Page 2 - Hazard definitions; DANGER; Contents
2 Hazard definitions The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning the life of the product. DANGER WARNING CAUTION CAUTION NOTICE DANGER indicates an imminently hazardous s...
Page 3 - Installation & Service Manual; Please read before proceeding; Installer –; Read all instructions, in this; User –; This manual is for use only; When servicing boiler –; Thoroughly flush the system (without boiler; Freeze protection fluids –; WHAT TO DO IF YOU SMELL GAS; Installation and service must be
Installation & Service Manual Please read before proceeding Installer – Read all instructions, in this manual before installing. Perform steps in the order given. User – This manual is for use only by a qualified heating installer/service technician. Refer to the User’s Information Manual for yo...
Page 4 - CAUTION
4 The Cadet Heating Boiler - How it works... 1. Heat exchanger Allows system water to flow through specially designed coils for maximum heat transfer, while providing protection against flue gas corrosion. The coils are encased in a jacket that contains the combustion process. 2. Combustion chamber ...
Page 5 - Front View; FRONT OF; Bottom View
IMG00202 17 11 23 10 27 Front View IMG00204 1 2 4 5 6 16 18 19 20 21 25 28 31 26 30 27 IMG00205 FRONT OF BOILER 15 13 14 18 21 22 26 29 Right Side (inside unit) The Cadet Heating Boiler - How it works... (continued) 5 Models 40 - 120 Installation & Service Manual Bottom View Left Side (inside un...
Page 6 - Ratings; only; Cadet Heating Boiler; Other Specifications; Figure A High Altitude Label Location
6 Ratings Notes: 1. As an Energy Star Partner, the manufacturer has determined that Cadet heating boilers meet the Energy Star guidelines for energy efficiency. 2. The ratings are based on standard test procedures prescribed by the United States Department of Energy. 3. Net AHRI ratings are based on...
Page 7 - Determine boiler location
The Cadet heating boiler gas manifold and controls met safe lighting and other performance criteria when the boiler underwent tests specified in ANSI Z21.13 – latest edition. Failure to keep boiler area clear and free of combustible materials, gasoline, and other flammable liquids and vapors can res...
Page 8 - Figure 1-2 Alcove Installation - Minimum Required Clearances; WARNING
IMG00208 6" MINIMUM TOP 1/4" MINIMUM CLEARANCEAROUND HOT W ATER PIPES 24" SERVICE BOTTOM 0" MINIMUM OPEN FRONT 24" SERVICE6" MINIMUM FRONT " MINIMUM CLEARANCE ROUND VENT PIPE RIGHT12” SERVICE0" MINIMUM LEFT12" SERVICE0" MINIMUM Figure 1-2 Alcove Installation -...
Page 9 - Provide air openings to room:; Cadet heating boiler alone in boiler room; No air ventilation openings into the boiler room are; Wall mounting location; Precautions; Vent and air piping
Provide air openings to room: Cadet heating boiler alone in boiler room 1. No air ventilation openings into the boiler room are needed when clearances around the Cadet heating boiler are at least equal to the SERVICE clearances shown in FIG.’s 1-1 and 1-2. For spaces that do NOT supply this clearanc...
Page 10 - When using an existing vent system to; Areas likely to have contaminants; Table 1A Corrosive Contaminants and Sources
Failure to follow all instructions can result in flue gas spillage and carbon monoxide emissions, causing severe personal injury or death. WARNING When using an existing vent system to install a new boiler: Check the following venting components before installing: • Material - For materials listed...
Page 11 - When removing a boiler from existing common vent system:
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 will cause flue gas spillage or appliance malfunction, resulting in possible severe personal injury, death, or substantial property damage. Failure to fo...
Page 12 - Prepare boiler; Remove boiler from wood pallet; LP Conversion Table; Table 2A LP Conversion Table; Figure 2-2 Gas Conversion Label Location
2 Prepare boiler 12 Remove boiler from wood pallet 1. After removing the outer shipping carton from the boiler, remove the parts box. 2. To remove the boiler from the pallet: a. Remove the two (2) lag bolts securing the bottom of the unit to the pallet. b. Lift the boiler off the wall bracket mounte...
