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8.1

General

Electrically bond boiler to ground in accordance with

requirements of authority having jurisdiction. Refer to:

•

USA- National Electrical Code, ANSI/NFPA 70.

• Canada - Canadian Electrical Code, Part I, CSA C22.1:

Safety Standard for Electrical Installations.

8.2

Electric Knockouts

(Figure 8-1)

• Eight knockouts located on bottom of chassis.

A.  Thermostat (Section 8-10)
B.  Outdoor Reset (Section 8-9)
C.  Frost Protections ( Section 8-12)
D.  DHW Sensor (Sections 8-11, 8-13)
E.  Release Input (

Section

8-7)

F.  Shutdown Input (Section 8-15)
G.  Analog Input (Section 8-8, IF-01 board)
H.  Analog Output (Section 8-8, IF-01 board)
I.  Alarm (IF02 or SCU-SO2 board)
J.  External Heat System Pump (Section 8-8, SCU-S02

board)

K. DHW Diverter/Pump (Section 8-8)
L.

External Gas Shutoff (Section 8-8)

M. Minimum Gas Pressure Switch (Section 8-8)

N.

Solar Input (Section 8-8)

WARNING

Electrical shock hazard. Turn OFF electrical power

supply at service panel before making electrical

connections. Failure to do so could result in death

or serious injury.

!

FIGURE

8-1

Electric Knockouts Bottom Of Boiler

8 Wire

Knockouts

Back of Boiler

8 - ELECTRICAL CONNECTIONS

8.3 Electrical Connections

• Boiler requires 120V 60Hz power supply. Verify electrical

supply is polarized.

• Boiler shall be grounded and on dedicated circuit.
• Shall be one common isolator, providing electrical isolation

for boiler and any external controls. Using PVC insulated

cable 18 AWGx3C 221°F / 105 °C.

• All wiring must be installed in accordance with

requirements of the National Electrical Code and any

additional national, state, or local code requirements

having jurisdiction. All wiring must be N.E.C. Class 1.

• Canada, installation must conform to CSA C22.1 Canadian

Electrical Code Part 1 and any local codes.

• If replacing original boiler wiring use only TEW 105°C or

equivalent.

• 12 Amp Maximum rating.

PN 240011662 Rev. H [04/30/2019]

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Содержание Utica Boilers UCS-380

Страница 1: ...OOR OR WALL MOUNTED BOILER INSTALLATION OPERATION MAINTENANCE MANUAL Model UCS 380 Manufactured by ECR International Inc 2201 Dwyer Avenue Utica NY 13501 Tel 800 253 7900 www ecrinternational com PN 240011662 REV H 04 30 2019 ...

Страница 2: ...ture Pressure Gauge Drain Valve Used for measuring outside temperature Includes essential documents Gas Shutoff Valve Outdoor Sensor Document Package Manifold See page 13 5 8 for install instructions VERIFY CONTENTS RECEIVED PN 240011662 Rev H 04 30 2019 ...

Страница 3: ...Temperature Sensor 45 8 10 Central Heating Thermostat 45 8 11 DHW Indirect Water Heater 46 8 12 Frost Protection 46 9 Start Up Procedure 49 9 1 Fill Condensate Trap With Water 49 9 2 Commission Setup Water 49 9 3 Commission Setup Gas 50 9 4 Commission Setup Electric 50 9 5 Control Panel 51 9 6 Deaeration Function 52 9 7 Commissioning 53 9 8 Before Gas Conversion 53 9 9 Gas Conversion Propane 53 9 ...

Страница 4: ...on J 8 196 9mm Size 3 4 NPT Weight Shipping 255 LBS 115 7 Unit 225 LBS 102 1kg Vent Connector Concentric 110 160 mm Electrical Cord Length 5 ft 1 5m PHYSICAL DATA Dimensions Vent Connector Combustion Air A B Front View Top View Bottom View Dimensions H G C J Condensate Drain Connection Return Water Gas Connection Bottom View Connection Identification Supply Water 50 psi safety relief valve 3 44 ba...

Страница 5: ...tion FOR YOUR SAFETY READ BEFORE OPERATING Hot Water Can Scald Water heated to temperature for clothes washing dish washing and other sanitizing needs can scald and cause permanent injury Children elderly and infirm or physically handicapped persons are more likely to be permanently injured by hot water Never leave them unattended in bathtub or shower Never allow small children to use a hot water ...

Страница 6: ...eat exchanger over heat protection Recommended system pressure cold 21 7 psig 1 5 bar 2 8 CSD 1 Compliance Consult authority having jurisdiction prior to installation Field source Manual reset low water cutoff See Section 5 4 Manual Reset External High Temperature Limit 2 Introduction 2 1 Installation shall conform to requirements of authority having jurisdiction or in absence of such requirements...

