE GENERAL COVERSION INSTRUCTIONS. ON INDUCER COUPLING 1/4” TUBE CUT TO FIT (APPROX 10-1/2”) HOSE E HOSE D GROUND 10° ROTATE INDUCER COUPLING TO ENSURE DOWNWARD FLOW OF CONDENSATE FROM FLUE VENTING...
  • Page 22 Checklist: __ VERIFY ALL HOSES ARE SECURE AND FULLY SEATED. __ ALL DRAIN PORTS ARE PLUGGED __ UNIT HAS FORWARD PITCH __ HEAT TAPE INSTALLED(IF REQUIRED) __ CONFIRM THAT ALL HOSES ARE FREE OF KINKS __ CONFIRM ALL HOSES AND OTHER DRAIN PARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW __ BOTH WORM DRIVES ON THE HOSE CLAMPS OF THE IDB COUPLING MUST BE LOCATED ON THE TOP OF THE COUPLING.

  • Page 23: Downflow Zero-Clearance

    DOWN FLOW ZERO CLEARANCE DOWN FLOW ZERO CLEARANCE DOWN FLOW ZERO CLEARANCE DOWN FLOW ZERO CLEARANCE PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS FROM THE PARTS BAG FROM THE PARTS BAG PARTS BAG, CONVERSION KIT RXGY-CK PARTS BAG, CONVERSION KIT RXGY-CK...
  • Page 24 NOTE: NOTE: IF THE IDB COUPLING IS IF THE IDB COUPLING IS REMOVED, IT MUST BE REMOVED, IT MUST BE REPLACED IN THE PROPER REPLACED IN THE PROPER ORIENTATION. AN ARROW IS ORIENTATION. AN ARROW IS ORIENTATION. AN ARROW IS ORIENTATION.
  • Page 25 1/8" DRILL 1/8" DRILL DISCARD 7/8" PLUG DISCARD 7/8" PLUG LEFT DRAIN OPTION LEFT DRAIN OPTION RIGHT DRAIN OPTION RIGHT DRAIN OPTION DETERMINE RIGHT OR LEFT DRAIN OPTION. DETERMINE RIGHT OR LEFT DRAIN OPTION. LOCATE 7/8" HOLE IN JACKET SIDE REMOVE PLUG - DISCARD. LOCATE 7/8"...
  • Page 26 APPROXIMATLY 10-20° TILT APPROXIMATLY 10-20° TILT SEE CRITICAL HOSE CLAMP 1/4” TUBE CUT 1/4” TUBE CUT LOCATION NOTE IN THE ON INDUCER COUPLING ON INDUCER COUPLING TO FIT (APPROX GENERAL CONVERSION 10-1/2”) INSTRUCTIONS. HOSE D GROUND 10° 10° ROTATE INDUCER COUPLING TO ENSURE ROTATE INDUCER COUPLING TO ENSURE HOSE E DOWNWARD FLOW OF CONDENSATE FROM...
  • Page 27 Checklist: __ VERIFY ALL HOSES ARE SECURE AND FULLY SEATED. __ CONFIRM THAT ALL HOSES ARE FREE OF KINKS. __ CONFIRM ALL HOSES AND OTHER DRAIN PARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW. __ BOTH WORM DRIVES ON THE HOSE CLAMPS OF THE IDB COUPLING MUST BE LOCATED ON THE TOP OF THE COUPLING.
  • Page 28 HORIZONTAL RIGHT / RIGHT VENT AIRFLOW PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS FROM THE PARTS BAG AND CONVERSION KIT RXGY-CK. FROM THE PARTS BAG AND CONVERSION KIT RXGY-CK. YOU MUST HAVE THE PARTS OUTLINED BELOW BEFORE PROCEEDING. YOU MUST HAVE THE PARTS OUTLINED BELOW BEFORE PROCEEDING.