Page 13 - Figure 2-4 Boiler Mounted on Shipping Pallet; Figure 2-5 Mounting the Boiler; Mounting the boiler; Figure 2-3 Acceptable Lifting Locations
Do not drop the boiler. Damage to the boiler can result. REMOVE SHIPPING[W ALL] BRACKET DO NOT DISCARD-W ILL BE NEEDED TOSECURE THE BOILERTO THE W ALL IMG00212 Figure 2-4 Boiler Mounted on Shipping Pallet NOTICE 2 Prepare boiler (continued) FASTENERS APPROPRIATEFOR W ALL TYPE QTY: 4 MOUNTING BRACKET...
Page 14 - Direct venting options - Sidewall Vent; Direct venting options - Vertical Vent
3 General venting IMG00267 IMG00219 Figure 3-1 Two-Pipe Sidewall Termination - See page 22 for more details Figure 3-2 PVC/CPVC Concentric Sidewall Termination - See page 25 for more details Direct venting options - Sidewall Vent IMG00220 IMG00223 Figure 3-3 Two-Pipe Vertical Termination - See page ...
Page 15 - Install vent and combustion air piping; Air intake/vent connections; Combustion Air Intake Connector; Figure 3-6 Near Boiler Air Piping
15 3 General venting (continued) Installation & Service Manual This appliance requires a special venting system. Use only approved PVC, CPVC, polypropylene or stainless steel pipe and fittings listed in Tables 3C, 3D, and 3F for vent pipe, and fittings. Failure to comply could result in severe p...
Page 16 - General venting; Minimum / Maximum allowable combustion; Combustion Air; = 7 equivalent feet minimum / 100 equivalent; Vent; = 7 equivalent feet minimum / 100 equivalent feet; Model; Sizing; Table 3A Air Intake/Vent Piping Sizes; NOTICE; Model
3 General venting 16 Installation & Service Manual Minimum / Maximum allowable combustion air and vent piping lengths are as follows: Combustion Air = 7 equivalent feet minimum / 100 equivalent feet maximum Vent = 7 equivalent feet minimum / 100 equivalent feet maximum When determining equivalen...
Page 17 - Installation & Operation Manual; Materials; Air inlet pipe materials:; General
17 Installation & Operation Manual Materials Air inlet pipe materials: The air inlet pipe(s) must be sealed. Choose acceptable combustion air inlet pipe materials from the following list: PVC, CPVC, Polypropylene or ABS Galvanized steel vent pipe with joints and seams sealed as specified in this...
Page 18 - Optional room air; Table 3C Optional Room Air Kit
Air contamination Pool and laundry products and common household and hobby products often contain fluorine or chlorine compounds. When these chemicals pass through the boiler, they can form strong acids. The acid can eat through the boiler wall, causing serious damage and presenting a possible threa...
Page 19 - Installing vent and air piping; Table 3D PVC/CPVC Vent Pipe, and Fittings; Approved PVC/CPVC Vent Pipe and Fittings; PVC Schedule 40
19 3 General venting (continued) Installation & Service Manual PVC/CPVC: VENT AIR IMG00225 Figure 3-7 Near Boiler PVC/CPVC Venting For models 40 - 100 when transitioning from 2" to 3" vent diameter, a 2" pipe section and 2" to 3" increaser are required to be CPVC when PVC/CPV...
Page 20 - Figure 3-8 Near Boiler Polypropylene Venting Model 120; Centrotherm InnoFlue SW; Table 3F Approved PolypropyleneTerminations and Adapters
20 Installation & Service Manual The installer must use a specific vent starter adapter at the flue collar connection, supplied by the vent manufacturer to adapt to its vent system. See Table 3F for approved vent adapters. Discard CPVC starter piece. NOTICE IMG00257 POLYPROPYLENE ADAPTERW / FLUE...
Page 21 - Table 3G Stainless Steel Vent Pipe and Fittings; Stainless steel vent:; Figure 3-9 Near Boiler Stainless Steel Venting; ProTech; FasNSeal
21 Installation & Service Manual The installer must use a specific vent starter adapter at the flue collar connection, supplied by the vent manufacturer to adapt to its vent system. See Table 3H for approved vent adapters. Discard CPVC starter piece. NOTICE Table 3G Stainless Steel Vent Pipe and...
Page 22 - Vent/air termination – sidewall; Determine location; Table 4A Alternate Sidewall Vent Kit
4 Sidewall direct venting Vent/air termination – sidewall Follow instructions below when determining vent location to avoid possibility of severe personal injury, death, or substantial property damage. A gas vent extending through an exterior wall shall not terminate adjacent to a wall or below buil...