Страница 7: ...t 12 Exchanger flange high limit 4 on wire diagram 13 Burner sight glass 14 Ignition Flame detection electrode 15 Spark generator 16 Auxiliary control board box 17 Air gas venturi 18 Pump 19 Boiler drain 20 Low water pressure switch A Condensate trap drain B Gas inlet connection C Heating supply connection D Heating return connection 1 2 3 4 5 7 6 8 9 10 11 13 12 14 15 16 17 18 19 20 PN 240011662 ...

Страница 8: ...ace special attention shall be given to the requirements of the current electrical provisions with respect to the installation of the boiler in a room or internal space containing a bath or shower Where a room sealed boiler is installed in a room containing a bath or shower it must not be possible for a person using the bath or shower to touch any electrical switch or boiler control utilizing line...

Страница 9: ...Boiler Left Side View Boiler Front View FIGURE 4 2c Combustible Clearances Closet Installation CLOSET INSTALLATION Boiler Left Side View Minimum Service clearance to front of boiler 17 3 4 450mm TOP VIEW 1 3 4 400mm 1 3 4 400mm 1 3 4 400mm BACK CLEARANCES REQUIRED FOR CLOSET INSTALLATION 0 in 0 mm between the Back of the Unit and the wall See Table 2 page 8 1 3 4 45mm 1 3 4 45mm 0 0mm 0 0mm 0 0mm ...

Страница 10: ...tem piping connected to heating coils located in air handling unit exposed to refrigerated air circulation Install flow control valves or other automatic means to prevent gravity circulation of boiler water during cooling cycle 5 HYDRONIC PIPING 5 1 General Primary Secondary piping required Install piping in accordance with authority having jurisdiction Support system piping and safety relief valv...

Страница 11: ...d close to safety relief valve outlet Install elbow s if used close to safety relief valve outlet and downstream of union if used Terminate pipe with plain end not threaded Check Local Codes For Maximum Distance To Floor 5 4 Low Water Cutoff Boiler is equipped with Low Water Pressure Switch Low Water Cutoff LWCO probe location See figure 5 2 for minimum probe height Do not install shutoff valve be...

Страница 12: ...tral heating pump not directly connected to control system Multiple boiler system See figures 5 6 5 7 for general guidance Additional considerations Control system requires equivalent water temperatures entering each boiler to properly sequence and adjust system supply temperature WARNING Burn and scald hazard Verify all plastic caps are removed from boiler connections Failure to follow these inst...

Страница 13: ...ed medium is piped in parallel with the boiler with appropriate valves to prevent chilled medium from entering the boiler Boiler piping system of hot water boiler connected to heating coils located in air handling units where they may be exposed to refrigerated air circulation must be equipped with flow control valves or other automatic means to prevent gravity circulation of the boiler water duri...

Страница 14: ...show system piping concept only Installer responsible for all equipment and detailing required by authority having jurisdiction Piping Legend Boiler WARNING Burn Scald Hazard Water temperature over 125 F 51 C can cause severe burns and scalding See User s Manual before setting water temperature Failure to follow these instructions could result in death or serious injury PN 240011662 Rev H 04 30 20...

Страница 15: ...ti scald valve Local codes may require additional equipment expansion tank relief valves etc Select and size equipment to suit installation and meet code requirements T P Relief Valve to Drain Cold Water Supply Optional Indirect DHW Tank BOILER Make up Water Supply Tank Sensor CH System Pump ASME Relief Valve 1 DHW Pump Hot Water Supply Tempered S Note Refer to pump manufacturer literature for pro...

Страница 16: ...ll domestic hot water DHW installations use an anti scald valve Local codes may require additional equipment expansion tank relief valves etc Select and size equipment to suit installation and meet code requirements Hot Water Supply Tempered S Note Use external pump relay or Argo Zone Control to interface system pump to boiler 12 305mm Maximum Separation required if Labor Saver is NOT used Note Re...

Страница 17: ...and size equipment to suit installation and meet code requirements Note Use external pump relay or Argo Zone Control to interface system pump to boiler 12 305mm Maximum Separation required if Labor Saver is NOT used Note Refer to pump manufacturer literature for proper pump sizing BOILER ASME Relief Valve ASME Relief Valve ASME Relief Valve System Temperature Sensor S Optional Indirect DHW Tank Ta...

Страница 18: ...elect and size equipment to suit installation and meet code requirements Note Use external pump relay or Argo Zone Control to interface system pump to boiler 12 305mm Maximum Separation required if Labor Saver is NOT used Note Refer to pump manufacturer literature for proper pump sizing BOILER BOILER BOILER ASME Relief Valve ASME Relief Valve ASME Relief Valve System Temperature Sensor S Optional ...