  • Page 29: Horizontal Right With Right Vent

    INSTALL CONDENSATE TRAP 3a - REMOVE RECTANGLE FLUSH MOUNT PLUG FROM JACKET SIDE-DISCARD 3b - PRE-DRILL (3) Ø 1/8" HOLES AS SHOWN FOR CONDENSATE TRAP !! IMPORTANT !! CONDENSATE TRAP INFORMATION RECTANGLE PLUG JACKET DISCARD DRILL (3) Ø1/8" HOLES INSTALL CONDENSATE TRAP DISCARD INSTALL HOSE A...
  • Page 30 Checklist: __ VERIFY ALL HOSES ARE SECURE AND FULLY SEATED. __ CONFIRM THAT ALL HOSES ARE FREE OF KINKS. __ CONFIRM ALL HOSES AND OTHER DRAIN PARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW. __ BOTH WORM DRIVES ON THE HOSE CLAMPS OF THE FLUE TRANSITION MUST BE LOCATED ON THE TOP OF THE COUPLING.

  • Page 31: Horizontal Right With Vertical Vent

    HORIZONTAL RIGHT / VERTICAL VENT HORIZONTAL RIGHT / VERTICAL VENT HORIZONTAL RIGHT / VERTICAL VENT HORIZONTAL RIGHT / VERTICAL VENT AIRFL PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS FROM THE PARTS BAG FROM THE PARTS BAG PARTS BAG AND CONVERSION KIT RXGY-CK...
  • Page 32 4a - REMOVE RECTANGLE FLUSH MOUNT PLUG FROM JACKET SIDE - DISCARD 3a - RELOCATE THE Ø .403" DRAIN PLUG IN THE COLLECTOR BOX. 4b - PRE-DRILL (3) Ø1/8" HOLES AS SHOWN FOR CONDENSATE TRAP 3b - RELOCATE 1/4" VINYL CAP (YELLOW) ON COLLECTOR BOX VENT TAP. 4c - INSTALL 2"...
  • Page 33 NOTE: REMAINING STEPS SHOWN WITH FURNACE IN HORIZONTAL RIGHT ORIENTATION 6a - ROTATE UNIT 90° 6b - CUT 1/4" VENT HOSE TO FIT (APPROX. 5-1/2") AND INSTALL AS SHOWN ROTATE 6c - CUT HOSE E AT LINE 1- INSTALL UNIT 90° NOTE: MAKE SURE CUT IS STRAIGHT AND SQUARE 6d - CUT HOSE F ON LINE CORRESPONDING TO UNIT WIDTH AND INSTALL NOTE: 17.5": LINE 1, 21": LINE 2, 24.5": DO NOT CUT...

  • Page 39: Horizontal Left With Left Vent

    HORIZONTAL LEFT / LEFT VENT HORIZONTAL LEFT / LEFT VENT HORIZONTAL LEFT / LEFT VENT AIRFL PARTS NEEDED: PARTS NEEDED: PARTS NEEDED: PARTS NEEDED: FROM PARTS BAG(PROVIDED WITH UNIT) FROM PARTS BAG(PROVIDED WITH UNIT) PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS FROM THE PARTS BAG AND CONVERSION KIT...
  • Page 40 NOTE: TO PREVENT DAMAGE TO THE TRAP, THE INSTALLER MAY ELECT TO INSTALL IT DURING A LATER STEP. (AFTER THE UNIT IS ROTATED) 4a - REMOVE METAL BRACKET AND.403" DRAIN PLUG - DISCARD. 4b - REMOVE HOSE “A” - DISCARD 4c - INSTALL Ø.559"...
  • Page 41 Checklist: __ VERIFY ALL HOSES ARE SECURE AND FULLY SEATED. __ CONFIRM THAT ALL HOSES ARE FREE OF KINKS. __ CONFIRM ALL HOSES AND OTHER DRAIN PARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW. __ BOTH WORM DRIVES ON THE HOSE CLAMPS OF THE FLUE TRANSITION MUST BE LOCATED ON THE TOP OF THE COUPLING.

