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506892-01

Page 6 of  64

Issue 1251

General

These instructions are intended as a general guide and do
not supersede local codes in any way.  Consult authorities
having jurisdiction before installation.

In addition to the requirements outlined previously, the
following general recommendations must be considered
when installing one of these furnaces:

Place the furnace as close to the center of the air
distribution system as possible.  The furnace should also
be located close to the chimney or vent termination point.

Do not install the furnace where drafts might blow directly
into it.  This could cause improper combustion.

Do not block the furnace combustion air openings with
clothing, boxes, doors, etc.  Air is needed for proper
combustion and safe unit operation.

When the furnace is installed in an attic or other insulated
space, keep insulation away from the furnace.

NOTE:

 

 

The Commonwealth 

of 

Massachusetts stipulates

these additional requirements:

Gas furnaces shall be installed by a licensed plumber
or fitter only.

The gas cock must be “T handle” type.

When a furnace is installed in an attic, the passageway
to and service area surrounding the equipment shall be
floored.

Combustion, Dilution & Ventilation Air

In the past, there was no problem in bringing in sufficient
outdoor air for combustion. Infiltration provided all the air
that was needed.  In today’s homes, tight construction
practices make it necessary to bring in air from outside for
combustion.  Take into account that exhaust fans, appliance
vents, chimneys, and fireplaces force additional air that could
be used for combustion out of the house.  Unless outside
air is brought into the house for combustion, negative
pressure (outside pressure is greater than inside pressure)
will build to the point that a downdraft can occur in the furnace
vent pipe or chimney.  As a result, combustion gases enter
the living space creating a potentially dangerous situation.

In the absence of local codes concerning air for combustion
and ventilation, use the guidelines and procedures in this
section to install these furnaces to ensure efficient and safe
operation.  You must consider combustion air needs and
requirements for exhaust vents and other gas appliances.

A portion of this information has been reprinted with
permission from the National Fuel Gas Code (ANSI-Z223.1).
This reprinted material is not the complete and official
position of the ANSI on the referenced subject, which is
represented only by the standard in its entirety.

The State of California has determined that this product
may contain or produce a chemical or chemicals, in very
low doses, which may cause serious illness or death.  It
may also cause cancer, bith defects or other reproductive
harm.

  WARNING

  CAUTION

DO NOT install the furnace in a corrosive or
contaminated atmosphere.  Meet all combustion and
ventilation air requirements, as well as all local codes.

Insufficient combustion air can cause headaches,
nausea, dizziness or asphyxiation.  It will also cause
excess water in the heat exchanger resulting in rusting
and premature heat exchanger failure.  Excessive
exposure to contaminated combustion air will result in
safety and performance related problems.  Avoid
exposure to the following substances in the combustion
air supply:

Permanent wave solutions
Chlorinated waxes and cleaners
Chlorine base swimming pool chemicals
Water softening chemicals
De-icing salts or chemicals
Carbon tetrachloride
Halogen type refrigerants
Cleaning solvents (such as perchloroethylene)
Printing inks, paint removers, varnishes, etc.
Hydrochloric acid
Cements and glues
Antistatic fabric softeners for clothes dryers
Masonry acid washing materials

  WARNING

Содержание A80DS2V

Страница 1: ...ergrated Control Board 32 Blower Data 38 Unit Start Up 40 Gas Pressure Adjustment 41 Proper Combustion 41 High Altitude 42 Other Unit Adjustments 43 Heating Sequence of Operation 43 Service 45 Planned...

Страница 2: ...2V Unit Dimensions inches mm FRONT VIEW SIDE VIEW TOP VIEW Model A 368 14 1 2 A80DS2V B C in mm in mm in mm 340 13 3 8 330 13 533 21 504 19 7 8 495 19 1 2 D in mm 203 8 121 4 3 4 090 16 110 20 070 12...

Страница 3: ...506892 01 Page 3 of 64 Issue 1251 EXPANDED VIEW Figure 1...

Страница 4: ...on the unit nameplate and in Figure 14 Accessibility and service clearances must take precedence over fire protection clearances NOTE For installation on combustible floors the furnace shall not be in...

Страница 5: ...replaced upon construction completion The input rate and temperature rise must be set per the furnace rating plate One hundred percent 100 outdoor air must be provided for combustion air requirements...

Страница 6: ...re will build to the point that a downdraft can occur in the furnace vent pipe or chimney As a result combustion gases enter the living space creating a potentially dangerous situation In the absence...

Страница 7: ...aining the furnace the return air must be handled by ducts which are sealed to the furnace casing and which terminate outside the space containing the furnace This is especially important when the fur...

Страница 8: ...gs shall each have a free area of at least one square inch per 4 000 Btu 645 mm per 1 17 kW per hour of the total input rating of all equipment in the enclosure Inlet Air from Crawlspace Outlet Air to...