Страница 19: ...r appliances remaining connected to common venting system are not in operation Seal any unused openings in common venting system Visually inspect venting system for proper size and horizontal pitch Determine there is no blockage or restrictions leakage corrosion and other deficiencies which could cause an unsafe condition When practical close all building doors windows and all doors between space ...

Страница 20: ...SA B149 1 When re sizing any portion of common venting system common venting system should be re sized to approach minimum size as determined using appropriate tables in Chapter 13 of the National Fuel Gas Code ANSI Z223 1 NFPA 54 and or Natural Gas and Propane Installation Code CAN CSA B149 1 6 COMBUSTION AIR AND VENT PIPING 6 3 Definitions 1 Coaxial piping exhaust and air intake pipe have a comm...

Страница 21: ... vent and 90 elbow for combustion air termination when using fittings Separate vent terminal from air inlet terminal to prevent flue gas recirculation If T Terminal is used on flue pipe at sidewall air inlet terminal shall be at least 36 or more away from vent terminal Locate combustion air intake termination as far as possible from swimming pool swimming pool pump house and other sources of airbo...

Страница 22: ...und Anticipated Snow Line Ground Anticipated Snow Line Maintain 12 305mm US 18 457mm Canada clearance above highest anticipated snow level 24 610mm above roof or ground Anticipated Snow Line 18 Vertical Clearance to ventilated soffit Illustration shows examples of maximum equivalent lengths Coaxial Elbows Equivalent length Elbow Total Length Reduction 45 1 8 0 5 m 90 3 4 1 0 m B Coaxial Flue Optio...

Страница 23: ...pe 6 COMBUSTION AIR AND VENT PIPING WARNING Asphyxiation hazard Improper installation could result in death or serious injury Read Twin Pipe Installation Instructions completely and understand all requirements before beginning installation 6 6 Twin Pipe Polypropylene and CPVC Systems Twin pipe venting allows exhaust flue and intake flue to be separated from each other Fresh air is drawn in at a di...

Страница 24: ...ING Asphyxiation hazard For Duravent polypropylene twin pipe only The twin pipe vent connections on the 380 boiler are designed to accept 110 mm DuraVent polypropylene 4 venting measures 100 mm Manufacturer requires transition pieces from Duravent to adapt from 110 mm to 100 mm One transition is required for the exhaust and one is required for the fresh air intake Failure to follow these instructi...

Страница 25: ... 6 11 Inside Air Single Pipe Figure 6 15 Table 6A Combustion Air Venting Locations Type Location Terminal Type Corresponding Figures Venting Flue Gas Side Wall S Terminal with 90 elbow Figure 6 9 6 10 T Terminal Figure 6 13 Roof Straight Terminal Figure 6 12 6 13 Combustion Air Fresh Air Side Wall Raised 90 down elbow Figure 6 9 90 down elbow Figure 6 10 6 12 Roof Raised 90 down elbow Figure 6 8 6...

Страница 26: ...andoned unused masonry chimney may be used as chaseway for combustion air and vent Both combustion air and vent pipe must exit above top of chimney with clearances as shown in figure 6 7 FIGURE 6 7 Two Pipe Roof Vent FIGURE 6 8 Two Pipe Side Wall Vent FIGURE 6 9 Two Pipe Side Wall Vent Multiple Appliances Vent 12 305mm Min Separation Manuf Recommends Greater Separation Combustion Air 6 COMBUSTION ...

Страница 27: ...ig 6 10 does not have a max separation requirement between flue gas and fresh air Fig 6 11 Flue on Roof Air Intake on Side Wall Fig 6 12 Flue on Sidewall Combustion Air on Roof Maintain 12 305mm US 18 457mm Canada clearance above highest anticipated snow level 24 610mm above roof or ground Combustion Air Vent Snow Line Maintain 12 305mm US 18 457mm Canada clearance above highest anticipated snow l...

Страница 28: ...anticipated snow line 18 Vertical Clearance to ventilated soffit Combustion Air Vent 24 610mm Minimum Length Maintain 12 305mm US 18 457mm Canada minimum clearance above highest anticipated snow level maximum 24 610mm above roof Combustion Air Vent 24 610mm Minimum Length Maintain 12 305mm US 18 457mm Canada minimum clearance above highest anticipated snow level maximum 24 610mm above roof NOTICE ...

Страница 29: ...doors windows or gravity inlet If boiler uses inside air min 4 1219 mm 12 305mm Min Termination Forced Air Inlet 3 0 9m If located within 10 3m of forced air inlet Termination Less Than 10 3m Minimum 3 914mm Minimum FIGURE 6 15 FIGURE 6 16 FIGURE 6 17 6 9 Side Venting Terminal Requirements of USA National Fuel Gas Code ANSI Z223 1 NFPA 54 Canada Natural Gas and Propane Installation Code CAN CSA B1...