  • Page 42: Ducting

    DUCTING External filter racks are available from the distributor. Use FIGURE 7 the following part numbers when ordering: REMOVE SOLID BASE PANEL FROM THE RXGF-CA External Side Filter Rack Kit TOP BEFORE INSTALLING FURNACE RXGF-CB External Bottom Filter Rack Kit RXGF-CC External Filter Rack Kit - Downflow Proper air flow is required for the correct operation of this...
  • Page 43 DUCTING DOWNFLOW INSTALLATIONS WARNING 1. Position the unit to minimize long runs of duct or runs UPFLOW FURNACE: THE SOLID METAL BASE of duct with many turns and elbows. PLATE (SHIPPED WITH THE FURNACE) MUST BE IN- 2. If summer air conditioning is desired, position the in- STALLED IN THE FURNACE BOTTOM WHEN USING door coil on the supply-air side of the unit.
  • Page 44 DUCTING FIGURE 9 FIGURE 10 AS - SHIPPED FLAT INSTALLER BENT - UP INSTALLER BENT - UP ALTERNATE - BENT (DOWN) CUT - OUT USING EMBOSSED ANGLES AS A GUIDE FOR PROPER SIZE 23” x 14” ST-A1194-04-X0 5. If a filter is installed near the furnace, be sure to INSTALLER SHOULD USE DUCK BILLED PLIERS (AKA: FOLDING PLIERS)TO BEND THE FLANGE ALONG THE have adequate space for installation and removal of...

  • Page 45: Venting

    GENERAL VENTING REQUIREMENTS AND GUIDELINES VENTING & COMBUSTION AIR REQUIREMENTS The following types of installations (but not limited to the following) may require outdoor air for combustion (direct- vent) due to chemical exposures: Commercial buildings Buildings with indoor pools Furnaces installed in laundry rooms Furnaces in hobby or craft rooms Furnaces installed near chemical storage areas...
  • Page 46 IN CANADA, PRODUCTS CERTIFIED FOR INSTALLA- TION AND INTENDED TO BE VENTED WITH PLASTIC VENT SYSTEMS (PVC, CVPC & POLYPROPYLENE) MUST USE VENT SYSTEMS THAT ARE CERTIFIED TO THE STANDARD FOR TYPE BH GAS VENTING SYS- TEMS, ULC S636. THE COMPONENTS OF THE CERTIFIED MATERIAL MUST NOT BE INTERCHANGED WITH OTHER VENT SYSTEMS OR UNLISTED PIPE/FITTINGS.
  • Page 47 GENERAL VENTING REQUIREMENTS AND GUIDELINES VENTING & COMBUSTION AIR REQUIREMENTS (cont.) wrap the vent pipe with self-regulating 3 watt or 6 watt heat tape. The heat tape must be U.L. listed and in- stalled per the manufacturer’s instructions. NOTE: Never cover heat tape with insulation. 5.

  • Page 48: Piping Requirements

    %   $  ) $5225<= @:3 AB5?163<2 3<=29 =:H $   2  /: *  9%H F $  2  ./D. *  =:H F $  2  % *  FIGURE 12 ELBOWS STANDARD 90°...

  • Page 49: Equivalent Vent Length

    GENERAL VENTING REQUIREMENTS AND GUIDELINES VENT PIPE SIZING AND MAXIMUM VENT LENGTHS (cont.) * This is the recommended maximum number of long sweep elbows for either 2 or 3 inch pipe. Combinations of long sweep 90s, standard 90s, or 45s may be used, but the manufacturer recommends the use of long sweep 90s whenever possible because the use of the maximum number of standard 90 and 45 elbows only may result in nuisance furnace outages due to individual installation specifics.

  • Page 50: Polypropylene Vent Products

    VENT PIPE SIZING AND MAXIMUM VENT LENGTHS (cont.) 6 below. These manufacturers have provisions for B-vent POLYPROPYLENE VENT PRODUCTS liners and chimney liners which can be used with this fur- Centrotherm brand Innoflue and Duravent Polypro Single- nace with non-direct venting applications only. Refer to the wall and flex venting products are approved for use on this manufacturer’s installation instructions for proper installa- furnace product only in single appliance applications.

