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506892-01

Page 35 of  64

Issue 1251

On-Board Link W914 Dehum or Harmony (R to DS)

On-board link W914, is a clippable connection between
terminals R and DS on the integrated control.  W914 must
be cut when the furnace is installed with a thermostat which
features humidity control.  If the link is left intact the PMW
signal from the control will be blocked and also lead to
control damage.  Refer to Table 19 for operation sequence
in applications including A80DS2V, a  thermostat which
features humidity control and a single- speed outdoor Unit.
Table 20 gives the operation sequence in applications with
a two-speed outdoor unit.

On-Board Link W951 Heat Pump (R to O)

On-board link W951 is a clippable connection between
terminals R and O on the integrated control.  W951 must
be cut when the furnace is installed in applications which
include a heat pump unit and a thermostat which features
dual fuel use.  If the link is left intact, terminal “O” will remain
energized eliminating the HEAT MODE in the heat pump.

On-Board Links

NOTE:

  

In Comfort Sync™ systems with a conventional

outdoor unit (non-communicating), the on-board clippable
links must be set to properly configure the system.

On-Board Link W915 2 Stage Compr (Y1 to Y2)

On-board link W915 is a clippable connection between
terminals Y1 and Y2 on the integrated control.  W915 must
be cut if two-stage cooling will be used.  If the Y1 to Y2 link
is not cut, 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 listing of LED codes is provided in the Diagnostic Codes
Section.

Diagnostic Push Button (Figure 26)

The diagnostic push button is located adjacent to the seven-
segment diagnostic LED.  This button is used to enable the
Error Code Recall “E” mode and the Flame Signal “F” mode.
Press the button and hold it to cycle through a menu of
options.  Every five seconds a new menu item will be
displayed.  When the button is released, the displayed item
will be selected.  Once all items in the menu have been
displayed, the menu resumes from the beginning until the
button is released.

Error Code Recall Mode

Select “E” from the menu to access the most recent 10
error codes.  Select “c” from the Error Code Recall menu to
clear all error codes. Button must be pressed a second time
while “c” is flashing to confirm command to delete codes.
Press the button until a solid ”=” is displayed to exit the
Error Code Recall mode.

Flame Signal Mode

Select “F” from the menu to access the flame signal mode.
The integrated control will display the flame current on 7
segment LED in  micro amps (uA).

Flame signal mode is exited after the following:

Power is reset

Pressing and holding push button until 3 horizontal lines
“=” are displayed

10 minutes of entering the flame sense mode.

Carefully review all configuration information provided.
Failure to properly set DIP switches, jumpers and on-
board links can result in improper operation!

  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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