Страница 30: ... or recirculated vent gases Give consideration to excessive wind and locate away from windward side of building Vapors Position termination where vent vapors are not objectionable Walkways Locate vent termination minimum 7 2 1m above any public walkway with consideration to condensate Meters Regulators deck porch Vent termination US only 4 1 2m Canada 6 1 9m horizontally from no case above or belo...

Страница 31: ...rance to non mechanical air supply inlet to building or the combustion air inlet to any other appliance 12 305mm 3 ft 0 9m K Clearance to mechanical air supply inlet 3 ft 0 9m 6 ft 1 8m L Clearance above paved sidewalk or paved driveway located on public property 7 ft 2 1m 7 ft 2 1m 1 M Clearance under veranda porch deck or balcony 12 305mm 2 12 305mm 2 For clearances not specified in ANSI Z223 1 ...

Страница 32: ...e B distance of 10 in 250 0 mm from boiler Secure flue pipe to wall with supports 3 ft 1 meter from each other Secure supports along the joint of each pipe 6 11 Multiple Boiler Venting Mounting Procedure See Figures 6 21 thru 6 23 1 Vent pipes correctly mounted See Figure 6 22 2 Line horizontal common vent pipes with male end towards condensate collector end cap 3 Follow vent manufacturer s instru...

Страница 33: ...end cap and condensate trap to horizontal common vent pipe 11 Secure flue adapters using approved clamps to wall Ensure clamps are connected minimum of 10 in from top of boiler See Figure 6 24 12 Secure approved clamp around flue adapter Ensure clamp is locked in to proper position See Figure 6 24 A Position 1 Clamping around bell end of adapter B Position 2 Clamping around flue pipe adapter 13 Ma...

Страница 34: ... and last horizontal vent collector pipe 3 ft 4 in 1 00 m For calculating other lengths between last collector and shaft length of vertical height must be reduced by this additional length and by the numbers of bends according to the table Elbow Type 6 in 8 in Equivalent Length Equivalent Length 45 5 ft 7 in 1 7m 12 ft 3 8 m 90 13 ft 1 in 4 0m 19 ft 5 8 m 6 in Multiple Boiler Vent Application Exam...

Страница 35: ...xhaust manifold 3 2 in per 3 ft 4 in 50 0 mm per 1 0 m B Back to Back System This system consists of boilers installed back to back connected to a common exhaust manifold 2 in per 3 ft 4 in 50 0 mm per 1 0 m 3 FIGURE 6 27 Multiple Boiler Vent Applications FIGURE 6 28 Multiple Boiler Vent Applications PN 240011662 Rev H 04 30 2019 ...

Страница 36: ...Multiple Boiler Venting Parameter Settings To set parameter P19 see section 9 to ensure check valve in vent opens PARAMETER P19 Revs min rpm at minimum Power Natural Gas A LPG E 30 30 Flue header size shall be calculated by qualified service agency during system design as required by local authority having jurisdiction FIGURE 6 29 Multiple Boiler Vent Applications PN 240011662 Rev H 04 30 2019 ...

Страница 37: ...eld source condensate pump if boiler located below disposal point Field source condensate neutralizing kit as required by authority having jurisdiction or for environmentally friendly condensate disposal FIGURE 6 30 Condensate Drain 6 COMBUSTION AIR AND VENT PIPING Condensate Tee Field installed on condensate drain pipe Do not glue cap on if used for dust protection End must be left open Do not pl...

Страница 38: ...m3 h for Liquid Propane Gas Gas E Gas meter and supply pipes must be capable of delivering the listed quantity of gas in addition to demand from any other appliances in the house UCS 380 requires a 1 25 4 mm gas supply pipe Gas Supply Pressure Natural Gas LP Min Max Min Max 3 0 w c 0 87 kPa 10 5 w c 2 61 kPa 8 0 w c 1 99kPa 13 0 w c 3 23kPa NOTICE Use of CSA approved corrugated semi rigid stainles...

Страница 39: ...Pa or less Isolate boiler from gas supply system by closing manual gas shutoff valve See figure 7 3 Locate leakage using gas detector noncorrosive detection fluid or other leak detection method acceptable to authority having jurisdiction Do not use matches candles open flames or other methods that can provide ignition source Correct leaks immediately and retest DANGER Fire Hazard Do not use matche...

Страница 40: ...n 8 8 WARNING Electrical shock hazard Turn OFF electrical power supply at service panel before making electrical connections Failure to do so could result in death or serious injury FIGURE 8 1 Electric Knockouts Bottom Of Boiler 8 Wire Knockouts Back of Boiler 8 ELECTRICAL CONNECTIONS 8 3 Electrical Connections Boiler requires 120V 60Hz power supply Verify electrical supply is polarized Boiler sha...