  • Page 51: Termination Requirements

    GENERAL VENTING REQUIREMENTS AND GUIDELINES 2. Locate the furnace combustion air inlet a minimum of 3 feet from the vent of any other gas or fuel-burning appli- ance or clothes dryer to prevent recirculation of the flue gases into the furnace combustion air inlet. The only exception to this requirement is the case of multiventing two or more furnaces, which is covered in the section on multiventing of these instructions.

  • Page 52: Non-Direct Venting In An Unconfined Space

    TABLE 7: MINIMUM SPACE REQUIREMENTS  !%   !%  !%      FOR UNCONFINED SPACE, NON-DIRECT VENT $   $    +    ALL FURNACE INSTALLATIONS MUST COMPLY WITH THE NATIONAL FUEL GAS CODE, NFPA 54, AND IN CANADA CSA B149.1;...
  • Page 53 GENERAL VENTING REQUIREMENTS AND GUIDELINES NON-DIRECT VENT (cont.) directly, or by ducts, with the outdoors or spaces (crawl or B. USING OUTDOOR AIR FOR COMBUSTION: attic) that freely communicate with the outdoors. IMPORTANT: Do not take air from an attic space that is A.
  • Page 54 FIGURE 14 FIGURE 15 NON-DIRECT VENT NON-DIRECT VENT AIR FROM ATTIC OR CRAWL OUTSIDE AIR USING A SPACE HORIZONTAL DUCT OUTLET AIR 1 SQ. IN. (6.5 SQ. CM.) PER 2000 BTUH INLET AIR 1 SQ. IN. (6.5 SQ. CM.) PER 2000 BTUH ST-A1194-19 ST-A1194-19 FIG E...

  • Page 55: Non-Direct Venting

    GENERAL VENTING REQUIREMENTS AND GUIDELINES NON-DIRECT VENT (cont.) (crawl or attic) that freely communicate with the outdoors, and shall have a minimum of: A. 1 Square inch for each 3,000 BTUH of the total input rat- ALL VENT INSTALLED THROUGH UNCONDI- ing of all equipment located in the enclosure TIONED SPACE WHERE BELOW-FREEZING TEM- PERATURES ARE EXPECTED SHOULD BE...
  • Page 56 OPTION 3: ALTERNATE HORIZONTAL TERMINATION Figure 19 shows the alternate non-direct vent horizontal termination with minimum clearances. FIGURE 19 ALTERNATE HORIZONTAL NON-DIRECT VENT TERMINAL VENT MAY BE ROTATED AS MUCH AS 45° LEFT OR RIGHT FROM VERTICAL AS LONG AS TIP PORTION RE- MAINS VERTICAL.

  • Page 57: Non-Direct Venting Termination Clearances

    GENERAL VENTING REQUIREMENTS AND GUIDELINES NON-DIRECT VENT TERMINATION CLEARANCES Figure 21 shows minimum clearances that must be used for non-direct venting terminations. FIGURE 21 VENT TERMINATION CLEARANCES FOR NON-DIRECT VENT INSTALLATIONS INSIDE CORNER DETAIL Fixed Operable Fixed Closed Closed Operable AREA WHERE TERMINAL AIR SUPPLY INLET VENT TERMINAL...

  • Page 58: Direct Venting

    DIRECT-VENT (2-PIPE) INSTALLATIONS ALL FURNACE INSTALLATIONS MUST COMPLY The field-supplied vent system used for direct-vent installa- WITH THE NATIONAL FUEL GAS CODE OR, IN tions uses 2 pipes; one inlet pipe for supplying the com- CANADA, CSA B149.1; NATURAL GAS AND bustion air to the furnace, and an exhaust (or flue) pipe for PROPANE INSTALLATION CODE AND LOCAL CODES TO PROVIDE ADEQUATE COMBUSTION...
  • Page 59 GENERAL VENTING REQUIREMENTS AND GUIDELINES DIRECT VENT (cont.) Figure 23 below shows the necessary detail for the roof penetration on a standard direct-vent vertical termination. FIGURE 23 DIRECT VENT VERTICAL TERMINATION DETAIL Terminations more than 24” above roof penetration re- quire additional support.