Page 23 - Sidewall direct venting
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. Vent must terminate: • At least 6 feet from adjacent walls. • No closer than 12 inches below roof overhang. • At least 7 feet above any public walkway. • At...
Page 24 - Multiple vent/air terminations; Prepare wall penetrations
All vent pipes and air inlets must terminate at the same height to avoid possibility of severe personal injury, death, or substantial property damage. Multiple vent/air terminations 1. When terminating multiple boilers terminate each vent/ air connection as described in this manual (FIG. 4-5A). 2. P...
Page 25 - Sidewall termination – optional concentric vent; Description and usage; Figure 4-7 Kit Contents; Sidewall termination installation; Determine the best location for the termination kit (see
4 Sidewall direct venting (continued) Sidewall termination – optional concentric vent Description and usage The manufacturer offers optional concentric combustion air and vent pipe termination kits (Factory Kit #CVK3003 - 3" or #CVK3008 - 2"). Both combustion air and vent pipes must attach t...
Page 26 - Sidewall termination – optional concentric vent models; Figure 4-8 Concentric Vent Dimensional Drawing
4 Sidewall direct venting Sidewall termination – optional concentric vent models Figure 4-8 Concentric Vent Dimensional Drawing Instead of cementing the smaller pipe to the rain cap, a field-supplied stainless steel screw may be used to secure the two (2) components together when field disassembly i...
Page 27 - Multiventing sidewall terminations; Figure 4-11 Concentric Vent and Combustion Air Termination
27 4 Sidewall direct venting (continued) Sidewall termination – optional concentric vent Multiventing sidewall terminations When two (2) or more direct vent appliances are vented near each other, each appliance must be individually vented (see FIG. 4-11). NEVER common vent or breach vent this applia...
Page 28 - Vertical direct venting; Vent/air termination – vertical; Vertical
5 Vertical direct venting Vent/air termination – vertical ALTERNATE INTAKE LOCATIONS:INTAKE PIPES MAY BE LOCATEDANYWHERE WITHIN 24” OF VENTPIPE BIRD SCREEN(TYPICAL) COUPLING(FIELD SUPPLIED) VENT OUTLET12” MINIMUMABOVE AIR INLET 6” MINIMUMABOVE ROOF /SNOW LINE VENT COMBUSTION AIR Figure 5-1A PVC/CPVC...
Page 29 - Prepare roof penetrations; Figure 5-2 Vertical Terminations with Multiple Boilers
5 Vertical direct venting (continued) Vent/air termination – vertical 29 Installation & Service Manual Prepare roof penetrations 1. Air pipe penetration: a. Cut a hole for the air pipe. Size the air pipe hole as close as desired to the air pipe outside diameter. 2. Vent pipe penetration: a. Cut ...
Page 30 - Vertical termination – optional concentric vent; Vertical termination installation; Partially assemble the concentric vent termination kit.; Figure 5-5 Do Not Install U-Bend to Rain Cap
5 Vertical direct venting Vertical termination – optional concentric vent Description and usage The manufacturer offers an optional concentric combustion air and vent pipe termination kit. Both combustion air and vent pipes must attach to the termination kit. The termination kit must terminate outsi...
Page 31 - Figure 5-6 Concentric Vent Roof Installation
31 5 Vertical direct venting (continued) Vertical termination – optional concentric vent Figure 5-6 Concentric Vent Roof Installation Ensure termination height is above the roof surface or anticipated snow level (12 inches in U.S.A. or 18 inches in Canada) as shown in FIG. 5-4, page 30. If assembly ...
Page 32 - Alternate vertical concentric venting; Concentric Venting Arrangement; must be; sealed to ensure that; Table 5A Alternate Vertical Concentric Vent / Chase Sizes; Figure 5-8 Concentric Vent Example 1; Figure 5-9 Concentric Vent Example 2
5 Vertical direct venting Alternate vertical concentric venting This appliance may be installed with a concentric vent arrangement where the vent pipe is routed through an existing unused venting system; or by using the existing unused venting system as a chase for vent and combustion air routing. C...