Страница 41: ...l cabinet by unfastening clip on front of control box Push lip back for latch 5 Run wire s through grommet s in control panel cabinet 6 Unscrew wire clamp to access connection block and bring wires through 7 Connect wires to appropriate terminals on connection block 8 Firmly tighten wire clamps and close control panel cabinet Various thermostats and controllers can be connected to standard control...

Страница 42: ...01 IF 01 control PCB is built into auxiliary control box Refer to instructions supplied with product Do not connect freeze thermostat or room thermostat to boiler if using 0 10 V control PCB 1 Connection Status Nc If boiler locks out a relay is de energized and an alarm can be transmitted via a dry set of contacts maximum 120 VAC 1A on terminals Nc and C of the control board connection 2 Connectio...

Страница 43: ...2 Hysteresis 2 0 10 01 72 176 20 80 Temperature output required 1 Dependent on minimum modulation depth set speeds standard 20 5 Analog Heat Output Based Control 0 10V signal controls boiler output between 0 and 100 Minimum and maximum values are limited Minimum output is linked to boiler s modulation depth Output varies between minimum and maximum value on basis of value determined by controller ...

Страница 44: ...e set using parameter P34 Three way valve is connected as follows N neutral C heating system D indirect tank If neutral position of three way valve is adjusted with parameter P34 connect the pump as follows N N pump C L pump Ground 3 External Gas Valve Control EgV If there is a call for heat alternating voltage of 120 VAC 1 A maximum becomes available on EgV terminals of control board to control a...

Страница 45: ...Boiler control does NOT provide 24 VAC power to central heating thermostat E Locate and install thermostat per manufacturer s instructions Maximum wire length is 330 ft 100m for 22 ga wire F Connect wires to on off OT terminals Wires are interchangeable G Boiler is not suitable for Nest type thermostat without the use of an isolation relay such as Argo IR 882 FIGURE 8 10 Outdoor Temp Sensor FIGURE...

Страница 46: ...K Ω outdoor temperature sensor Radiator valve or zone must be open where there is a risk of freezing Connect 1 K Ω outdoor temperature sensor to T out terminals of control board Frost protection activates when 1 K Ω outdoor temperature sensor reads a temperature lower than 10 F 10 C This can be adjusted using parameter P30 Circulation pump will switch on and operate continuously until the outdoor ...

Страница 47: ...Connect CH Central Heating pump on terminal N L Pump of control PCB SCU 02 see section 8 8 Connect DHW Domestic Hot Water pump on terminal N D 3wV of control PCB SCU 02 see section 8 8 FIGURE 8 15 Example Of System Shutdown Input Connection Example below shows connection of shutdown input for system connecting to auxiliary board See section 8 6 PN 240011662 Rev H 04 30 2019 ...

Страница 48: ...48 8 ELECTRICAL CONNECTIONS FIGURE 8 16 Wiring Diagram B 13 PN 240011662 Rev H 04 30 2019 ...

Страница 49: ...distribution system to ensure it is sized and installed correctly Before filling open all valves on the heating circuit in the installation Flush heating system including all heating zones Fill boiler with potable water Fill boiler and system piping with water or antifreeze water solution if used See antifreeze information page 11 Purge air from boiler using air vent Purge air from system piping C...

Страница 50: ...sig 60 mbar B Purge gas supply pipe within boiler by unscrewing pressure outlet on gas valve C Tighten the port when pipe has been sufficiently purged 12 Check all gas connections in the boiler are tight 13 Check piping and connections for leaks immediately after gas is turned on Shut off gas supply and make necessary repairs if leaks are found 9 4 Commission Setup Electric 1 Check electrical conn...

Страница 51: ...el can be changed Energy saving mode Economic mode activated Fault Boiler fault indicated Can be seen from é code and red display Frost protection Boiler running in frost protection mode Hour counter menu Readout of operating hours number of successful starts and hours on main supply ON OFF switch After 5 lock outs boiler must be switched OFF ON again Boiler pump Pump operates Heating system funct...

Страница 52: ...e boiler Deaeration function starts Display shows 17 Deaeration and water pressure Psi See Figure 9 4 Boiler pump will run on and off for up to 10 minutes This will purge air from the system The burner will switch on for a few seconds to verify increasing temperature on flow return sensors Boiler is ready to start in standard operation Repeat Deaeration function at least 3 times switching boiler o...