  • Page 60: Option 2: Standard Horizontal Direct Vent Termination

    OPTION 2: STANDARD HORIZONTAL DIRECT-VENT TERMINATION FIGURE 24 STANDARD HORIZONTAL DIRECT VENTING SEE DETAIL B FOR DIMENSION BETWEEN INTAKE AND EXHAUST SEE DETAIL A COUPLINGS: REQUIRED ON EXTERIOR, OPTIONAL ON INTERIOR 1) SUPPORT HORIZONTAL PIPE EVERY FOUR FEET. 2) WHEN 3” PIPE IS USED REDUCE TO 2” BEFORE NOTE: This detail PENETRATING OUTSIDE WALL.

  • Page 61: Option 4: Alternate Horizontal Direct Vent Termination

    GENERAL VENTING REQUIREMENTS AND GUIDELINES DIRECT VENT (cont.) OPTION 4: ALTERNATE HORIZONTAL DIRECT-VENT TERMINATION NOTE: FIGURE 26 A TRAP MUST BE IN- STALLED IN THIS OPTION TYPICAL HORIZONTAL VENTED 2 PIPE TERMINALS TO PREVENT WATER FROM ENTERING THE FURNACE NOTE: THROUGH THE COMBUS- 1) FOR EXHAUST / INTAKE PENETRATION TION AIR PIPE.

  • Page 62: Horizontal And Variant Of Alt. Horizontal Direct-Vent Terminations (Options 4 And 5)

    OPTIONAL TERMINATION ANGLES FOR OPTION FOR ALT. HORIZ. AND VARIANT OF ALT. HORIZ. DIRECT-VENT TERMINATIONS (OPTIONS 4 &5) NOTE: THESE OPTIONAL TERMINATION ANGLES 4. MARK THE FINAL (22° OR 45°) ANGLES ON THE TOP OF THE VERTICAL RISERS AND FINAL EL- APPLY ONLY TO DIRECT-VENT TERMINATION OP- TIONS 4 AND 5 ABOVE (ALTERNATE HORIZONTAL AND BOWS BEFORE GLUING INTO PLACE TO ENSURE...

  • Page 63: Rxgy-E03A)

    GENERAL VENTING REQUIREMENTS AND GUIDELINES DIRECT VENT (cont.) OPTIONS 6 & 7: VERTICAL OR HORIZONTAL CONCENTRIC VENT TERMINATION FOR 2” PIPE: RXGY-EO2 (U.S. ONLY) OR RXGY-EO2A (U.S. AND CANADA) FOR 3” PIPE: RXGY-EO3 (U.S. ONLY) OR RXGY-EO3A (U.S. AND CANADA) CONCENTRIC TERMINATIONS 3”...
  • Page 64 OPTIONS 8 & 9: 2 & 3 SIDE WALL VENT TERMINATIONS FOR 2 PIPE: RXGY-G02 FOR 3 PIPE: RXGY-G01 This termination is for horizontal venting only. This termi- NOTE: With this option a trap on the inlet combustion nation may be installed with either a non-direct-vent or a air pipe is NOT required.

  • Page 65: Direct Venting Termination Clearances

    GENERAL VENTING REQUIREMENTS AND GUIDELINES DIRECT VENT TERMINATION CLEARANCES Figure 32 shows minimum clearances that must be used for direct venting terminations. FIGURE 32 DIRECT VENT TERMINAL CLEARANCES INSIDE CORNER DETAIL Fixed Operable Fixed Closed Closed Operable AREA WHERE TERMINAL AIR SUPPLY INLET VENT TERMINAL IS NOT PERMITTED...

