Cadet 40 - 120 Manuale di Servizio

CAD-I-S Rev H Installation & Service ManualModels: 40 - 120This manual must only be used by a qualified heating installer / service technician.

Failure to follow all instructions can result in flue gas spillage and carbon monoxide emissions, causing severe personal injury or death. WARNINGWhe

When removing a boiler from existing common vent system:Do not install the Cadet heating boiler into a common vent with any other appliance. This wil

2 Prepare boiler12Remove boiler from wood pallet1. After removing the outer shipping carton from the boiler, remove the parts box.2. To remove the

Do not drop the boiler. Damage to the boiler can result.REMOVE SHIPPING[WALL] BRACKETDO NOT DISCARD-WILL BE NEEDED TOSECURE THE BOILERTO THE WALLIMG0

3 General ventingIMG00267IMG00219Figure 3-1 Two-Pipe Sidewall Termination - See page 22 for more detailsFigure 3-2 PVC/CPVC Concentric Sidewall Termi

153 General venting (continued) Installation & Service ManualThis appliance requires a special venting system. Use only approved PVC, CPVC,

3 General venting 16 Installation & Service Manual Minimum / Maximum allowable combustion air and vent piping lengths are as follows:Combust

17 Installation & Operation ManualMaterialsAir inlet pipe materials:The air inlet pipe(s) must be sealed. Choose acceptable combustion air i

Air contamination Pool and laundry products and common household and hobby products often contain fluorine or chlorine compounds. When these chemical

193 General venting (continued) Installation & Service Manual PVC/CPVC:VENTAIRIMG00225Figure 3-7 Near Boiler PVC/CPVC Venting For models 40

2Hazard definitionsThe following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or

20 Installation & Service Manual The installer must use a specific vent starter adapter at the flue collar connection, supplied by the vent m

21 Installation & Service Manual The installer must use a specific vent starter adapter at the flue collar connection, supplied by the vent m

4 Sidewall direct ventingVent/air termination – sidewallFollow instructions below when determining vent location to avoid possibility of severe perso

4 Sidewall direct venting (continued)5. Maintain clearances as shown in FIG.’s 4-1A thru 4-3B, pages 22 and 23. Also maintain the following:a. V

All vent pipes and air inlets must terminate at the same height to avoid possibility of severe personal injury, death, or substantial property damage.

4 Sidewall direct venting (continued) Sidewall termination – optional concentric vent Description and usageThe manufacturer offers optional concentr

4 Sidewall direct venting Sidewall termination – optional concentric vent models Figure 4-8 Concentric Vent Dimensional DrawingInstead of cementing t

274 Sidewall direct venting (continued) Sidewall termination – optional concentric vent Multiventing sidewall terminationsWhen two (2) or more direc

5 Vertical direct ventingVent/air termination – vertical ALTERNATE INTAKE LOCATIONS:INTAKE PIPES MAY BE LOCATEDANYWHERE WITHIN 24” OF VENTPIPEBIRD SC

5 Vertical direct venting (continued) Vent/air termination – vertical 29 Installation & Service Manual Prepare roof penetrations1. Air pip

Installation & Service Manual Please read before proceedingInstaller – Read all instructions, in this manual before installing. Perform ste

5 Vertical direct venting Vertical termination – optional concentric vent Description and usageThe manufacturer offers an optional concentric combust

315 Vertical direct venting (continued) Vertical termination – optional concentric vent Figure 5-6 Concentric Vent Roof Installation Ensure termina

5 Vertical direct venting Alternate vertical concentric ventingThis appliance may be installed with a concentric vent arrangement where the vent pip

Figure 5-10 Existing Vent as a ChaseFLUE EXHAUSTSEALIMG00236SEALEDCAPAIR INLETWITH SCREENSEALEXISTING5 Vertical direct venting (continued) Existing

346 Hydronic pipingSystem water piping methodsThe Cadet heating boiler is designed to function in a closed loop pressurized system not less than 12 p

356 Hydronic piping (continued) Installation & Service ManualNear boiler piping components1. Boiler system piping: Boiler system piping MU

366 Hydronic piping Installation & Service ManualNear boiler piping connectionsVENTAIRY-STRAINER(RECOMMENDED)DOMESTICHOT WATERPUMPCONDENSATE

37Near boiler piping connections (cont’d)VENTAIRY-STRAINER(RECOMMENDED)DOMESTICHOT WATERPUMPCONDENSATEDRAINSYSTEMPUMPBOILER PUMPFROM SYSTEMTO SYSTEMTO