Страница 53: ...unction to set boiler to operate on full load and on part load in Heating mode 2 Adjust Fan Speed as indicated in table found in section Parameter Settings if required 3 Modify fan speeds using parameters P17 P18 and P19 4 Set air gas ratio O2 CO2 Full load and Part load as describe below 5 Use combustion analyzer to properly set gas valve 6 Allow time between adjustments for your combustion analy...

Страница 54: ... exhaust flue test port Verify the opening around combustion analyzer probe is completely sealed when taking measurements Set boiler to low fire by pressing two buttons simultaneously If the boiler is already in combustion setup mode for high fire press the button several time until L3 is displayed on the screen Measure percentage of O2 or CO2 in flue gases Compare the measured values with values ...

Страница 55: ...ualified installer To prevent unwanted settings some parameter settings can only be changed after special access code 0012 is entered Modification of factory settings may be detrimental to operation of the boiler Press the two Menu buttons simultaneously and then button until the symbol flashes on the menu bar Select the INSTALLER menu using the button CODE appears on the display Use or button to ...

Страница 56: ... P7 Pump post run time CH 1 to 98 minutes 99 minutes continuous 3 P8 Display brightness when backlight is active 0 Low 1 High 1 P17 Max fan speed during CH mode Natural gas 1 x100 rpm 73 Propane x100 rpm 71 P18 Max fan speed during DHW mode Natural gas 1 x100 rpm 73 Propane x100 rpm 71 P19 Minimum fan speed during CH DHW mode Natural gas 1 x100 rpm 12 Propane x100 rpm 12 P20 Offset on part load fa...

Страница 57: ... 0 CH enable 1 Blocking without frost protection 2 Blocking with frost protection 3 Lock out with frost protection 1 P37 Function of release input 0 DHW enable 1 Burner release 1 P38 Wait time for valid release signal 0 to 255 seconds 0 No check 0 P39 Wait time for flue gas valve 0 to 255 seconds 0 P40 Position from alarm operation signal relays 0 Operation signal 1 failure signal 1 P41 Minimum ga...

Страница 58: ...1 P51 Flue gas temperature 0 PVC 65 C 149 F 1 CPVC 90 C 194 F 2 PP SS 110 C 230 F 1 P52 Air pressure sensor 0 Off 1 On 0 P53 DHW time out mode 0 None 1 Absolute 1 P54 DHW time out 10 to 180 minutes 150 P55 CH prior time 10 to 180 minutes 120 P56 RPM min antiwind 10 to 30 100rpm 25 Parameter Description Adjustment Range Factory Setting UCS 380 1 Do not modify these factory settings unless absolutel...

Страница 59: ...he button is displayed alternating with the current sub status for example 4 Press the button is displayed alternating with the current flow temperature 1 5 7 F for example 5 Press the button successively to scroll down to the various parameters 6 Press the button is displayed alternating with the internal set point 4 5 F for example 7 Press the button is displayed alternating with the current ion...

Страница 60: ... protection gradient level 3 Blockage 36 Modulate up for flame control 37 Temperature stabilization time 38 Cold start 4 Burner on DHW mode 30 Temperature control 31 Limited temperature control ΔT safety 32 Output controlled 33 Temperature protection gradient level 1 Modulate down 34 Temperature protection gradient level 2 low fire 35 Temperature protection gradient level 3 Blockage 36 Modulate up...

Страница 61: ...ing Press button df x is displayed with x flashing This is the current value of X for dF Check this against the value of X on the type plate Enter the value of X shown on the type plate using the or button Confirm the value with the button df y is displayed with y flashing This is the current value of Y for dU Verify the value of y on the rating plate is the same Enter the value of y shown on the ...

Страница 62: ...ceeds central heating loop setpoint unit will shutdown and go through 3 minute time delay burner pause time before another call for heat During this time the pump will run for additional three minutes to dissipate any residual heat FOR YOUR SAFETY READ BEFORE OPERATING 10 2 OPERATING INSTRUCTIONS Stop Read Safety information above Set thermostat to lowest setting Turn OFF all electrical power to a...

Страница 63: ... valve manufacturer s instructions packaged with relief valve Examine flue passages in heat exchanger burner condensate lines and cleaning if necessary by following instructions in Annual Examination and Cleaning of Boiler Components in this section CAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation FIGURE 11 1 Sight Glas...

Страница 64: ...d from factory and require no further lubrication Lubricate field sourced pumps and or motors according to pump and or motor manufacturer s instruction Check following components are operating properly and are free of blockages or obstructions air vent check venturi air inlet for blockage and clean as required verify pressure test port cap and combustion test port are in place return temperature s...

Страница 65: ...stles this might damage the injector 4 Remove any fallen deposits from bottom of inner case 5 Clean burner with soft brush and check flame ports are clear Blockages may be removed with stiffer brush 6 Check condition of electrodes 7 Check spark gap positioning and height of electrodes 8 Check fan impeller is clean and free to rotate WARNING Following service procedures must be performed by qualifi...