  • Page 66: Multiventing Of Direct Vent Furnaces

    Figures 33 & 34: NOTE: WHEN VENTING MULTIPLE FURNACES IN CLOSE PROXIMITY, EACH FURNACE MUST BE INDIVIDUALLY VENTED – NO COMMON VENTING IS PERMITTED. See Figures 33 & 34 for positioning of the termina- tions. When more than two furnaces are to be vented, there must be at least 4 feet between the first two furnaces and the third and etc.

  • Page 67: Neutralizer

    CONDENSATE DRAIN CONDENSATE DRAIN & DRAIN NEUTRALIZER GENERAL INFORMATION B. FURNACE SHUTOFF – When the top of the vent tube is above the elevation of the LOWER condensate water level sensor (aka electronic water level sensor), the furnace will be shut off in the event of a blocked drain and no heat will be provided.
  • Page 68 CONDENSATE DRAIN CONDENSATE DRAIN & DRAIN NEUTRALIZER (cont.)

  • Page 69: Gas Supply And Piping

    GAS SUPPLY GAS SUPPLY AND PIPING IMPORTANT SAFETY INFORMATION AND WILL RISE, POSSIBLY ACCUMULATING IN HIGHER PORTIONS OF THE STRUCTURE. NATURAL GAS AND PROPANE • IF A GAS LEAK IS PRESENT OR SUSPECTED: (LIQUEFIED PETROLEUM GAS / LPG) - DO NOT ATTEMPT TO FIND THE CAUSE YOUR- SAFETY SELF.

  • Page 70: Gas Piping

    FIGURE 36 GAS PIPING INSTALLATION THIS FURNACE IS EQUIPPED AT THE FACTORY UPFLOW FOR USE ON NATURAL GAS ONLY. CONVERSION TO LP GAS REQUIRES A SPECIAL KIT IS AVAIL- ABLE AT THE DISTRIBUTOR. FAILURE TO USE THE MANUAL SHUT OFF VALVE PROPER CONVERSION KIT CAN CAUSE FIRE, (4-5 FT.
  • Page 71 FIGURE 36 – continued GAS PIPING INSTALLATION CONVENTIONAL ALTERNATE DOWNFLOW MANUAL SHUT OFF VALVE (4-5 FT ABOVE FLOOR REQUIRED BY SOME UTILITIES) UNION DRIP (2) STREET ELBOWS ST-A1194-08-02 ST-A1205-08-02 (CONTINUED ON NEXT PAGE)
  • Page 72 FIGURE 36 – continued GAS PIPING INSTALLATION HORIZONTAL MANUAL SHUT OFF VALVE UNION UNION DRIP (2) STREET (2) STREET ELBOWS ELBOWS MANUAL UNION SHUT OFF UNION VALVE DRIP HORIZONTAL LEFT HORIZONTAL RIGHT ST-A1205-09-01...

  • Page 73: Gas Pressure

    GAS SUPPLY GAS PRESSURE IMPORTANT: Do not run a flexible gas connector inside the furnace. The gas pipe gasket in the cabinet does not seal FIGURE 37A around a flexible gas line. HONEYWELL GAS VALVE If local codes allow the use of a flexible gas appliance con- REGULATOR CAP nector, always use a new listed connector.

  • Page 74: Lp Conversion

    LP TANKS FROM LOCAL LP SUPPLIER MUST NOT BE USED TO STORE ANYTHING (SUCH AS FERTIL- IZER) EXCEPT LP GAS. THIS INCLUDES ALL DELIV- ERY VESSELS (LP TRUCKS). IF MATERIAL OTHER THAN LP GAS IS USED IN THE SAME VESSELS/TANK AS THE LP GAS, THE LP GAS CAN BECOME CONTAMINATED AND DAMAGE THE FUR- NACE.

  • Page 75: Setting The Gas Pressure

    GAS PRESSURE GAS PRESSURE SETTING GAS PRESSURE The maximum gas supply pressure to the furnace ELEVATIONS ABOVE 2000 FT. REQUIRE THAT THE must not exceed 10.5" w.c. natural gas, or 13" w.c. LP FURNACE INPUT RATING BE ADJUSTED AND THAT gas.

