Armstrong ABH 299 Installation & Operation Manual Download Page 42

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Designs, materials, weights and performance ratings are approximate and subject to change without notice. Visit

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*Codes may appear with an A, B, or C as a suffix denoting the number of times the code has appeared since the last Initialization

(INI). Some SLO’s are accompanied by a reduction of the maximum firing rate; A=80%, B=50%, C=30%. After the C suffix appears,

the next code of that kind becomes an HLO (manual reset required).

Table 7.2 BCB Soft Lock Out (SLO) Codes

Code

Cause

Recommended Action

A1*

Excessive pressure differential (

∆

P) on water side of heat exchanger

Check for scaling or blockage on water side of heat exchanger, also check pump

performance. If this SLO is indicated while the unit is firing, it is doing so at a

reduced BTU input; low enough to stay below that maximum

∆

P set point.

B01

Pressure too high at condensate drain connection during Stand By

Look for condensate backing up into combustion side of heat exchanger.

B02

Pressure too high at condensate drain connection during pre-purge

Insure condensate drain system is flowing freely, and vent is clear of obstructions.

Also, be sure the Z-INI has been initiated.

B03

Pressure too low at condensate drain connection during pre-purge

Check for condensate (water) in the condensate neutralizer (if equipped) or

the condensate trap at appliance outlet. If it is dry, add water to form trap. The

appliance also will initiate an auto-filling process for the condensate trap, indicated

on the screen during this operation. Also, be sure the Z-INI has been initiated.

B04

Pressure at flue/condensate sensor is too low

Check flue gas vent connection or sensor connection located at condensate drain

line. Also check for a disconnected or open condensate drain line and last, look for

a leak in the heat exchanger outer casing (behind the insulation).

DW7*

Temperature rise (

∆

T) through heat exchanger is too high

Unit is operating at a reduced BTU input - check for scaling or blockage on water

side of heat exchanger, also check pump performance.

FL05*

Flue gas temperature too high

Unit is burning at a reduced BTU input rate. The cause of the high flue gas

temperature should be investigated and corrected ASAP

FL09*

Fouling of the fire side of the heat exchanger

Unit is burning at a reduced BTU input rate. A combustion side inspection and

cleaning should be scheduled ASAP.

FL13

Flue gas sensor (T5) fault (not connected or open status)

Check the condition of the connectors and wires from the card edge connector at

the board to the flue gas sensor on the appliance.

FL14

Flue gas sensor (T5) fault (short circuit status)

Take an OHM reading at the connector on the flue gas sensor - compare it to the

chart on page 47 replace if out of range.

G01*

Gas supply pressure too low

If this occurs at the beginning of an ignition cycle, this SLO will stay until the

pressure is high enough for proper ignition. If this occurs while the unit is firing,

and it continues to fire, it is doing so at a reduced BTU input low enough to stay

above that minimum pressure set point.

H01

Outlet sensor (T1.1, 1.2) fault (not connected or open status)

Check the condition of the connectors and wires from the card edge connector at

the board to the outlet sensor on the appliance.

H02

Inlet sensor (T2) fault (not connected or open status)

Check the condition of the connectors and wires from the card edge connector at

the board to the inlet sensor on the appliance.

H04

Outlet sensor (T1.1, 1.2) fault (short circuit status)

Take an OHM reading on the outlet sensor - compare it to the chart on page 47

replace if out of range.

H05

Inlet sensor (T2) fault (short circuit status)

Take an OHM reading on the inlet sensor - compare it to the chart on page 47

replace if out of range.

H07/09 Calibration between inlet (T2) and outlet (T1) water temperature

sensors indicates too great a differential.

Test both sensors against the actual temperature and OHMs as shown in the chart

on page 47, replace as required. The appliance will continue to operate, but at a

reduced input until the required correction has been resolved.

H11

High

∆

See Coil Anti-scaling Prevention, page 52

H24*

High Limit set point has been exceeded

Appliance restarts, but at a reduced input; after 3 restarts, the appliance gets

a Manual Lock Out (HLO) and needs the cause resolved immediately. Possible

causes are high

∆

T, temperature setpoint versus high limit setting too close or bad

sensor.