386 Hydronic piping 05101520253002468101240 Model70 Model100 Model120 ModelFLOW RATE (GPM)PRESSURE DROP (FEET OF HEAD)Figure 6-3 Pressure Drop vs. Fl

39Figure 6-4 Single Boiler - Primary / Secondary PipingPlease note that these illustrations are meant to show system piping concept only, the installe

4The Cadet Heating Boiler - How it works...1. Heat exchanger Allows system water to flow through specially designed coils for maximum heat transfer

40Figure 6-5 Single Temperature Zoned with Circulators - DHW PriorityPlease note that these illustrations are meant to show system piping concept only

416 Hydronic piping (continued) Figure 6-6 Multiple Boilers - Single Temperature Zoned with Circulators - DHW PriorityPlease note that these illustr

7 Gas connectionsConnecting gas supply piping1. Remove the front access panel and refer to FIG. 7-1 to pipe gas to the boiler. a. Install a field

7 Gas connections (continued) Failure to apply pipe sealing compound as detailed in this manual can result in severe personal injury, death, or sub

447 Gas connections NominalIron PipeSize (Inches)Natural Gas Pipe Capacity ChartLength of Pipe in Straight Feet for 1/2 PSI10203040506070809010012515

457 Gas connections (continued)  WARNINGWhen re-tightening the set screw, be sure to tighten securely to prevent gas leaks.Do not check for gas lea

8 Field wiring ELECTRICAL SHOCK HAZARD – For your safety, turn off electrical power supply before making any electrical connections to avoid possible

478 Field wiring (continued) Outdoor temperature sensorIn accordance with the United States Energy Policy and Conservation Act, this boiler is equi

488 Field wiring COMNOSYSTEM SUPPLY SENSOR(OPTIONAL)OUTDOOR SENSOR(FACTORY SUPPLIED)TANK SENSOR(OPTIONAL)ROOM THERMOSTAT(FIELD SUPPLIED)TANK THERMOS

498 Field wiring (continued) Installation & Service Manual TANK THERMOSTATROOM THERMOSTAT /ZONE CONTROLFLOW SWITCHSYSTEM SENSOROUTDOOR SEN

IMG002021711231027Front View IMG00204124561618192021252831263027IMG00205FRONT OFBOILER1513141821222629Right Side (inside unit) The Cadet Heating Boile

508 Field wiring Installation & Service ManualLOW VOLTAGE CONNECTIONBOARDBOILER CONTROLMODULEBOILER PUMPDHW PUMPIGNITORBLOWERGAS VALVEDISPL

519 Condensate disposalCondensate drain1. This boiler is a high efficiency appliance that produces condensate.2. The bottom of the boiler has a 3/4

10 Start-upCheck/control water chemistryDo not use petroleum-based cleaning or sealing compounds in the boiler system. Damage to elastomer seals and

5310 Start-up (continued) Check for gas leaksBefore starting the boiler, and during initial operation, smell near the floor and around the boiler f

5410 Start-up Final checks before starting the boiler Read this manual to familiarize yourself with boiler control module operation. Reference pa

10 Start-up (continued) LBL20274 REV AFigure 10-2 Operating Instructions55 Installation & Service Manual

56Please note that the brackets ([]) denote screen status. NOTICE3. Place the boiler into the active position by pressing the UP button for five (5)

5711 Operating information GeneralHow the boiler operatesThe Cadet heating boiler uses an advanced stainless steel heat exchanger and electronic cont

5811 Operating information The control monitors the temperature difference between the inlet and the outlet sensor. If this difference exceeds 55°F

5911 Operating information (continued)User programming sequence Installation & Service ManualAer Timeout Base State ScreenShow Status and T

6RatingsNotes:1. As an Energy Star Partner, the manufacturer has determined that Cadet heating boilers meet the Energy Star guidelines for energy eff

60Installer programming sequence Installation & Service ManualBase State ScreenShow Status and Temperatures ON/OFFPress UP for 5 seconds toei

Installation & Service Manual61Parameter tableTable 11-1 This table lists boiler control module parameters and where to access themViewa

6211 Operating information Installation & Service ManualAccess modesUserPress the ENTER button for 5 seconds.InstallerMost parameters are a

Cadet heating boiler control moduleMODULATION INCREMENTS(20% INCREMENTS) OF FIRING CONTROLDOWN BUTTON“RESET” LOCKOUT OR “SET”FOR CHANGING SETTINGSENT

64Maintenance and annual startupTable 12A Service and Maintenance SchedulesService technician(see the following pages for instructions)General: • Add

