background image

NEVER ALLOW PRODUCTS OF
COMBUSTION OR THE FLUE
PRODUCTS TO ENTER THE
RETURN AIR DUCTWORK, OR THE
CIRCULATING AIR SUPPLY. ALL
RETURN DUCTWORK MUST BE
ADEQUATELY SEALED AND
SECURED TO THE FURNACE WITH
SHEET METAL SCREWS, AND
JOINTS TAPED. WHEN A FURNACE
IS MOUNTED ON A PLATFORM,
WITH RETURN THROUGH THE
BOTTOM, IT MUST BE SEALED
AIRTIGHT BETWEEN THE FURNACE
AND THE RETURN AIR PLENUM.
THE RETURN AIR PLENUM MUST
BE PERMANENTLY ENCLOSED.
NEVER USE A DOOR AS A PART OF
THE RETURN AIR PLENUM. THE
FLOOR OR PLATFORM MUST
PROVIDE SOUND PHYSICAL
SUPPORT OF THE FURNACE,
WITHOUT SAGGING, CRACKS, 

GAPS, ETC., AROUND THE BASE AS
TO PROVIDE A SEAL BETWEEN
THE SUPPORT AND THE BASE.

FAILURE TO PREVENT PRODUCTS
OF COMBUSTION FROM BEING
CIRCULATED INTO THE LIVING
SPACE CAN CREATE POTENTIALLY
HAZARDOUS CONDITIONS,
INCLUDING CARBON MONOXIDE
POISONING THAT COULD RESULT
IN PERSONAL INJURY OR DEATH.

DO NOT, UNDER ANY
CIRCUMSTANCES, CONNECT
RETURN OR SUPPLY DUCTWORK
TO OR FROM ANY OTHER HEAT
PRODUCING DEVICE SUCH AS A
FIREPLACE INSERT, STOVE, ETC.
DOING SO MAY RESULT IN FIRE,
CARBON MONOXIDE POISONING,
EXPLOSION, PERSONAL INJURY
OR PROPERTY DAMAGE.

BLOWER AND BURNERS MUST
NEVER BE OPERATED WITHOUT
THE BLOWER DOOR IN PLACE.
THIS IS TO PREVENT DRAWING
GAS FUMES (WHICH COULD
CONTAIN HAZARDOUS CARBON
MONOXIDE) INTO THE HOME THAT
COULD RESULT IN PERSONAL
INJURY OR DEATH.

UPFLOW UNITS

1. Position the unit to minimize long runs

or runs with many turns and elbows.

2. Open the return air compartment.

a. If using side or back return air,

install the bottom base.

A SOLID METAL BASE PLATE, SEE
TABLE 1, OR FURNACE CLEARANCE
LABEL FOR PART NUMBER MUST
BE IN PLACE WHEN THE FURNACE
IS INSTALLED WITH SIDE OR REAR
AIR RETURN DUCTS. FAILURE TO
INSTALL A BASE PLATE COULD
CAUSE PRODUCTS OF
COMBUSTION TO BE CIRCULATED
INTO THE LIVING SPACE AND
CREATE POTENTIALLY
HAZARDOUS CONDITIONS,
INCLUDING CARBON MONOXIDE
POISONING OR DEATH.

b. Cut an opening in the side or back.

The opening should be cut the full
width of the knockouts on the unit.

NOTE:  

Where the maximum air flow is

1800 CFM or more, both sides or the
bottom must be used for return air.

3. Connect the return duct or return air

cabinet to the unit. Make the
connection air tight to prevent
entraining combustion gases from an
adjacent fuel-burning appliance.

4.

Be sure to have adequate space
for the unit filter.

NOTE: 

DO NOT take return air from

bathrooms, kitchens, furnace rooms,
garages, utility or laundry rooms, or
cold areas.

5. If summer air conditioning is desired,

position the indoor coil on the top of
the unit. Insure that no air can bypass
this coil.

6. Connect the supply air plenum to the

furnace plenum opening.

DOWNFLOW UNITS

1. Position the unit to minimize long runs

or runs with many turns and elbows.

2. If summer air conditioning is desired,

position the indoor coil on the bottom
of the unit. Insure that no air can
bypass this coil.

3. If installing on a combustible floor 

and

not using an air conditioning
plenum, 

install the special

combustible floor base. See Figure 4.