Page 33 - Figure 5-10 Existing Vent as a Chase; Existing vent as a chase
Figure 5-10 Existing Vent as a Chase FLUE EXHAUST SEAL IMG00236 SEALEDCAP AIR INLETW ITH SCREEN SEAL EXISTING 5 Vertical direct venting (continued) Existing vent as a chase Follow all existing termination and clearance requirements and allowable pipe lengths. Use only approved venting materials list...
Page 34 - Hydronic piping; System water piping methods; General piping information
34 6 Hydronic piping System water piping methods The Cadet heating boiler is designed to function in a closed loop pressurized system not less than 12 psi. A temperature and pressure gauge is included to monitor system pressure and outlet temperature and should be located on the boiler outlet. It is...
Page 35 - Near boiler piping components; isolation
35 6 Hydronic piping (continued) Installation & Service Manual Near boiler piping components 1. Boiler system piping: Boiler system piping MUST be sized per the pipe requirements listed in Table 6A. Reducing the pipe size can restrict the flow rate through the boiler, causing inadvertent high li...
Page 36 - Near boiler piping connections
36 6 Hydronic piping Installation & Service Manual Near boiler piping connections VENT AIR Y-STRAINER (RECOMMENDED) DOMESTICHOT W ATERPUMP CONDENSATEDRAIN SYSTEMPUMP BOILER PUMP FROM SYSTEM TO SYSTEM TO FROM INDIRECT DOMESTICHOT W ATER TANK TO FLOOR DRAIN AIR SEPARATOR EXPANSION TANK IMG00237 CH...
Page 37 - Figure 6-2B Near Boiler Piping w/Low Loss Header; Circulator sizing
37 Near boiler piping connections (cont’d) VENT AIR Y-STRAINER (RECOMMENDED) DOMESTICHOT W ATERPUMP CONDENSATEDRAIN SYSTEMPUMP BOILER PUMP FROM SYSTEM TO SYSTEM TO FROM INDIRECT DOMESTICHOT W ATER TANK TO FLOOR DRAIN AIR SEPARATOR EXPANSION TANK LOW LOSS HEADER IMG00238 CHECKVALVE Figure 6-2B Near B...
Page 38 - 0°F Temperature Rise Applications; *Only pump supplied w/boiler is DHW pump on 120 Combi version.
38 6 Hydronic piping 0 5 10 15 20 25 30 0 2 4 6 8 10 12 40 Model 70 Model 100 Model 120 Model FLOW RATE (GPM) PRESSURE DROP (FEET OF HEAD) Figure 6-3 Pressure Drop vs. Flow 20°F Temperature Rise Applications Model GPM FT/HD Minimum Pipe Size Pump Grundfos TACO B & G Armstrong 40 3.7 10.2 3/4"...
Page 42 - Gas connections; Connecting gas supply piping; Figure 7-1 Gas Supply Piping
7 Gas connections Connecting gas supply piping 1. Remove the front access panel and refer to FIG. 7-1 to pipe gas to the boiler. a. Install a field supplied sediment trap / drip leg upstream of the boiler gas controls. MANUAL SHUTOFF VALVE UNION DRIP LEG GAS SUPPLY IMG00242 Figure 7-1 Gas Supply Pip...
Page 43 - Figure 7-2 Inlet Pipe with Backup Wrench
7 Gas connections (continued) Failure to apply pipe sealing compound as detailed in this manual can result in severe personal injury, death, or substantial property damage. Cadet heating boilers are typically shipped ready to fire on natural gas. Check boiler rating plate to determine which fuel the...
Page 44 - Nominal; Natural Gas Pipe Capacity Chart; Table 7A Natural Gas Pipe Size Chart; Check inlet gas supply
44 7 Gas connections Nominal Iron Pipe Size (Inches) Natural Gas Pipe Capacity Chart Length of Pipe in Straight Feet for 1/2 PSI 10 20 30 40 50 60 70 80 90 100 125 150 175 200 1/2 175 120 97 82 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 3/4 369 256 205 174 155 141 128 121 113 106 95 86 79 74 1 697 477 ...
Page 45 - Gas Pressure; DETAIL; Figure 7-3 Inlet Gas Supply Check
45 7 Gas connections (continued) WARNING When re-tightening the set screw, be sure to tighten securely to prevent gas leaks. Do not check for gas leaks with an open flame -- use the bubble test. Failure to use the bubble test or check for gas leaks can cause severe personal injury, death, or subst...