ID01

First INI process data missing

Run the Z-INI; starting Initialization numbers must be tested and the saved for all

connected sensors in a number of conditions.

ID02

EMB EEPROM fault (2)

Reset the fault, cycle power on and off, if the fault reappears, the EMB–EEPROM is

corrupted.

Servicing - continued

Summary of Contents for ABH 299

Page 1: ...Armstrong High Efficiency Water Heaters And Heating Boilers Installation Operations Manual HW 400 EN V2 6 Please read and save these instructions ...

Page 2: ...signed and constructed to withstand conditions expected during normal use 2 Inappropriate use of this product could cause damage to the product and other property It may also result in personal injury or in extreme cases death 3 Installation or maintenance must be carried out in accordance with the instructions provided in this product manual by designated qualified and competent personnel 4 Insta...

Page 3: ...ly could result in loss of warranty and or severe personal injury death and or substantial property damage These instructions are required to be kept with the appliance on the left side in the pocket provided WARNING The vent system is rated and designed to be 2 pipe sealed combustion only PVC SCH 40 or CPVC SCH 40 or 80 or AL 29 4C stainless venting for all models A factory engineered venting sys...

Page 4: ...ve 11 ELECTRICAL 12 Electrical Connection Requirements 12 Internal Wiring Connection 12 Gas Connection 14 Gas Connection 14 B Gas Piping 14 Gas Tables 15 Gas Valve Setup 15 Setting The Maximum Load 17 Setting The Minimum Load 18 Gas Conversion 18 Gas Valve Maintenance Replacement 18 Venting 19 Approved Venting Materials 19 Venting The ABH 19 Inlet Air Vent 25 Venting Runs That Exceed Maximum Combi...

Page 5: ...ABH 40 Placing The ABH Into Normal Operation 40 ABH Hot Controls Hard Lockout Codes 43 To Turn Off Gas To The Appliance 44 Pump Wiring Control 44 To Turn Off Gas To The Appliance 44 Status Readings 45 ABH Sensor Resistance Table 45 Maintenance 46 Periodic Maintenance of Heater and Inspections 46 Annual Inspection 46 Condensate Trap Cleaning Instructions 51 Combustion Chamber Coil Cleaning Instruct...

Page 6: ...internal water temperature drops below 41 F 5 C If the internal water temperature drops to 37 F 2 8 C a burn cycle will be initiated and will shut down as soon as the supply water temperature has reached 50 F 10 C Power and gas must be left on for this function to operate The appliance s primary controller the HOT BCB and BDB boards operate all functions of needed control and safety It contains so...

Page 7: ...gs are approximate and subject to change without notice Visit armstronginternational com for up to date information 7 ABH Hot Controls Special Section BDB Boiler Display Board CDB Cascade Display Board EDB Eeprom Data Board contains all operating parameters of CCB and BCB BCB Boiler Control Board CCB Cascade Control Board General Information continued ...

Page 8: ...ice or repair is required HLO Hard Lock Out Manual needed to energize the boiler HMI Human Machine Interface Hysterese Blocking set temperature offset temperature hysterese is starting temperature for the boiler ICM Interface Cascade Manager with or without WiFi Indirect Tank Sanitary hot water tank with a built in heat exchanger INI Baseline data initialization runs by default every 14 days Lead ...

Page 9: ...ef Valve Condensate Waste Air Vent Condensate Trap Cleaning Point Gas D Inlet B Air In A Left View Outlet C Exhaust Out A Relief Valve General Information continued Figure 1 1 ABH Dimensions Table 1 1 ABH Dimensions Model Width Height Depth A B C D in mm in mm in mm in mm in mm in mm in mm ABH 299 18 9 480 44 9 1140 19 3 490 4 101 1 5 38 1 5 38 75 19 ABH 399 18 9 480 45 2 1148 19 3 490 4 101 2 50 ...

Page 10: ...s set up for liquefied petroleum LP gas some geographic areas follow the Uniform Mechanical Code section 304 6 Liquefied petroleum gas burning appliances shall not be installed in a pit basement or similar location where heavier than air gas might collect Appliances so fueled shall not be installed in a below grade under floor space or basement unless such location is provided with an approved mea...