THE DOWNFLOW FURNACE DESIGN
IS CERTIFIED FOR INSTALLATION
ON A NON-COMBUSTIBLE FLOOR.
USE THE SPECIAL BASE SPECIFIED
ON THE FURNACE CLEARANCE
LABEL. FAILURE TO INSTALL THE
SPECIAL BASE MAY RESULT IN
FIRE, PROPERTY DAMAGE,
PERSONAL INJURY OR DEATH. THIS
SPECIAL BASE IS SHIPPED FROM
THE FACTORY AS AN ACCESSORY.

4. Connect the furnace to the supply air

plenum.

5. Connect the return air ducting to the

return air opening at the top of the
unit. Make the connection air tight to
prevent entraining combustion gases
from an adjacent fuel-burning
appliance.

6.

Be sure to have adequate space
for the unit filter.

NOTE: 

DO NOT take return air from

bathrooms, kitchens, furnace rooms,
garages, utility or laundry rooms, or
cold areas.

HORIZONTAL UNITS

1. Position the unit to minimize long

runs or runs with many turns and
elbows.

2. If summer air conditioning is desired,

position the indoor coil on the supply
air side of the unit. Insure that no air
can bypass this coil.

8

FIGURE 4
COMBUSTIBLE FLOOR BASE

WARNING

!

WARNING

!

WARNING

!

WARNING

!

Summary of Contents for 1x2000

Page 1: ...e WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Do not return to your home until authorized by the gas supplier or fire department DO NOT RELY ON SMEL...

Page 2: ...und to electrical panel DC microamp µA flame signal hot surface ignition units Correct control voltage Measure and set heat anticipator amperage Air conditioning low voltage wires connected to terminals Y C not with wire nuts VENTING Correct vent pipe diameter and length according to AGA GAMA tables Vent connection size Correct venting material according to AGA GAMA tables Correct lining for mason...

Page 3: ...ecautions 1 Installation Check List 2 Location Requirements and Considerations 4 Combustion and Ventilation Air 10 Vent Pipe Installation 13 Gas Supply and Piping 16 Electrical Wiring 19 Accessories 20 Air Flow 26 Maintenance 29 Troubleshooting 31 Wiring Diagram 33 Installation Instructions are updated on a regular basis This is done as product changes occur or if new information becomes available...

Page 4: ...oring or by using support brackets See Figure 1 8 IMPORTANT If installing in a utility room be sure the door is wide enough to a allow the largest part of the furnace to pass or b allow any other appliance such as a water heater to pass CLEARANCE ACCESSIBILITY The design of forced air furnaces with input ratings as listed in the tables on the following pages are certified by A G A Laboratories and...

Page 5: ...150 lbs CLEARANCE TO COMBUSTIBLE MATERIAL INCHES UPFLOW AND UPFLOW HORIZONTAL MODELS TOP LEFT SIDE FRONT RIGHT SIDE BOTTOM 241 2 2613 16 265 8 2411 32 2411 32 19 32 9 16 247 16 281 16 265 8 143 8 111 2 34 13 8 DIA 23 15 20 D 7 8 DIA 7 8 DIA 19 32 19 32 3 4 143 8 111 2 11 4 2317 32 C GAS CONNECTION ELECTRICAL CONNECTION OPTIONAL RETURN AIR CUTOUT EITHER SIDE FOR USE WITH EXTERNAL SIDE FILTER FRAME ...

Page 6: ...8 0 0 0 1 6 6 120 lbs 12 241 2 2311 32 155 8 23 5 8 0 0 0 1 3 6 140 lbs 15 241 2 2311 32 155 8 23 5 8 0 0 0 1 3 6 150 lbs TOP BOTTOM 241 2 193 4 C A B D LOW VOLTAGE GAS CONNECTION ELECTRIC CONNECTION E S A R A 265 8 2613 16 63 16 203 8 233 8 5 8 5 8 3 4 5 8 34 233 8 203 8 63 16 247 16 265 8 201 8 281 16 7 8 DIA 1 2 DIA 13 8 DIA May require 3 to 4 or 3 or 5 adapter May be 0 with type B vent May be ...

Page 7: ...e furnace If this device is manually operated it must have a means to prevent operation of the other unit unless the damper is in the full heat or cool position IMPORTANT One of the most common causes of forced air heating problems is insufficient return air to the furnace The return system area should be approximately equal to or greater than the area of the warm air discharge CONSULT LOCAL CODES...

Page 8: ...in the side or back The opening should be cut the full width of the knockouts on the unit NOTE Where the maximum air flow is 1800 CFM or more both sides or the bottom must be used for return air 3 Connect the return duct or return air cabinet to the unit Make the connection air tight to prevent entraining combustion gases from an adjacent fuel burning appliance 4 Be sure to have adequate space for...