Page 46 - Field wiring; Installation must comply with:; Figure 8-1 Remove Metal Junction Box Cover; Low voltage connections; Figure 8-2 Routing Field Wiring; Line voltage connections
8 Field wiring ELECTRICAL SHOCK HAZARD – For your safety, turn off electrical power supply before making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death. Wiring must be N.E.C. Class 1. If original wiring as supplied with ...
Page 48 - Figure 8-3 Low Voltage Field Wiring Connections
48 8 Field wiring CO M NO SY ST EM SUPPLY S E NS OR (OPTIONAL) O U T D OO R S E NS OR (FACTORY SUPPLIED) T A NK SENS O R (OPTIONAL) ROO M T H E R MOST AT (FIELD SUPPLIED) TA N K TH E R M O S T A T (FIELD SUPPLIED) FLOW SW IT CH (FIELD SUPPLIED) AUX ILIARY LI M IT (FIELD SUPPLIED) LOW W A TER CU T O ...
Page 49 - BOILER CONTROL; Figure 8-4 Control Inputs
49 8 Field wiring (continued) Installation & Service Manual TANK THERMOSTAT ROOM THERMOSTAT / ZONE CONTROL FLOW SWITCH SYSTEM SENSOR OUTDOOR SENSOR LOW VOLTAGE CONNECTION BOARD INLET TEMPERATURE SENSOR OUTLET TEMPERATURE / HIGH LIMIT SENSOR FLUE GAS SENSOR FLAME SENSOR LOW W ATER CUTOFF DISPLAY ...
Page 50 - Figure 8-5 Control Outputs
50 8 Field wiring Installation & Service Manual LOW VOLTAGE CONNECTION BOARD BOILER CONTROL MODULE BOILER PUMP DHW PUMP IGNITOR BLOWER GAS VALVE DISPLAY PANEL IMG00259 Figure 8-5 Control Outputs
Page 51 - Condensate disposal; Condensate drain; CONDENSATE TRAP; Figure 9-1 Condensate Disposal
51 9 Condensate disposal Condensate drain 1. This boiler is a high efficiency appliance that produces condensate. 2. The bottom of the boiler has a 3/4 inch pipe for connection of a 3/4 inch PVC pipe (FIG. 9-1). 3. Slope condensate tubing down and away from the boiler into a drain or condensate neut...
Page 52 - Check/control water chemistry; Hardness less than 7 grains; Fill and test water system
10 Start-up Check/control water chemistry Do not use petroleum-based cleaning or sealing compounds in the boiler system. Damage to elastomer seals and gaskets in the system could occur, resulting in substantial property damage. Hardness less than 7 grains 1. Consult local water treatment companies f...
Page 53 - Inspect/check condensate lines and fittings; Figure 10-2 Condensate Trap; Purge air from heat exchanger; Figure 10-1 Manual Air Vent
53 10 Start-up (continued) Check for gas leaks Before starting the boiler, and during initial operation, smell near the floor and around the boiler for gas odorant or any unusual odor. Remove the front access panel and smell the interior of the boiler enclosure. Do not proceed with startup if there ...
Page 55 - Figure 10-2 Operating Instructions
10 Start-up (continued) LBL20274 REV A Figure 10-2 Operating Instructions 55 Installation & Service Manual
Page 56 - Table 10A Flue Products Chart
56 Please note that the brackets ([]) denote screen status. NOTICE 3. Place the boiler into the active position by pressing the UP button for five (5) seconds (FIG. 11-1, page 63). 4. Press ENTER plus the UP button for 5 seconds to enter Service Mode. 5. Insert the probe from a combustion analyzer i...
Page 57 - Operating information; How the boiler operates
57 11 Operating information General How the boiler operates The Cadet heating boiler uses an advanced stainless steel heat exchanger and electronic control module that allows fully condensing operation. The blower pulls in air and pushes flue products out of the boiler through the heat exchanger and...
Page 58 - Boiler temperature regulation; Outdoor reset operation
58 11 Operating information The control monitors the temperature difference between the inlet and the outlet sensor. If this difference exceeds 55°F the control will reduce the maximum fan speed. If the temperature difference exceeds 60°F the control will shut the unit down. The unit will restart au...