Page 11: ...r to the lower floors of the building A water heating appliance should always be located in an area with a floor drain or installed in a drain pan suitable for water heating appliances Under no circumstances shall Armstrong Hot Water Inc be held liable for any such water damage whatsoever Pressure Relief Valve Figure 1 4 How To Remove The Front Cover LOCATION Document created with version CONTRACT...

Page 12: ...d internally fused for no more than 3 15 Amps When the unit is first powered on there is a self setting of the electronics for 50 Hz or 60 Hz At every power up the electronics will take a couple of seconds to compare the pulses of the power to the pulses of the crystal which is built into the electronics Then all time related functions are correct no matter the power source The electrical requirem...

Page 13: ...es water temp in a heating loop C Tank Sensor Sensor for indirect or direct DHW An aquastat may also be connected here D 0 10 VDC connect a 0 10 VDC output here to vary set point temperature E Additional Heat Demand dry contacts that will close a thermostat on an extra heater boiler if the boiler is at 100 of capacity F Fault Service alarm bell or light may be connected here to indicate that the b...

Page 14: ...amage the gas valve In the event the gas valve is exposed to a pressure greater than 14 water column the gas valve must be replaced Never use an open flame match lighter etc to check gas connections B Gas Piping The gas piping must be sized for the proper flow and length of pipe to avoid pressure drop Both the gas meter and the gas regulator must be properly sized for the total gas load If you exp...

Page 15: ...5 3854 4 1 234 361 7 1 165 341 4 1 033 302 7 936 274 3 801 235 Based on 0 60 specific gravity for natural gas at 0 5 WC pressure drop DOE standard is 1100 BTU per cubic foot of natural gas 1 Run the gas supply line in accordance with all applicable codes 2 Locate and install manual shut off valves in accordance with state and local requirements Gas Connection Continued Table 3 2 Propane Supply Pip...

Page 16: ... in gas piping at appliance inlet with no load may not exceed 14 wc at any time Minimum load at ignition of a single unit in a multiple unit rack Maximum load all appliances on at full fire that are being tested and any other gas fired equipment on the same gas supply How and where to measure All gas pressure tests must be taken at the gas manifold inlet external to the ABH see diagram Gas pressur...

Page 17: ...made with the appliance door off which will lower the CO2 reading 0 2 See tables above for specific readings When checking or replacing a gas valve the CO2 percentage in the flue gas is the preferred measuring method to insure proper combustion and firing rate CO is used as the temporary alternate Changing incoming air temperature may vary the CO2 setting slightly 0 2 0 6 after initial set up This...

Page 18: ...d Set the minimum load once the maximum load has been set set the fan speed in the service function to the minimum RPM setting In order to set or adjust the minimum load turn the screw 2 for the minimum setting first remove the protective cap Turn the screw clockwise to increase or counter clockwise to decrease the CO2 percentage On the HW 599 you only are allowed to set the gas valve at the right...

Page 19: ...djustment screw 1 see Figure 3 3 normally used for setting maximum flow rate must be turned counterclockwise until it begins to click when turned The screw will not fall out but will be fully retracted at this point This is for Natural Gas for LP gas close the left hand valve clockwise until it is closed down The digital manometer must now be connected to the outlet pressure tapping 4 on the left ...

Page 20: ... the ABH must be CPVC Schedule 40 or 80 or stainless The balance from the penetrated wall to the outside may be PVC Schedule 40 or 80 NOTE If set points exceed 140ºF use of PVC is NOT recommended even though product is approved as such Contact Armstrong Hot Water Inc for further clarification WARNING This vent system will operate with a positive pressure in the vent pipe Do not connect vent connec...

Page 21: ...w references Fig A 12 9 in the National Fuel Gas Code 2009 Exit Terminals of Mechanical Draft and Direct Venting Systems see Figure 4 1 2 Never vent over or under a window or a doorway where the exhaust plume or condensation liquid will cause obtrusive or dangerous conditions Refer to National Fuel Gas Code CAN B149 3 Never install a heat saver or similar product to capture waste heat from exhaust...

Page 22: ...n shall not apply to the separation of the integral outdoor air inlet and flue gas discharge of listed outdoor appliances 2 A through the wall mechanical draft venting system of other than direct vent type shall terminate at least 4 ft 1 2 m below 4 ft 1 2 m horizontally from or 1 ft 300 mm above any door operable window or gravity air inlet into any building The bottom of the vent terminal shall ...