Страница 66: ...lose central heating flow and return valves Connect suitable pipe to drain point Route it to suitable container Open drain tap 11 GENERAL MAINTENANCE AND CLEANING DANGER Before servicing turn off electrical power to boiler at service switch Close manual gas valve to turn gas supply OFF to boiler Failure to comply will result in death or serious injury 11 1 Electrodes 1 1 8 1 16 4 mm 0 5 mm A B C 1...

Страница 67: ...ng Water MBH 1 3 Thermal Efficiency Maximum Minimum 379 35 348 303 95 0 1 1000 Btu hr British Thermal Units Per Hour 2 Heating Capacity and AFUE Annual Fuel Utilization Efficiency are based on DOE Department of Energy test procedures 3 Net AHRI Ratings based on piping and pickup allowance of 1 15 Contact Technical Support before selecting boiler for installations having unusual piping and pickup r...

Страница 68: ...ng correctly Check sensor has been correctly fitted Replace sensor if necessary CHART 1 E04 E05 Temperature of heat exchanger too low Heat exchanger temperature too high Bad connection Sensor fault Sensor not poorly connected No circulation Check the wiring Replace sensor if necessary Purge air in heating system Check for water circulation direction pump valves Check water pressure Check sensors a...

Страница 69: ...heck that the air inlet and exhaust flue are not blocked Check the wiring on the gas valve Defective control SU PCB CHART 5 Presence of the flame but insufficient ionization 3 μA Check that the gas valve is fully opened Check the supply pressure Check the ionization ignition electrode Check the grounding Check the wiring on the ionization ignition electrode CHART 5 E16 False flame signal Ionizatio...

Страница 70: ...ange during boiler operation burner on Bad connection Supply Return sensor damaged No water circulation Check the sensor connection Replace the sensor Check the pump connection CHART 11 E44 Difference between supply return temperature too high Bad connection Supply Return sensor damaged No water circulation Check sensor connection Replace sensor Check pump connection 13 2 Shutdowns and Lock outs B...

Страница 71: ...1 Power supply incorrectly wired Floating or 2 phase network Line and neutral mixed up Set parameter p43 to 0 Su 10 Shutdown input is open External cause Parameter error Bad connection Correct the external cause Check the parameters Check the wiring Su 11 Shutdown input active or frost protection active External cause Parameter error Bad connection Correct the external cause Check the parameters C...

Страница 72: ...u 30 2 No tFG sensor connected shorted Boiler stop Flue high limit disconnected Sensor error Replace flue high limit Su 33 After 5 times tF tF Max controlled stop Non existent or insufficient circulation sensor error Replace supply sensor Check circulation direction pump valves Check water pressure Check sensors are operating correctly Check sensor has been correctly fitted Check cleanliness of he...

Страница 73: ... using button Er xx is displayed with xx flashing Last error which occurred for example 2 Use or buttons to scroll through faults Press button to display details of faults or shutdowns Press or buttons to view the following information n 1 Number of times that the error occurred hr The number of operating hours St State Su Sub status t1 Supply temperature ºF ºC t2 Return temperature ºF ºC t3 DHW t...

Страница 74: ...3 279 84 2 858 28 4 3 131 86 0 827 30 2 2 990 87 8 796 32 0 2 857 89 6 767 33 8 2 730 91 4 740 35 6 2 610 93 2 713 37 4 2 496 95 0 687 39 2 2 387 96 8 663 41 0 2 284 98 6 640 42 8 2 186 100 4 617 44 6 2 093 102 2 595 46 4 2 004 100 4 617 48 2 1 920 102 2 595 50 0 1 840 104 0 575 51 8 1 763 106 0 556 CHART 2 INDIRECT TANK SENSOR DATA T R T R F Ohm F Ohm 32 0 32 505 86 0 8 060 33 8 30 898 87 8 7 726...

Страница 75: ...tions tight and wires undamaged NO YES Check continuity across sensor OK NO YES Repair wire and or fix connection Check sensor element is properly installed in pipe NO YES Replace Sensor Replace Control Board Re Install Sensor Properly Check sensor resistance and compare to temperature resistance curve Figure 13 1 page 87 Remove sensor if needed OK NO YES Replace Sensor Note DOMESTIC HOT WATER SEN...

Страница 76: ...lass Is flame present NO YES Replace Flame Sense Adjust Gas Mixture See Section 9 Re check E 16 still present NO YES Replace Gas Valve Condition Corrected E16 False Flame Signal Initiate heat call Check CO2 at high fire is 9 1 9 5 Out of Range In Range Replace Flame Sense PN 240011662 Rev H 04 30 2019 ...