  • Page 76: Reversing The Electrical Connection

    TURN OFF ELECTRIC POWER AT FUSE BOX OR SERVICE PANEL BEFORE MAKING ANY ELECTRI- CAL CONNECTIONS. FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN PER- FIGURE 39 SONAL INJURY OR DEATH. DOOR SWITCH REMOVAL INSTRUCTIONS THE CABINET MUST HAVE AN UNINTERRUPTED GROUND ACCORDING TO THE LATEST EDITION OF THE NATIONAL ELECTRICAL CODE, ANSI/NFPA70- OR IN CANADA, THE CANADIAN ELECTRICAL...

  • Page 77: Electrical Wiring

    ELECTRICAL WIRING REVERSING ELECTRICAL CONNECTION & THERMOSTAT 5. Move the junction box to the opposite side of the cabi- Install the room thermostat in accordance with the instruc- net. Install using the two screws removed in step 3 tion sheet packed in the box with the thermostat. Run the above.

  • Page 78: Accessories

    ELECTRONIC AIR CLEANER FILTERS (See Figure 43) Line voltage power can be supplied from the terminal la- Keep filters clean at all times. A filter is not provided with beled “EAC” and a line voltage neutral terminal on the con- the furnace, but one must be field-supplied and in- trol board.
  • Page 79 FIGURE 43 UPFLOW/HORIZONTAL FILTER LOCATIONS RXGF-CB RXGF-CB ACCESSORY FILTER RACK ACCESSORT FILTER RACK FIELD SUPPLIED FILTER FIELD SUPPLIED FILTER ST-A1194-10-X0 SIDE RETURN FLANGE WRAPS AROUND BACK AND SCREWS TO THE REAR OF THE FURNCE, AT THE LOCATIONS PROVIDED CUT - OUT USING EMBOSSED ANGLES AS A GUIDE FOR PROPER SIZE 23”...

  • Page 80: Twinning

    Twinning operation of two furnaces, installed side-by-side, UT ELECTRONIC CONTROLS 1194- connected by a common duct system with main power 200 CONTROL BOARD supplied by the same source, and controlled by a common (62-104058-02) thermostat can be done with the UT Electronic Controls 1194-200 integrated control boards.
  • Page 81 ST-A1194-25 THERMOSTAT 1-STAGE NOTE: A FAULT CODE 20 WILL FLASH TO INDICATE A TWINNING PROBLEM. CONFIRM PROPER WIRING IF THIS FAULT IS PRESENT.
  • Page 82 ST-A1194-25 THERMOSTAT 2-STAGE...

  • Page 83: High Altitude

    No high altitude pressure switch changes are required; NOTE: Factory installed orifices are calculated and sized only a 4% derate at altitudes above 2,000 feet. based on a sea level Natural Gas heating value of 1100 BTU per cubic ft. Regional reduced heating values may NATURAL GAS nullify the need to change orifices except at extreme alti- tudes.
  • Page 84 TABLE 14 SUPPLEMENTAL ORIFICE SIZE CHART...

  • Page 85: Lp Gas At High Altitudes

    ORIFICE INSTALLATION Example 2: 1.10 mm drill size orifice required LP Gas is a manufactured gas that has consistent heating Part # 62-22175-90 value across most regions. The NFGC guidelines are used with the following excep- ALTERNATE METHOD OF tion: CANADIAN HIGH-ALTITUDE The recommended LP Gas high altitude orifice selections DERATE...

  • Page 86: Startup Procedure

    This furnace is equipped with a direct ignition control. Each SEQUENCE OF OPERATION time the room thermostat calls for heat, the ignitor lights UT ELECTRONIC CONTROLS the main burners directly. See the lighting instructions on Integrated Controls with Direct Spark Ignition. the furnace.