Страница 9: ...ng strips on combustible flooring base to make sure they are properly glued and positioned 4 Lower supply air plenum into downflow combustible flooring base until plenum flanges seal against the strip...

Страница 10: ...nstallation and service clearances 24 inches 610 mm at unit front The unit must be level NOTE Units with 1 2 hp blower motors are equipped with three flexible legs and one rigid leg See Figure 12 The...

Страница 11: ...n the furnace and the combustible floor Left side requires 3 inches if a single wall vent is used on 14 1 2 inch cabinets or 2 in if a single wall vent is used on 17 1 2 in cabinets Duct System Use in...

Страница 12: ...o the latest edition of National Fuel Gas Code NFPA 54 1 ANSI Z223 1 A fan assisted Category I furnace is an appliance equipped with an integral mechanical means to either draw or force combustion pro...

Страница 13: ...erminate above the roof surface with a listed cap or a listed roof assembly according to the terms of their respective listings and the vent manufacturer s instructions When inspection reveals that an...

Страница 14: ...ng table should be reduced by 10 0 90 x maximum listed capacity 8 The common venting Tables 7 8 9 and 10 were generated using a maximum horizontal vent connector length of 1 1 2 feet 46 m for each inc...

Страница 15: ...on and look for signs of corrosion The existing vent pipe size must conform to these instructions and the provided venting tables If the existing venting system does not meet these requirements it mus...

Страница 16: ...tions with zero lateral lengths are assumed to have no elbows in the vent system For all other vent configurations the vent system is assumed to have two 90 elbows For each additional 90 elbow or equi...

Страница 17: ...Capacity Type B Double Wall Vents with Type B Double Wall Connectors Serving Two or More Category I Appliances Common Vent Capacity Type B Double Wall Vents with Type B Double Wall Connectors Serving...

Страница 18: ...bows in the vent system For all other vent configurations the vent system is assumed to have two 90 elbows For each additional 90 elbow or equivalent for example two 45 elbows equal one 90 elbow beyon...

Страница 19: ...haust fans fireplace dampers and any other gas burning appliances to their previous mode of operation 7 If a venting problem is found during any of the preceding tests the common venting system must b...

Страница 20: ...20 of 64 Issue 1251 NOTE BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET Figure 18 Table 11 Gas Pipe Capacity ft hr m hr Note Capacity given in cubic feet m of gas per hour and based on 0 60 speci...

Страница 21: ...circuit breaker select circuit protection and wire size according to unit nameplate NOTE Unit nameplate states maximum current draw Maximum over current protection allowed is shown in Table 12 2 Hole...

Страница 22: ...INGLE STAGE mode or TWO STAGE mode using a convention thermostat For optimal performance in non communicating applications use a high quality electronic digital thermostat or any other with adjustable...

Страница 23: ...placement of wire shall conform with the temperature limitation for Type T wire 63 F 35 C rise Connect a sufficiently sized wire with ground to the furnace s line voltage connections and ground wire R...

Страница 24: ...506892 01 Page 24 of 64 Issue 1251 Figure 22...

Страница 25: ...506892 01 Page 25 of 64 Issue 1251 Figure 23 Optional Accessories for use with any Comfort SyncTM System...

Страница 26: ...506892 01 Page 26 of 64 Issue 1251 Field Wiring Applications with Conventional Thermostat Not required on all units Table 13A...

Страница 27: ...506892 01 Page 27 of 64 Issue 1251 Field Wiring Applications with Conventional Thermostat continued Table 13B Not required on all units...

Страница 28: ...506892 01 Page 28 of 64 Issue 1251 Table 13C Field Wiring Applications with Conventional Thermostat continued...

Страница 29: ...506892 01 Page 29 of 64 Issue 1251 Field Wiring Applications with Conventional Thermostat continued Table 13D...

Страница 30: ...506892 01 Page 30 of 64 Issue 1251 Figure 24 A80DS2V Schematic Wiring Diagram...

Страница 31: ...506892 01 Page 31 of 64 Issue 1251 Typical A80DS2V Field Wiring Diagram Figure 25...

Страница 32: ...506892 01 Page 32 of 64 Issue 1251 Integrated Control Figure 26...

Страница 33: ...t the blower operates after the heating demand has been satisfied can be adjusted by moving switches 3 and 4 on the integrated control The unit is shipped from the factory with a blower OFF delay of 9...

Страница 34: ...t motor runs at 100 for 45 seconds then ramps down to stop Ramping Option D Motor runs at 100 until demand is satisfied Once demand is met motor ramps down to stop Switches 11 12 and 13 Heating Mode B...

Страница 35: ...the outdoor unit will operate in second stage cooling only Diagnostic LED Figure 26 The seven segment diagnostic LED displays operating status target airflow error codes and other information A full...