Page 23: ...ht Side View SHOWN OFFSET FOR CLARITY 1 4 ft slope to appliance Front Elevation 8 min 303mm 18 min 457mm 24 max 609mm Front Elevation Multiple Vents 8 min 203 mm 18 min 457mm 24 max 609mm OR VENTING FOR MULTIPLE UNITS with vents all on same horizontal plane spaced at least 8 inches apart and at level of highest unit NOTE Exhaust must not terminate beneath an overhang IMPORTANT NOTE All vent pipes ...

Page 24: ... 8 min 203mm Min 12 305mm above parapet wall if withing 10 wall 18 min 457mm 24 max 609mm 24 609mm or 12 305mm above maximum snow level whichever is greater If air intake is below parapet wall air intake must be min 10 away Exhaust w coupler bird screen Air intake 90 elbow w bird screen Install flanged break point to check non return damper during annual lmaintenance CPVC only 1 4 per foot slope t...

Page 25: ...per ft slope to appliance All horizontal runs must be supported every 24 Exhaust 90º Elbow with Coupler Bird Screen 24 609mm or 12 305mm above Maximum snow level whichever is greater Air intake 90º Elbow with Bird Screen Figure 4 5 Vertical Termination Figure 4 6 Sidewall Termination As long as the boiler room remains under a positive pressure under all operating conditions of the building this is...

Page 26: ...d 20 6m of Plastic PVC Pipe 20 x 1 20 equivalent feet 20 equivalent feet 6m 6m x 3m 6m Required Inlet air in vertical termination 2 90 elbows bird screen 11 equivalent feet 3 3m Required Exhaust coupling 1 equivalent foot 3m Total Friction Loss in equivalent feet 62 equivalent feet 18 9m Heater Removal From An Existing Common Vent System At the time of removal of an existing heater the following s...

Page 27: ...t will shut it down in the event of a condensate drain blockage Please test annually Maximum volume of condensate produced is 11 gallons 41L per hour per 1 000 000 BTU of gas burned CONDENSATE DRAIN FROM HEAT EXCHANGER HOSE CLIP HOSE FROM DRAIN TO TRAP HOSE CLIP CONDENSATE HOSE FROM AIR INLET BLOCKED DRAIN SWITCH HOSE FROM SWITCH TO TRAP DRAIN TRAP CLEAN OUT CAP GROMMET FOR CABINET DRAIN TUBE ATMO...

Page 28: ...dependent for proper efficiency and life expectancy therefore primary secondary piping or use of a low loss header design is always recommended as shown in the Figure 5 1 below Each ABH Heating Boiler System should have an Air Eliminator in addition to the heat exchanger mounted air vent which will remove air from the Hydronic System Always follow good piping practices Observe minimum 1 25 4mm cle...

Page 29: ...en ns si io on ns s a ar re e 1 1 MM DD YY MM DD YY 1 2 1 Custom Dwg No Customer Job name Scale Description Date Drawn Revised by Checked Apv by Revision Description Date Drawn Revised by Checked Apv by Revision AE 09 17 10 5562 Schematic Piping Diagram PID 2 HWH to HSS ET To System From System B 1 CNK B 2 CD CD CD BP 1 BP 2 Make up Water SS TS Supply to SS Return from SS CW LEGEND HWR HWS CD B CN...

Page 30: ... strainer or filtration in an older hydronic system where larger amounts of sediment may be present Periodic cleaning of the strainer may be necessary For boiler water and or odd water systems please make note of these additional guidelines Thoroughly flush the system without boiler connected to remove sediment The high efficiency heat exchanger can be damaged by build up or corrosion due to sedim...

Page 31: ...n valves should be installed on each heater and on the cold and hot water system connections Upon completion of piping fill and properly purge of all air Open all valves and start circulating pump Consult Armstrong Hot Water Inc for specific piping diagrams for your application NOTE Minimum pump selection is based on piping sizes shown above and water hardness not to exceed 15 grains per gallon an...