Page 59 - User programming sequence; Base State Screen
59 11 Operating information (continued) User programming sequence Installation & Service Manual Aer Timeout Base State Screen Show Status and Temperatures (Default is Outlet Temperature) ON/OFF Press UP for 5 seconds to either Turn On or Off Unit Press ENTER for 5 seconds toEnter User Parameters...
Page 60 - Installer programming sequence
60 Installer programming sequence Installation & Service Manual Base State Screen Show Status and Temperatures ON/OFF Press UP for 5 seconds to either Turn On or Off Press ENTER & DOWN for 5 seconds to Enter Installer Menu Press ENTER - Set Outdoor Shutdown Temperature - Press UP or DOWN to ...
Page 61 - Parameter table; Code
Installation & Service Manual 61 Parameter table Table 11-1 This table lists boiler control module parameters and where to access them Viewable and changeable control parameters Temperature Units (°C/°F) The control can be configured to display temperature in either °C or °F. This parameter can ...
Page 62 - Access modes; User; Press the ENTER button for 5 seconds.; Installer; Saving parameters; (reference the Parameter Table; To save parameters and exit programming:; Table 11-2 Lockout, Blocking and Notification Codes
62 11 Operating information Installation & Service Manual Access modes User Press the ENTER button for 5 seconds. Installer Most parameters are available only to the installer, accessible by entering the installer key combination: Press the ENTER and DOWN buttons simultaneously for 5 seconds. Sa...
Page 63 - Cadet heating boiler control module; MODULATION INCREMENTS; Figure 11-1 Control Panel Indicators
Cadet heating boiler control module MODULATION INCREMENTS (20% INCREMENTS) OF FIRING CONTROL DOWN BUTT ON “RESET” LOCKOUT OR “SET” FOR CHANGING SETTINGS ENTER BUTT ON RESET BUTT ON SER VICE MODE FREEZE PROTECTION DOMESTIC HOT W A TER PUMP DOMESTIC HOT W A TER DEMAND SP ACE HEA T DEMAND BOILER PUMP D...
Page 64 - Maintenance and annual startup; Table 12A Service and Maintenance Schedules; Service technician; (see the following pages for instructions); Owner maintenance; (see the Cadet Heating Boiler User’s Information; Maintenance
64 Maintenance and annual startup Table 12A Service and Maintenance Schedules Service technician (see the following pages for instructions) General: • Address reported problems • Inspect interior; clean and vacuum if necessary; • Clean condensate trap • Check for leaks (water, gas, flue, condensate)...
Page 65 - Figure 12-1 Condensate Trap
12 Maintenance (continued) Follow the Service and maintenance procedures given throughout this manual and in component literature shipped with the boiler. Failure to perform the service and maintenance could result in damage to the boiler or system. Failure to follow the directions in this manual an...
Page 67 - Figure 12-2 Burner Assembly; Check flame signal; Handling ceramic fiber materials; REMOVAL OF COMBUSTION CHAMBER; NIOSH stated First Aid.
67 12 Maintenance (continued) IMG00263 BURNER DOORW / BURNER NUTS(QTY. 4) Figure 12-2 Burner Assembly Check flame signal 1. At high fire the flame signal shown on the display should be at least 10 microamps. 2. A lower flame signal may indicate a fouled or damaged flame sense electrode. If cleaning ...
Page 68 - Cleaning boiler heat exchanger; Oiled bearing circulators; Table 12B Heat Exchanger Cleaning Kit; Figure 12-3 Rope Gasket - Heat Exchanger Door
68 The boiler contains ceramic fiber materials. Use care when handling these materials per instructions on page 67. Failure to comply could result in severe personal injury. WARNING Cleaning boiler heat exchanger For recommended materials; including brush, appropriate extension(s), refractory cove...
Page 69 - Troubleshooting; Before troubleshooting:; Figure 13-1 Control Module Fuses
69 Installation & Service Manual 13 Troubleshooting Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Always disconnect power to the boiler before servicing. Failure to comply could result in severe personal injury, death, o...
Page 70 - Table 13-1 Troubleshooting Chart - No Display; FAULT; No Display
70 Installation & Service Manual 13 Troubleshooting Table 13-1 Troubleshooting Chart - No Display FAULT CAUSE CORRECTIVE ACTION No Display - No 120 vac supplied to unit. • Check external line switch, fuse, or breaker. • Check wiring harness connection between display board and main control board...