12 Maintenance (continued)Follow the Service and maintenance procedures given throughout this manual and in component literature shipped with the boi

Check expansion tank1. Expansion tanks provide space for water to move in and out as the heating system water expands due to temperature increase or

6712 Maintenance (continued) IMG00263BURNER DOORW/ BURNERNUTS(QTY. 4)Figure 12-2 Burner AssemblyCheck flame signal1. At high fire the flame signal s

68The boiler contains ceramic fiber materials. Use care when handling these materials per instructions on page 67. Failure to comply could result in

69 Installation & Service Manual13 TroubleshootingLabel all wires prior to disconnection when servicing controls. Wiring errors can cause i

The Cadet heating boiler gas manifold and controls met safe lighting and other performance criteria when the boiler underwent tests specified in ANSI

70 Installation & Service Manual 13 TroubleshootingTable 13-1 Troubleshooting Chart - No DisplayFAULT CAUSE CORRECTIVE ACTIONNo Display- No

71 Installation & Service Manual13 Troubleshooting (continued)Table 13-2A - Inlet Water/System/DHW Sensor Resistance vs. TemperatureTable 13

72 Installation & Service Manual13 TroubleshootingTable 13-3 Troubleshooting Chart - Noisy SystemFAULT CAUSE CORRECTIVE ACTIONNoisy Operatio

73 Installation & Service Manual13 Troubleshooting (continued)Table 13-4 Troubleshooting Chart - Fault Messages Displayed on Boiler Interfac

74 Installation & Service Manual13 TroubleshootingTable 13-4 (continued from previous page) Troubleshooting Chart - Fault Messages Displayed

75 Installation & Service Manual13 Troubleshooting (continued)Table 13-4 (continued from previous page) Troubleshooting Chart - Fault Messag

76 Installation & Service Manual13 TroubleshootingTable 13-4 (continued from previous page) Troubleshooting Chart - Fault Messages Displayed

77 Installation & Service Manual 13 Troubleshooting (continued)Table 13-4 (continued from previous page) Troubleshooting Chart - Fault Messa

78 Installation & Service Manual 13 TroubleshootingTable 13-4 (continued from previous page) Troubleshooting Chart - Fault Messages Displaye

79 Installation & Service Manual Combustion Analysis Procedure1. Turn the main power off to the boiler.2. Remove the flue temperature senso

IMG002086" MINIMUMTOP1/4" MINIMUM CLEARANCEAROUND HOT WATER PIPES24" SERVICEBOTTOM0" MINIMUMOPEN FRONT24" SERVICE6" MIN

14 Combi80 Installation & Operation Manual The Cadet Combi - How it works...1. DHW pump Begins operation when the domestic flow switch enabl

14 Combi (continued)81 Installation & Service Manual Maximum Domestic Water Pressure 145 PSIDomestic Water Connections 3/4" CopperFlow S

14 Combi82 Installation & Service ManualDHW SENSORFLOW SWITCHIMG00261Connection Board ConfigurationsOJ1 OJ2Standard Altitude,Standard(Non-Com

14 Combi (continued)83 Installation & Service ManualWater pipingField connections are to be made as represented in FIG. 14-3. WARNINGEnsure

8414 Combi Installation & Service Manual Setting DHW target temperature WARNINGAn excessively high DHW temperature set point can result in

8515 Diagrams24 VAC-T-T-T-T-TOUTDOORSENSORTANKSENSORSYSTEMSENSOR123456DISPLAY120VACNEUTRAL GROUND120V SUPPLY "L"120V SUPPLY "N"IN

-T23112 453BLOWERBOX DEPICTSOPTIONAL ITEMSBOX DEPICTSDUAL SENSORSINGLE HOUSING24 VACCOM-T-T-T-THIGH VOLTAGELOW VOLTAGE120 VACHIGH VOLTAGE SPARK LEADCA

24 VAC-T-T-T-T-TOUTDOORSENSORDHW OUTLETSENSORSYSTEMSENSOR123456DISPLAY120VACNEUTRAL GROUND120V SUPPLY "L"120V SUPPLY "N"INTEGRATED

-T23112 453BLOWERNotes:1. All wiring must be installed in accordance with: local, state, provincial and national code requirements per either N.E.C.

89Notes Installation & Service Manual

Provide air openings to room:Cadet heating boiler alone in boiler room1. No air ventilation openings into the boiler room are needed when clearances

90 Installation & Service ManualNotes

91 Installation & Service ManualNotes

Revision A (ECO #C10659) initial release. Revision B (ECO #C11102) reflects outdoor air reset updates along with changes made to Table 3B on page 16