Page 32: ...lve Air vent Ball Valve with built in Drain Valve Gas cock Floor drain Temperature Sensor LEGEND TS AE 12 17 10 1 LEGEND R Re ef fe er re en nc ce e d di im me en ns si io on ns s a ar re e 1 10 0 A Al ll l d di im me en ns si io on ns s a ar re e 1 1 MM DD YY MM DD YY 1 2 1 Custom Dwg No Customer Job name Scale Description Date Drawn Revised by Checked Apv by Revision Description Date Drawn Revis...

Page 33: ...r Floor drain Cold Water Injection System CWIS CW HWR TWR TWS HWS CW CW HWS HWR TWR DRV HET ET CWIS To System From System Make up Water TS From Tank To Tank AE 12 17 10 1 One Water Heater Schematic To Single Tank With Mixing Valve And CWIS Three Water Heater Schematic To Single Tank R Re ef fe er re en nc ce e d di im me en ns si io on ns s a ar re e 1 10 0 A Al ll l d di im me en ns si io on ns s...

Page 34: ... Return Condensate Drain Water Heater with Stand Storage Tank Expansion Tank Condensate Neutralizer Digital Recirculation Valve Thermometer Pump TS From Tank To Tank Three Water Heater Schematic To Single Tank R Re ef fe er re en nc ce e d di im me en ns si io on ns s a ar re e 1 10 0 A Al ll l d di im me en ns si io on ns s a ar re e 1 1 MM DD YY MM DD YY 1 2 1 Custom Dwg No Customer Job name Sca...

Page 35: ...p TS Ball Valve Check Valve Aquastat Flow Direction Pressure Relief Valve Ball Valve with Built in Drain Valve Gas Cock Drain Valve Air Vent Temperature Sensor Floor Drain Cold Water Injection System CWIS From Tank To Tank CWIS R Re ef fe er re en nc ce e d di im me en ns si io on ns s a ar re e 1 10 0 A Al ll l d di im me en ns si io on ns s a ar re e 1 1 MM DD YY MM DD YY 1 2 1 Custom Dwg No Cus...

Page 36: ...n Valve Gas cock Floor drain Temperature Sensor TS LEGEND TS From Tank WH 1 CNK WH 3 WH 2 CD CD CD CD To Tank Three Water Heater Schematic To Two Tanks R Re ef fe er re en nc ce e d di im me en ns si io on ns s a ar re e 1 10 0 A Al ll l d di im me en ns si io on ns s a ar re e 1 1 MM DD YY MM DD YY 1 2 1 Custom Dwg No Customer Job name Scale Description Date Drawn Revised by Checked Apv by Revisi...

Page 37: ... appear in the display at this time If a fault code appears correct the fault before operating The ABH will now run its pre purge and ignition cycles then begin heating which will be indicated by the orange flame in the lower right corner of the display Lighting Instructions For Your Own Safety Read Before Operating 1 This appliance does not have a pilot light It is equipped with an ignition devic...

Page 38: ... varying from end user installer advanced and factory levels The display can show either F or C set in the setup menu then display options Sequence Of Operation 1 When power is first applied to the control the control display will read the temperature Setpoint The control will initially run through a self diagnostic routine and then go into its operating mode If there is no call for heat the syste...

Page 39: ...t Control In Load Control the voltage signal controls the burner firing rate In Set Point Control the voltage signal controls the temperature set point of the appliance This is similar to how the appliance is controlled when operating without an outside signal Setting up Direct Control There are three steps required to set up this mode of operation First connect the incoming voltage signal to pins...

Page 40: ...ce in Load Control mode The operational range of a 399 x fan is 25 100 0 0 9V Appliance off 1 0V 25 Fan speed 1 3V 27 Fan speed 3 modulation 4 0V 49 Fan speed 33 modulation 6 8V 72 Fan speed 64 modulation 8 9V 91 Fan speed 88 modulation 10 0V 100 Fan speed 100 modulation Each volt 8 33 fan speed or 11 11 modulation Set Point Control mode PS18 2 When a 0 10VDC input is used for Set Point Control th...