Страница 36: ...d Norm al Operation 1 On On On Acceptable 24 High 100 VAC therm ostat energizes Y1 Dehum idification 2 On On On Dem and 0 High 70 and de energizes D on a Call VAC call for de hum idification PRECISION...

Страница 37: ...ion 0 begins when hum idity is call 2 On On On On Dem and VAC High 70 greater than set point therm ostat will try to Dehum idification 0 call ONLY 1 On On On On Dem and VAC High 70 setpoint by allowin...

Страница 38: ...igh 10 695 755 855 985 990 1080 1220 1410 Fa ctory De fa ult 630 685 775 895 900 980 1110 1280 10 565 615 700 805 810 880 1000 1150 760 1 Cooling S pe e d DIP S w itch S e ttings First S ta ge Cooling...

Страница 39: ...ting Spe e d DIP Sw itch Se ttings 24 18 12 6 Factory Default 6 12 18 Low M e dium Low M e dium High 2 High Low M e dium Low M e dium High 2 High 10 985 1140 1295 1330 1405 1625 1845 1900 Fa ctory De...

Страница 40: ...calls for heat the burners will automatically light The ignitor does not get hot when there is no call for heat on units with an automatic ignition system 8 Move gas valve switch to ON position Do not...

Страница 41: ...ing and connect to a manometer to measure supply pressure See Table 22 for supply line pressure Tighten hex screw after measurements have been taken Honeywell Valve A threaded plug on the inlet side o...

Страница 42: ...76 73W 65 73W 32 110 51W 01 68W 76 73W 65 73W 32 High Altitude Natural Gas Orifice Kit Table 25 White Rodgers Gas Valve Conversion Kits High Altitude LP Propane Natural Gas Natural Gas to to Unit Ori...

Страница 43: ...sending a signal to the integrated control The integrated control runs a self diagnostic program and checks high temperature limit switches for normally closed contacts and pressure switches for norm...

Страница 44: ...cond initial ignitor warm up period begins The combustion air inducer continues to opeate at the ignition speed 4 After the 20 second warm up period has ended the gas valve is energized on low fire fi...

Страница 45: ...d external to the unit Filters should be inspected monthly Clean or replace the filters when necessary to ensure that the furnace operates properly Replacement filters must be rated for high velocity...

Страница 46: ...Remove the collector box located behind the combustion air inducer Be careful with the collector box gasket If the gasket is damaged it must be replaced to prevent leakage 6 Disconnect gas supply pipi...

Страница 47: ...screws may cause leaks Inspect gaskets for any damage and replace if necessary 15 Reinstall burner box manifold assembly and burner box cover 16 Reconnect all wires 17 Reconnect top cap and vent pipe...

Страница 48: ...emporarily shut down the furnace until the items can be repaired or replaced Instruct the homeowners to pay attention to their furnace Situations can arise between annual furnace inspections that may...

Страница 49: ...s the Diagnostic Recall Alarm History Diagnostic Recall mode menu options No change displaying error history remains in Diagnostic Recall mode solid exits Diagnostic Recall mode and solid c clears the...

Страница 50: ...506892 01 Page 50 of 64 Issue 1251 Integrated Control Diagnostic Codes...

Страница 51: ...506892 01 Page 51 of 64 Issue 1251 Integrated Control Diagnostic Codes continued...

Страница 52: ...506892 01 Page 52 of 64 Issue 1251 Integrated Control Diagnostic Codes continued...

Страница 53: ...506892 01 Page 53 of 64 Issue 1251 Integrated Control Diagnostic Codes continued...

Страница 54: ...506892 01 Page 54 of 64 Issue 1251 Integrated Control Diagnostic Codes continued...

Страница 55: ...506892 01 Page 55 of 64 Issue 1251 Program Unit Capacity Size Mode...

Страница 56: ...506892 01 Page 56 of 64 Issue 1251 Troubleshooting Heating Sequence of Operation...

Страница 57: ...506892 01 Page 57 of 64 Issue 1251 Troubleshooting Heat Sequence of Operation continued...

Страница 58: ...506892 01 Page 58 of 64 Issue 1251 Troubleshooting Heat Sequence of Operation continued...

Страница 59: ...506892 01 Page 59 of 64 Issue 1251 Troubleshooting Heat Sequence of Operation continued...

Страница 60: ...506892 01 Page 60 of 64 Issue 1251 Troubleshooting Continuous Fan Sequence of Operation...

Страница 61: ...506892 01 Page 61 of 64 Issue 1251 Start Up Performance Check List UNIT SET UP...

Страница 62: ...506892 01 Page 62 of 64 Issue 1251 Start Up Performance Check List continued...

Страница 63: ...mum height of eight 8 feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment The sign shall read in print size no less t...

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