Страница 77: ...ce Heat Exchanger E12 High Temperature Is external High Limit Switch off NO or N A YES 13 TROUBLE SHOOTING Troubleshooting Chart 3 Reset Switch Check Boiler Pump OK NO YES Water Circulation Adequate NO YES Purge air in system Repair Piping Repair plug or replace switch Does heat exchanger switch 6 in wire diagram have continuity NO YES PN 240011662 Rev H 04 30 2019 ...

Страница 78: ...rol board Check both sensors are properly inserted into pipe lines NO YES Repair sensor insertion into pipe lines E10 E11 Temperature Difference Between Supply and Return Too Great E35 Supply and Return Sensors Reversed Onboard pump operation properly NO YES Replace pump Possible air in system De aerate Are any water valves partially closed NO YES Open all valves Check wire harness against wiring ...

Страница 79: ...gas line Check gas inlet pressure at least equals rating plate requirements NO YES Press RESET for two 2 seconds and retry Is there a strong consistent spark NO YES Remove igniter and inspect Is there contamination NO YES Clean Or Replace Igniter Does the boiler ignite NO YES Restart the boiler and place into high fire chimney sweep Go to display and check flame current Is there at least 3 mA NO Y...

Страница 80: ...NO YES Provide proper ground Purge all air from gas line Check gas inlet pressure at least equals rating plate requirements NO YES Check gas line for obstructions Check venting Is exhaust gas recirculating to the air intake NO YES Clean or Replace Igniter Clear Vent Obstruction Remove igniter and inspect Is there damage or contamination NO YES Restart boiler Go to display and check flame current I...

Страница 81: ...BL connection on control board terminal strip Is this function being utilized NO YES Secure wire connections Install jumper securely in place Repair Replace External Accessory Item As Required E39 Shutdown Input In Locked Out Mode Are the wire connections secure NO YES Is factory installed jumper securely in place NO YES Check external accessories are correct NO YES Check external accessories are ...

Страница 82: ...r Is wiring connection to HRU terminal secure NO YES Is wiring connection from SCU board to main board secure NO YES Is Parameter P42 set to 1 NO YES Is P42 parameter set to 0 NO YES Done Set P42 to 0 NOT OK OK Replace SCU board NOT OK OK Replace Main Control Board Done Set P42 to 1 Not OK OK Done Is HRU accessory operating properly NO YES Correct HRU Accessory PN 240011662 Rev H 04 30 2019 ...

Страница 83: ... Check wire harness connections are secure NOT OK OK The error code is accurate Correct water pressure and or correct system leaks Replace Sensor NOT OK OK Note This error code refers to the onboard low water pressure switch not any field installed external low water cutoff device Is low water pressure sensor item 12 in wiring diagram securely installed to block NO Yes Correct Installation Done PN...

Страница 84: ...rence During Operation Check wire plugs are securely connected to temperature sensors NO YES Onboard pump operating properly NO YES Check both sensors are properly inserted into pipe lines NO YES Possible air in the system De aerate NOT OK OK Done Not OK OK Repair Sensor Insertion Into Pipe Lines Refer to Temperature Sensor Chart both sensors Replace Sensor Replace Control Board PN 240011662 Rev H...

Страница 85: ...ensors T C T F R Ohm 40 40 309396 30 22 171840 20 4 98932 10 14 58879 0 32 36129 10 50 22804 20 68 14773 25 77 12000 30 86 9804 40 104 6652 50 122 4607 60 140 3252 70 158 2337 80 176 1707 90 194 1266 100 212 952 110 230 726 120 248 560 130 266 438 140 284 345 150 302 275 PN 240011662 Rev H 04 30 2019 ...

Страница 86: ...hough flame proofed fire retardant treated or plastered COMBUSTION AIR Air that is drawn into an appliance to mix with fuel and support combustion CONDENSATE Liquid separated from flue gas due to reduction in temperature DIRECT VENT BOILER Boiler constructed and installed so all combustion air is derived directly from outdoors and all vent gases are discharged to outdoors 14 GLOSSARY GAS SUPPLIER ...

Страница 87: ... to relieve pressure in hot water supply system when pressure exceeds pressure capability of equipment SAFETY SHUTOFF DEVICE Device that will shut off gas supply to controlled burner in event source of ignition fails SEDIMENT TRAP Gas piping arrangement designed to collect any liquid or solid contaminant before reaching gas valve SERVICE Supply installation or maintenance of goods carried out by a...

Страница 88: ...All speci ications subject to change without notice 2019 ECR International Inc 2201 Dwyer Avenue Utica NY 13501 Tel 800 253 7900 www ecrinternational com BDR THERMEA GROUP ...

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