Page 41: ...e S2 sensor is connected CCB03 Sensor S3 fault Check that the S3 sensor is connected CCB04 Sensor S4 SZ1 fault Check that the S4 SZ1 sensor is connected CCB05 Sensor S5 SZ2 fault Check that the S5 SZ2 sensor is connected CCB06 Sensor S6 fault Check that the S6 sensor is connected CCB07 Sensor SZ3 fault Check that the SZ3 sensor is connected CCB08 Sensor zone 4 fault Check that the zone 4 sensor is...

Page 42: ...cted ASAP FL09 Fouling of the fire side of the heat exchanger Unit is burning at a reduced BTU input rate A combustion side inspection and cleaning should be scheduled ASAP FL13 Flue gas sensor T5 fault not connected or open status Check the condition of the connectors and wires from the card edge connector at the board to the flue gas sensor on the appliance FL14 Flue gas sensor T5 fault short ci...

Page 43: ...to the chart on page 47 replace if out of range ID20 A Outdoor sensor T4 fault not connected or open status Check the condition of the connectors and wires from the card edge connector at the board to the terminal strip to the outdoor air sensor ID20 B Outdoor sensor T4 fault short circuit status Take an OHM reading on the wires from the outdoor air sensor compare it to the chart on page 47 replac...

Page 44: ... is the general culprit G03 Gas pressure too high during a burn cycle Correct the cause of the high gas pressure either adjust regulator or replace and repair as required maximum allowed by code is 14 w c H15 H16 Water temperature limit set point exceeded Check set point s sensors pumping etc Correct cause of high water temperature H24 Water Temperature Manual Reset High Limit set point exceeded C...

Page 45: ...been through multiple tests and checks including trying to ignite at different inputs to avoid this shut down Combustion related items must be checked including air gas ratio ignition cable and igniter IG4 IG5 Too many restarts or relights after no flame Appliance has been through multiple tests and checks including trying to ignite at different inputs to avoid this shut down Combustion related it...

Page 46: ...ensor Resistance Table Temperature O F Resistance Ohm Temperature O C Resistance Ohm 32 32550 0 32550 41 25340 5 25340 50 19870 10 19870 59 15700 15 15700 68 12490 20 12490 77 10000 25 10000 86 8059 30 8059 95 6535 35 6535 104 5330 40 5330 113 4372 45 4372 122 3605 50 3605 131 2989 55 2989 140 2490 60 2490 149 2084 65 2084 158 1753 70 1753 167 1481 75 1481 176 1256 80 1256 185 1070 85 1070 194 915...

Page 47: ...d materials An inspection should cover at a minimum the following areas Inspect all fittings controls and connections for leaks damage or fouling Fire side Heat exchanger Burner and ignitor Burner door and rear wall insulation Drain system components Hoses clamps Trap assembly Condensate neutralizer Test all safeties and operating controls Water side temperature rise T test Inspection And Cleaning...

Page 48: ...rable damage to the appliance Both of these must be replaced Maintenance continued Check the fire side of the heat exchanger only clean loose residue from the heat exchanger coil use a vacuum cleaner and nylon brush and do not push the residue between the openings of the coils if at all possible as this may impede the flow of the products of combustion Use inspection mirror to check all heat passa...

Page 49: ...will be less susceptible to breakage during adjustment The metal surface of the electrodes should also be carefully cleaned with emery cloth NOTE Do not make any adjustments or cleaning with the electrode still mounted to the burner door as damage to refractory may result Dismantle the air gas mixing plate or chamber on the suction side of the fan and check for fouling If required clean the fan bl...

Page 50: ...just the CO2 percentage as required Fire the appliance on minimum output and measure and adjust the CO2 percentage as required If there are an unusual number of G01 faults or if combustion is off significantly gas supply pressure must be verified at static no load and full building load conditions See Table 3 3 page 17 for specific settings Inspect intake and exhaust screens at the termination poi...

Page 51: ...s P total P1A P1F 0 32 0 4 0 72 wc Calculations are done with All boilers at high fire Water temperature 160 180ºF gives the hottest flue gasses All readings must be taken with boiler front cover installed Doing the measurements under these conditions will give the most accurate results There may be minor differences between appliances Use of a static pressure tip for measurement is also recommend...

Page 52: ...ndensate and it may be hot 3 Remove the condensate clean out cap and be sure the bucket is under the open drain trap assembly to catch the debris and water 4 Rinse out the clean out cap in a sink to remove any dirt or buildup that may have accumulated Maintenance continued 5 Condensate drain assembly should now be checked for non restricted flow throughout the entire assembly 6 Reinstall the clean...