Page 71 - Checking temperature sensors; Temperature Resistance Temperature Resistance
71 Installation & Service Manual 13 Troubleshooting (continued) Table 13-2A - Inlet Water/System/DHW Sensor Resistance vs. Temperature Table 13-2B - Outdoor Air Sensor Resistance vs. Temperature Checking temperature sensors The boiler temperature sensors (inlet water, outlet water, system water,...
Page 72 - Table 13-3 Troubleshooting Chart - Noisy System
72 Installation & Service Manual 13 Troubleshooting Table 13-3 Troubleshooting Chart - Noisy System FAULT CAUSE CORRECTIVE ACTION Noisy Operation - Supply gas problem. Natural gas pressures should be between 4 inches w.c. and 14 inches w.c. LP gas pressures should be between 8 inches w.c. and 14...
Page 73 - ERROR CODE
73 Installation & Service Manual 13 Troubleshooting (continued) Table 13-4 Troubleshooting Chart - Fault Messages Displayed on Boiler Interface ERROR CODE DESCRIPTION CORRECTIVE ACTION E00 Invalid lockout code. • Reset control module. • Switch power OFF and ON. • Replace control module. E01 The ...
Page 79 - Combustion Analysis Procedure; Table 3-6 Troubleshooting Chart - Combustion Levels; POSSIBLE CAUSE; Vent/Air Intake Length; Gas Supply Pressure; Gas Valve Adjustment; Table 13-5 Flue Products; Natural Gas; Gas valve adjustment procedure; counterclockwise; Figure 13-2 Gas Valve Adjustment
79 Installation & Service Manual Combustion Analysis Procedure 1. Turn the main power off to the boiler.2. Remove the flue temperature sensor from the flue pipe connection. Note: Combustion measurements will be made at this point. 3. Insert the probe from a combustion analyzer into the hole left...
Page 80 - Combi; pump
14 Combi 80 Installation & Operation Manual The Cadet Combi - How it works... 1. DHW pump Begins operation when the domestic flow switch enables demand. An integral flow check prevents flow of the boiler water while in the space heat demand. 2. Brazed plate heat exchanger Transfers heat from the...
Page 81 - Domestic Flow Rate; Section 11 - Operating Information; Uniform Plumbing Code; Figure 14-1 Combi DHW Fittings Installation
14 Combi (continued) 81 Installation & Service Manual Maximum Domestic Water Pressure 145 PSI Domestic Water Connections 3/4" Copper Flow Switch Setting 0.53 GPM Basic operation The factory installed option of the Cadet with domestic heating capability includes a separate water circuit for t...
Page 82 - Figure 14-2 Combi Low Voltage Field Wiring Connections
14 Combi 82 Installation & Service Manual DH W SENS O R FLO W SW IT CH IM G00 261 Connection Board Configurations OJ1 OJ2 Standard Altitude,Standard (Non-Combi) Cut Connected Standard Altitude, Combi Cut Cut High Altitude, Standard (Non-Combi) Connected Connected High Altitude, Combi Connected C...
Page 83 - Water piping; Field connections are to be made as represented in FIG. 14-3.
14 Combi (continued) 83 Installation & Service Manual Water piping Field connections are to be made as represented in FIG. 14-3. WARNING Ensure that plumbing and electrical installation are complete and supply gas is turned OFF. On initial startup, bleed air from the system with the manual air...
Page 84 - Setting DHW target temperature
84 14 Combi Installation & Service Manual Setting DHW target temperature WARNING An excessively high DHW temperature set point can result in serious injury. The minimum effective temperature should be used. Verify the installed anti-scald device requirements to determine an appropriate DHW tem...
Page 85 - Diagrams
85 15 Diagrams 24 VAC -T -T -T -T -T OUTDOOR SENSOR TANK SENSOR SYSTEM SENSOR 1 2 3 4 5 6 DISPLAY 120VAC NEUTRAL GROUND 120V SUPPLY "L" 120V SUPPLY "N" INTEGRATED CONTROL JUNCTION BOX DHW PUMP "L" BOILER PUMP "L" BOILER PUMP DHW PUMP DHW PUMP "N" BOILER PUMP &...
Page 89 - Notes
Cadet CT402
Manual
Cadet C
Manual
Cadet CBC103TW
Manual
Cadet EBHN1250
Manual
Cadet RM162
Manual
Cadet 1600
Manual
Cadet 8F2025
Manual
Cadet CGH562
Manual