  • Page 87: Diagnostics And Fault Codes

    DIAGNOSTICS AND FAULT CODES B. The upper-most horizontal segment of the seven-seg- ment display is energized for ½ second All furnace controls come standard with a 7-segment diag- C. The second two-digit fault is displayed once as de- nostic display. During standby mode with no fault codes scribed above.

  • Page 88: Lockout

    All lockout conditions can be cleared immediately provided HARD LOCKOUT that the original fault causing the lockout is cleared and Three conditions shall cause a hard lockout: power to the unit is cycled off and then back on again or 1.

  • Page 89: Field Selections - Dipswitches

    A dipswitch bank; SW1 is provided for some field adjust- time is provided. The dipswitches are labeled SW2 and ments. Heating blower off delay, cooling (and heat-pump) SW3. The following table defines the settings: blower off delay, display (7-Segment) orientation and fault clear are the adjustments and functions that can be han- 90 seconds dled using the dipswitches.

  • Page 90: Fault Clear

    MANUAL FAULT CLEAR; SW4 switch becomes on/off/on/off/on/off or off/on/off/on/off/on within 30 seconds. When this action is detected within 30 sec- Faults will automatically be cleared from the fault buffer after one onds, the fault code memory buffer shall be cleared. Be sure to week.
  • Page 91 TABLE 17 TIMING DIAGRAM CLOSED OPEN OPEN ST-A1194-27-X0 The maximum gas supply pressure to the furnace should To change orifice spuds, shut off the manual gas valve and be 10.5" w.c. for natural gas and 13.0" w.c. for L.P. The remove the gas manifold.

  • Page 92: Setting Input Rate

    TABLE 18 METER TIME                    !!                 " # $ $...
  • Page 93 3. Operate the furnace for a minimum of 15 minutes in TYPICAL FURNACE NAME PLATE gas heat mode. 4. When the thermometer in the supply air duct stops ris- RHEEM SALES COMPANY, INC. FORT SMITH, ARKANSAS CANADIAN ENERGY PERFORMANCE ing (approximately five minutes), subtract the return air...

  • Page 94: Airflow

    TABLE 19 AIR FLOW PERFORMANCE – (-)95P & (-)(-)95MSP SERIES MODELS CFM Air Delivery Motor HP [W] External Static Pressure, ”W.C. [kPa] Model Blower Size IN [MM] Speed Tap 0.1 [0.02] 0.2 [0.05] 0.3 [0.07] 0.4 [0.10] 0.5 [0.12] 0.6 [0.15] 0.7 [0.17] 0.8 [0.19] 732 [345]...

  • Page 95: Maintenance

    GAS FURNACE (DIRECT DRIVE) The blower motor is wired for blower speeds required for normal operation as shown. INSTRUCTIONS FOR CHANGING If additional blower speed taps are available (leads con- BLOWER SPEED nected to “M1” and “M2” on the electronic control), speeds may be changed if necessary to fit requirements of the par- ticular installation.

  • Page 96: System Operation Info

    ADVISE THE CUSTOMER or radios to influence the thermostat operation. 6. Except for the mounting platform, keep all combustible 1. Keep the air filters clean. The heating system will oper- articles 3 feet from the furnace and vent system. ate better, more efficiently and more economically. 7.

  • Page 97: Troubleshooting

    FIGURE 50 INTEGRATED FURNACE CONTROL TROUBLESHOOTING GUIDE CODE DESCRIPTION KEY TO ABBREVIATIONS NOTE: Always verify gas valve inlet and outlet gas Standby IBM = Indoor Blower Motor FLAME (AMBER) LED CODES pressure . IDM = Induced Draft Motor Compressor on (cooling or heat pump heat) OFF = No Flame Presen t IFC = Integrated Furnace Control Gas heat on...

  • Page 98: Wiring Diagram

    FIGURE 51 WIRING DIAGRAM (-)95P & (-)(-)95MSP SERIES...
  • Page 100 CM 0716...

This manual is also suitable for:

95msp series

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