Page 53: ... 3 Using a spray bottle filled with water or a hose under low pressure to avoid water spraying on electronics be sure to cover them to protect against water damage spray the coils liberally making sure the water penetrates and funnels down through the condensate hose If the condensate hose is blocked try to knock any debris loose with a small screwdriver Replace hose if not completely clean 4 If s...

Page 54: ...S 40 Cleaner to the system based on total system water volume Follow the cleaning instructions on the bottle Open the drain valve to let out all the water from the appliance and circulate Fernox DS 40 Cleaner in reverse of normal flow to flush out any build up that may have occurred in the coils Flush the system of all the Fernox DS 40 After the system has been flushed add the Fernox F1 Inhibitor ...

Page 55: ...e found on the control panel on the front of the appliance Figure 8 3 ABH Control Panel Looking at the controls on the front of the appliance 1 POWER on off switch 2 SETPOINT knob temperature control and fan speed control knob during service mode Standby Status Normal Operating Status Maintenance continued DANGER It is extremely important that you check for leaks when reconnecting the gas valve an...

Page 56: ...tion 56 BOILER CONTROL BOARD BCB SCREENS In the main screen it is possible to see Hamilton logo Set point value Type of system icons Date and time Labels for navigation through the controller STATUS SET POINT HISTORY SETUP Information and tips Alarms soft lockout yellow and hard lockout red Navigation and set are allowed by the arrow OK and BACK buttons SLO Warning Stand By Mode Burner On flame ic...

Page 57: ...into HISTORY menu where a new item ACTUAL FAULT will be displayed In case a boiler RESET is required HLO fault it is possible to activate the RESET procedure entering the ACTIVE FAULT page and selecting the corresponding item When the outdoor reset function is active this page shows the calculated set point value Going into the SET POINT page it is possible to change the TW parameter in order to a...

Page 58: ...m for up to date information 58 NOTE the behavior described is referred to the BCB board not working as a cascade module So the only possible configuration modes are the following only central heating central heating with Indirect hot water direct hot water Depending on the active configuration the corresponding items will be displayed INI Data Set Point page Set Up menu Ch Set Point value Time an...

Page 59: ...t 3 times this happens there will be a reduction of the maximum firing rate The fault will be accompanied by either an A B or C suffix indicating a maximum firing rate of 80 50 or 30 respectively The control will go into hard Lockout after the C suffix is achieved and have to be manually reset Once the heat exchanger has been acid cleaned contact the factory for instructions on resetting the unit ...

Page 60: ...d 2 APPROVED CARBON MONOXIDE DETECTORS Each carbon monoxide detector as required in accordance with the above provisions shall comply with NFPA 720 and be ANSI UL 2034 listed and IAS certified 3 SIGNAGE A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight 8 feet above grade directly in line with the exhaust vent terminal ...

Page 61: ...iddle East Africa China Pacific Rim armstronginternational com Designs materials weights and performance ratings are approximate and subject to change without notice Visit armstronginternational com for up to date information 61 Parts Breakdown ...

Page 62: ... 14 COVER VENTURI BURNER AIR GAS MXG HW599 D105629 15 COUPLING RDCR 1 4X1 8 NPT 150 SS CF8 D106932 16 TRANSDUCER PRESS 1 4 MNPT 0 1 2 PSI D104963 SWITCH DIF PRESS M20 CONN CNDS HW79 599 NOT SHOWN D113636 17 BRACKET PROTECTION HW299 599 CS TB G30 BOILER CTRL D107939 18 DISPLAY BOILER BRD D107557 19 SWITCH RKR ON OFF 20A 250V DPST D108302 20 PANEL DWR HW299 599 D107543 21 TRANSFORMER IGNIT D104904 2...