Page 9: ... and 2 or applicable provisions for the local building codes and not obstructed so as to prevent the flow of air to the furnace IMPORTANT Air for combustion and ventilation must not come from a corrosive atmosphere Any failure due to corrosive elements in the atmosphere is excluded from warranty coverage The following types of installation may require OUTDOOR AIR for combustion due to chemical exp...

Page 10: ...ACE LOCATED IN A CONFINED SPACE A confined space any space smaller than shown above as unconfined must have openings into the space which are located in accordance with the requirements set forth in the following subsections A and B Size the openings by how they are connected to the heated area or to the outside and by the input of all appliances in the space If confined space is within a building...

Page 11: ...R USING A HORIZONTAL INLET OUTLET Method 2 One permanent opening located within 12 inches of the top of the enclosure shall be permitted where the equipment has clearances of at least 1 inch from the sides and back and 6 inches from the front of the appliance The opening shall directly communicate with the outdoors or communicate through a vertical or horizontal duct to the outdoors or spaces craw...

Page 12: ...ITHER RIGID OR SUITABLE FLEXIBLE CONSTRUCTION THAT CARRIES A U L LISTING COMMON VENTING IS ALLOWED WITH VERTICAL B 1 VENT SYSTEMS AND LINED MASONRY CHIMNEYS FOLLOW THE NATIONAL FUEL GAS CODE ANSI Z223 1 AND OR THE NATURAL GAS INSTALLATION CODE CAN CGA B149 1 2 FOR PROPER INSTALLATION PRACTICES IMPORTANT WHEN COMMON VENTING USE B 1 VENT CONNECTORS SINGLE WALL VENT CONNECTORS TO B 1 VENT OR MASONRY ...

Page 13: ... 8 feet from a vertical wall or similar obstruction Terminate all other gas vents not less than 2 feet above the highest point where they pass through the roof and at least 2 feet higher than any portion of a building within 10 feet 2 Terminate a type B gas vent at least 5 feet in vertical height above the highest connected equipment draft hood or flue collar DO NOT CONNECT THIS FURNACE TO A CHIMN...

Page 14: ...ppliances the venting is likely to be too large to properly vent the remaining attached appliances The following steps shall be followed with each appliance that remains connected to the common venting system while the other appliances that remain connected to the common venting systems are not in operation NOTE WHEN THE VENT TABLE PERMITS MORE THAN ONE DIAMETER OF PIPE FOR A CONNECTOR OR VENT THE...

Page 15: ...ne and manual gas valve must be adequate in size to prevent undue pressure drop and never smaller than the pipe size to the com bination gas valve on the furnace Refer to Table 2 for the recom mended pipe size for natural gas and Table 3 for LP gas pipe sizes WARNING HORIZONTAL IMPORTANT It is permissible to run flexible gas connector inside the unit to a piece of black pipe Install a ground joint...

Page 16: ...0 Equivalent length of pipe 60 ft 3 4 IPS required SETTING GAS PRESSURE The maximum gas supply pressure to the furnace should be 10 5 w c natural gas or 13 w c LP gas The minimum supply gas pressure to the gas valve should be 5 w c natural gas or 11 w c LP gas A properly calibrated U Tube manometer is required for accurate gas pressure measurements Supply Gas Pressure Measurement A line pressure t...

Page 17: ...g 5 Turn the gas supply back on and check for proper operation and manifold pressure 6 Attach the notice label alerting the next service technician that the furnace has been converted to LP gas 17 RATING PLATE ELEVATION INPUT BTU HR 0 TO 7 999 FT 8 000 FT AND ABOVE NATURAL GAS HEATING VALUE 1 000 BTU FT3 SPECIFIC GRAVITY 0 62 MANIFOLD PRESSURE 3 5 W C 50 000 42 43 75 000 42 43 100 000 42 43 125 00...

Page 18: ...ale Ontario Canada M92 1R3 WARNING WARNING ELECTRICAL WIRING ELECTRONIC NIGHT SETBACK THERMOSTATS ARE COMPATIBLE WITH THE FURNACE CONTROL SYSTEM SOME MAY REQUIRE AN ISOLATION RELAY If an isolation relay is needed install it as close to the control board as possible Use a single pole single throw relay with a 24 volt operating coil The relay contacts should be designed for 24 volt loads Connect one...

Page 19: ...e second control respectively d Both control boards must have Twin switch 3 in ON position e Adjust the heat anticipator current to 0 15 amps NOTE Leave Switch 4 in the OFF position It does not affect the twinning operation HIGH ALTITUDE KIT Models with inputs over 50 000 btu hr installed at altitudes of 5 000 feet and above require a low fire pressure switch change These may be ordered under Opti...