Page 63: ...10 KOHM NEGATIVE D104921 43 FLUE GAS OUTLET ASSEMBLY HW299 399 VNT 94101 A FLUE GAS OUTLET ASSEMBLY HW599 VNT 94102 A 44 ABH299 399 DUO VLV NON RTN D113615 ABH 599 DUO VLV NON RTN D104923 45 GROMMET 1 875 OD SILICONE AIR VENT TUBE BLACK D104189 46 ROD TBE 0 54 X 9 73 SS MT304 HW299 599 AIR VENT D108337 47 VENT AIR 1 8 NPT AUTOMATIC BRS D104903 48 PANEL REAR ABH299 399HOT D114534 HW599 ABH REAR PAN...

Page 64: ...00 70 KIT FLG 3 4 D104922 71 VALVE GAS 1 2 BSPT HW79 599 D108737 72 NIPPLE HEX 1 2 MNPTXNPSL X 1 BRS D104271 73 ADAPTER RDCR 3 4 CMP X 1 2 FNPT BRS HW599 GAS D104275 74 MANIFOLD GAS INL HW599 D105002 75 TRANSDUCER PRESS 1 4 MNPT 1 PSI D104962 76 GASKET 2 8 OD EPDM 60 DURO ABH 559 GAS MAN D104190 77 BURNER INL HW79 399 AIR GAS D112959 78 BURNER PIPE HW299 70MM X 210MM D113711 BURNER PIPE HW399 70MM...

Page 65: ...EME 03 L1 Main Panel Main Power Terminal Strip 1 2016 0 0 114 User data 2 1 0 Brian Brian 11 15 2017 10 10 2017 Updated wire colors AWG X1 1 2 3 4 120VAC L1 120VAC L2 Neutral Ground 240VAC Split Phase Customer Supplied X2 1 2 3 4 X3 1 2 3 4 CR1 A1 A2 03 CR1 12 11 14 42 41 44 03 CR2 12 11 14 42 41 44 CR2 A1 A2 X4 1 2 3 M P1 Motor Pump 04 3 04 3 04 5 04 6 04 7 04 5 04 5 X5 1 2 3 SGV1 SGV2 1 2 3 1 2 ...

Page 66: ...esigns materials weights and performance ratings are approximate and subject to change without notice Visit armstronginternational com for up to date information 66 Main Power Relay Assembly Appendix Additional Electrical Drawings continued X4 GAS VALVE RELAY PUMP RELAY X3 X2 X5 X1 POWER TO PUMP MAIN POWER ...

Page 67: ...0 20 2017 Updated wire colors AWG Q1 10A Q2 2A G1 Q3 0 5A CCB 19 18 17 16 15 1413 12 1110 9 8 7 6 5 4 3 2 1 20 21 22 23 24 25 26 2728 2930 31 323334 3536 3738 394041 42 4344 4546 47 4849 50 5152 53 54 55 56 X6 1 2 3 X7 1 2 X8 1 2 X9 1 2 3GRouter Protonode B A SG FG Port 2 CDB B OT A OT CAT5 RJ 45 If Equiped ToTerminals 13 14 17 On Nearest Appliance 05 12 05 2 Disconnect Box Belkin 5402FE Belkin 54...

Page 68: ...ope Middle East Africa China Pacific Rim armstronginternational com Designs materials weights and performance ratings are approximate and subject to change without notice Visit armstronginternational com for up to date information 68 Notes ...

Page 69: ...ope Middle East Africa China Pacific Rim armstronginternational com Designs materials weights and performance ratings are approximate and subject to change without notice Visit armstronginternational com for up to date information 69 Notes ...

Page 70: ...ope Middle East Africa China Pacific Rim armstronginternational com Designs materials weights and performance ratings are approximate and subject to change without notice Visit armstronginternational com for up to date information 70 Notes ...

Page 71: ...oval repair or replacement re installation of parts claimed by the purchaser or user to be defective 2 Any shipping or delivery charges incurred in returning or replacing products or components under this warranty 3 Any failed components of the product or system not manufactured by Armstrong For any such claims users shall revert to the respective manufacturer s warranty Armstrong shall provide re...

Page 72: ...Heater This limited lifetime warranty covers the stainless steel tank stainless steel heat exchanger and component parts for leakage or other malfunction caused by defects in material or workmanship In addition to the general exclusions above this warranty excludes excessive use and does not apply in non residential use If this product is used other than for single family housing the unit will car...

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Armstrong ABH 299, Installation & Operation Manual

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Summary of Contents for ABH 299

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