Page 20: ...20 FIGURE 16 UTEC NO 1095 100 CONTROL BOARD TWINNING CONNECTION SINGLE STAGE OPERATION I685 ...

Page 21: ...21 FIGURE 17 UTEC NO 1095 100 CONTROL BOARD TWINNING CONNECTION TWO STAGE OPERATION I684 ...

Page 22: ...will run for 60 seconds on low stop momentarily and then restart b The ignition process goes through one more try on low fire If this fails there are two tries on high fire with a 30 second interpurge between trials During high fire ignition attempts the inducer steps to high speed the high pressure switch closes both pressure switch closes both pressure switches are now closed and the gas valve s...

Page 23: ...if the required HEAT and COOL speeds are the same IMPORTANT Do not connect any leads to the HEAT or COOL terminals if the HEAT COOL terminal is used 5 M1 Connect unused motor lead 6 M2 Connect unused motor lead The unit comes from the factory set to stop the blower 120 seconds after the thermostat is satisfied in heating and 45 seconds after the thermostat is satisfied in cooling This timing can b...

Page 24: ...egulators Set the furnace manifold pressure at 10 W C at the gas control valve For elevations up to 8 000 feet rating plate input ratings apply For high altitudes elevations 8 000 and over the orifice spud must be changed To change orifice spuds 1 Shut off the manual main gas valve and remove the gas supply piping from the gas valve RATING PLATE ELEVATION INPUT BTU HR 0 TO 7 999 FT 8 000 FT AND AB...

Page 25: ...he thermometer in the supply air duct stops rising approximately five minutes subtract the return air temperature from the supply air temperature The difference is the temperature rise 5 Compare the measured temperature rise to the approved temperature rise range listed on the furnace name plate See Figure 21 If the measured temperature rise is above the approved range the air flow is too low More...

Page 26: ...5 1515 1480 1440 150 000 11 x 10 3 4 MED HI 2010 1985 1960 1915 1850 1800 1730 HI 2340 2275 2215 2145 2080 2010 1940 MODEL BTU 1 2 3 4 5 6 7 BLOWER SIZE MOTOR H P BLOWER SPEED CFM AIR DELIVERY EXTERNAL STATIC PRESSURE INCHES WATER COLUMN LOW 735 715 690 660 635 605 575 MED LO 1025 1015 995 975 955 930 905 50 000 11 x 6 1 2 MED HI 1185 1165 1150 1130 1100 1075 1040 HI 1345 1330 1310 1295 1265 1235 ...

Page 27: ...cause of inadequate combustion air DO NOT reset the flame roll out switch without taking corrective action to assure that an adequate supply of combustion air is maintained under all conditions of operation Replace this switch only with the identical replacement part PRESSURE SWITCHES This furnace has two pressure switches for sensing a blocked vent condition One is for high pressure and the other...

Page 28: ...nt of filter and frame to get proper width for a side filter TABLE 5 FILTER SIZES 28 MAINTENANCE WARNING FIGURE 23 RESIZING FILTERS FRAME NOTE Some filters must be resized to fit certain units and applications SOLID BOTTOM MAY BE ORDERED AS AN OPTION FROM THE FACTORY UPFLOW FILTER SIZES FURNACE INPUT BOTTOM SIDE QUANTITY WIDTH BTUH SIZE SIZE 14 50 121 4 X 25 153 4 X 25 1 171 2 75 100 153 4 X 25 15...

Page 29: ...29 FIGURE 25 FILTER RETAINING RODS SIDE RETURN FIGURE 26 DOWNFLOW FILTER INSTALLATION ...

Page 30: ...and set the thermostat lever to the lowest temperature 2 Shut off the gas supply to the furnace either at the meter or at a manual valve in the supply piping 3 Remove burner door On downflow models the blower door and burner door flange must also be removed 4 Disconnect gas supply piping from gas valve 5 Remove screws 4 connecting the burner tray to the center panel 6 Disconnect wiring to the gas ...

Page 31: ... FIGURE 27 INTEGRATED FURNACE CONTROL IFC TROUBLESHOOTING GUIDE FOR UTEC 1095 101 31 ...

Page 32: ...32 ...

Page 33: ... FIGURE 28 UTEC 1095 101 INTEGRATED FURNACE CONTROL 33 ...

Page 34: ...34 ...

Page 35: ...35 ...

Page 36: ...36 CM 599 Rheem Manufacturing Company Air Conditioning Division Fort Smith Arkansas ...

Reviews: