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Installation, Operation and Maintenance Instructions
FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,
qualified in hot water boiler installation and maintenance. Improper installation and/or operation could
create carbon monoxide gas in flue gases which could cause serious injury, property damage, or death.
Improper installation and/or operation will void the warranty.
WARNING
If the information in this manual is not
followed exactly, a fire or explosion may
result causing property damage, personal
injury or loss of life.
Do not store or use gasoline or other
flammable vapors and liquids in the vicinity
of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not
use any phone in your building.
• Immediately call your gas supplier from a
nearby phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call
the fire department.
Installation and service must be performed by a
qualified installer, service agency, or gas
supplier.
For sales, parts and service, call 781-961-1660
Installation,
Operation and
Maintenance
Instructions for
EBP Series Modulating Combination Boiler
EDP Series Modulating Hydronic Boiler
EDN Series Modulating Boiler, non ferrous
P.O. Box 310
Lynnfield, MA 01940
Phone: 781-961-1660
Fax: 781-334-2541
(natural or propane gas)
(natural or propane gas)
(natural or propane gas)
AVERTISSEMENT
Assurez-vous de bien suivres les instructions
données dans cette notice pour réduire au
minimum le risque d'incendie ou d'explosion ou
pour éviter tout dommage matériel, toute
blessure ou la mort.
Ne pas entreposer ni utiliser d'essence ni
d'autres vapeurs ou liquides inflammables dans
le voisinage de cet appareil ou de tout autre
appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
• Ne pas tenter d'allumer d'appareils.
• Ne touchez à aucun interrupteur. Ne pas vous
servir des téléphones dansle bâtiment où vous
vous trouvez.
• Appelez immédiatement votre fournisseur de
gaz depuis un voisin. Suivez les instructions
du fournisseur.
• Si vous ne pouvez rejoindre le fournisseur de
gaz, appelez le sservice des incendies.
L'installation et l'entretien doivent être assurés par
un installateur ou un service d'entretien qualifié ou
par le fournisseur de gaz.
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Summary of Contents for Endurance EDP/EDN
- Page 1 For sales, parts and service, call 781-961-1660 Installation, Operation and Maintenance Instructions FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician, qualified in hot water boiler installation and maintenance. Improper installation and/or operation could create carbon monoxide gas in flue gases which could cause serious injury, property damage, or death.
-
Page 2: Table Of Contents
Board (PCB) ... 19 Igniter / Flame Sensor Assembly ... 20 Transformer ... 20 Blower ... 20 Transfer Tank (EBP only) ... 20 Thermostatic Union (EDP/EDN only) ... 20 Cleaning the Boiler Coil ... 20 SECTION 8. Servicing Sequence of Operation ... 21 Trouble Shooting - Fault Codes ... -
Page 3: General Information
Domestic water is heated by the boiler water through a stainless steel plate heat exchanger. EDP/EDN - This appliance is a low pressure, direct vent, cold start hot water boiler that provides heat for hydronic space heating. -
Page 4: Unpacking The Appliance
Page 4 The CSA standard C22.1 “Canadian Electrical Code - Part 1” and local codes. All vent installations must be made in accordance with: Part 7, Venting of Equipment of the National Fuel Gas Code, ANSI 223.1 latest edition, or applicable provisions of the local building codes or CAN/CGA B149. - Page 5 Endurance Page 5 Figure 3. Part number 2400-500 provides all of the required venting materials for appliance installations adjacent to an outside wall and for installation of wall mounted units. Requires minimum above unit clearance of 13" (330mm) and provides maximum horizontal length of 24" from unit center line to outside wall face. Figure 4.
- Page 6 LAARS HEATING SYSTEMS Page 6 Figure 5. Part number 2400-328 provides all of the required venting materials for appliance installations that require adjustable horizontal run, but a short vertical run. It requires minimum above unit clearance of 13" (330mm) and provides for an adjustable horizontal run of 2' to 3-1/2' (0.6 to 1.1m).
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Page 7: Stainless Steel Single Pipe Horizontal And Vertical Vents
Endurance Figure 7. For Appliances Certified as Direct Vent. Figure 8. Typical vent installation with 18" or less overhead clearance to outside. Figure 9. Multiple Concentric Vent Clearances. When appliances are used, the concentric vent terminals must be at least 12" apart, edge-to-edge (see Figure "term"). -
Page 8: Connecting Special Gas Vent To The Appliance
Page 8 Figure 10. Special Gas Vent Connection. Figure 11. Non-Concentric Combustion Air Source. (6.5 sq. cm) per 1,000 BTU/hr (293W) boiler input, but not be less than 100 square inches (645.2 sq. cm). These openings shall freely connect with areas having adequate infiltration from outside. -
Page 9: Domestic Water Piping (Ebp Only)
Endurance Length of Pipe 1/2" MBTU/h 12.2 15.2 22.9 30.5 45.7 Run gas supply line in accordance with all applicable codes. Locate and install manual shutoff valves in accordance with state and local requirements. Install drip leg, ground joint union and drip cap to trap sediment and for test gauge access. -
Page 10: Hydronic Heat Piping
¾" baseboard each), and model 175 is capable of providing flow for four heating zones (up to 67 feet of ¾" baseboard, each). EDP/EDN boilers installed in radiant (in floor) systems and other low mass boilers should be provided with a buffer/blender tank to assure a controlled supply temperature, and to prevent short cycling. - Page 11 Endurance Page 11 Figure 15. Hydronic Piping EDP/EBP with Zone Valves. Figure 16. Piping, Single EDP/EBP Boiler for Multiple Temperature Systems. Figure 17. Piping, Model “EDP/EDN” for Radiant Floor.
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Page 12: Cooling System
Page 12 Figure 18. Hydronic Piping EBP/EDP for Systems Zoned with Circulators. Figure 19. Hydronic Piping EDP for Low-Temp and/or Multi-Temp Systems. or zone circulators) in the same manner as any other residential boiler. Caution The EBP/EDP appliance must not be direct connected to a heating system utilizing oxygen permeable tubing (see warranty). -
Page 13: Water Quality And Treatment
Endurance 4C. Water Quality and Treatment Water quality control is steadily increasing in importance in view of the use of modern regulation technology and the modern boiler designs used in central heating systems. The life of a central heating boiler can be severely curtailed as a result of the formation of scale deposits and/or corrosion products. - Page 14 Page 14 Multi zone/Multi-relay-circulator Installations: Multiple circulators must not exceed 5 amps total when connected to blue wire (see Figure 24). Figure 23. Multiple Zones with Three Wire Zone Valves (Requires Isolation Relay). Figure 24. Multiple Zones with Circulators and Room Thermostats. Figure 25.
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Page 15: For Your Safety Read Before Operating
Endurance FOR YOUR SAFETY READ BEFORE OPERATING If you do not follow these instructions exactly, a fire or explosion may result, causing property damage, personal injury or loss of life. A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. -
Page 16: Notice D'utilisation
Page 16 PAR MESURE DE PRUDENCE, LISEZ CE QUI SUIT AVANT DE FAIRE FONCTIONNER L’APPAREIL Si vous ne suivez pas ces instructions à la lettre, un incendie ou une explosion pourrait se produire et causer des dommages matériels, des blessures personnelles ou même la mort. Cet appareil n’est pas doté... -
Page 17: Boiler Start-Upp
Endurance SECTION 6. Boiler Start Up 6A. Common Vent Test At the time of removal of an existing boiler, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation. -
Page 18: Filling The System
Page 18 d’obstruction, d’étranglement, de fuite, de corrosion et autres défaillances qui pourraient présenter des risques. Dans la mesure du possible, fermer toutes les portes et les fenêtres du bâtiment et toutes les portes entre l’espace, où les appareils tojours raccordés et les autres espaces du bâtiment. -
Page 19: Mode And On/Off Buttons Operation
Endurance The appliance will attempt to ignite three times, if ignition is not successful, the appliance will lock out and display [ ]. Ignition reset is done by pressing the reset button on top of the control panel. EBP models will then operate to heat the transfer tank. -
Page 20: Igniter / Flame Sensor Assembly
Installation of the new tank is done in the reverse order. After installation purge all air from the boiler before restarting. 7I. Thermostatic Union (EDP/EDN) The thermostatic union is a 1¼" NPTF union which must be mounted at the flow outlet to control boiler temperature. -
Page 21: Servicing
8A. Sequence of Operation Figures 22 and 23 depict the flow paths and temperature sensor locations for the space heating, EDP/EDN, and the combined space heating and domestic water heating, EBP, appliances. The model EDP/EDN modulating boilers are cold start boilers that will start only on a call for heat from a room thermostat or zone control contact. -
Page 22: Trouble Shooting - Fault Codes
[Service note: as with the thermostatic union in the EDP/EDN models, the anti-condensing valve prevents condensation on the combustion chamber coil and must be in the closed position when the coil inlet (F6) indicates a temperature below 130°F]. -
Page 23: Power Up Fault Tree
Endurance Page 23 POWER UP FAULT TREE... -
Page 24: Ignition Fault Tree
LAARS HEATING SYSTEMS Page 24 IGNITION FAULT TREE... - Page 25 Endurance Page 25 SPACE HEATING FAULT TREE...
- Page 26 LAARS HEATING SYSTEMS Page 26 DOMESTIC HOT WATER FAULT TREE (EBP ONLY)
- Page 27 Endurance Page 27 BOILER TEMPERATURE FAULT TREE...
- Page 28 Page 28 (2) poor flame sensor signal, (3) inadequate gas supply, (4) ignitor failure, (5) blocked or contaminated air source. Poor Combustion: Poor combustion should be suspected if there is a strong flue gas odor. The odor may result from either an improper gas/air ration (high or low CO ) or contamination of the combustion air supply.
- Page 29 Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after operation servicing. Figure 31. EDP/EDN Wiring Diagram. ATTENTION Au moment de l’entretien des commandes, étiquetez tous les fils avant de les débrancher. Les erreurs de câblage peuvent nuire au bon...
- Page 30 Page 30 Caution Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after operation servicing. Figure 32. EBP Wiring Diagram. LAARS HEATING SYSTEMS ATTENTION Au moment de l’entretien des commandes, étiquetez tous les fils avant de les débrancher.
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Page 31: Gas Valve Calibration
Endurance observe the offset pressure at startup and after 20 seconds. The pressure will be ~ -2 in. w.c. at startup (during prepurge) and should become less negative (-0.1 in. w.c.) when the gas valve opens and gas flow starts. If the pressure remains at ~ -2 in. -
Page 32: Short Cycling
Thermostatic union (EDP) or anti-condensing valve not opening (EBP). T-T wires cross connected (jumped) – improper installation - EBP or EDP/EDN Leakage of flue products into the combustion air stream – Direct Vent Installations only, see Section 8B-3, Resolving Lockouts (LO), item (5). -
Page 33: High Gas Consumption
Endurance flowing through the DHW heat exchanger and therefor the DHW will not be heated. To test the switch, place a temporary jumper across the back of the connector on the PCB (see wiring diagrams for connector location). If the internal pump operates and there is DHW generated then the water flow switch is faulty and must be replaced. -
Page 34: Section 11 Parts Identification
Description 1. PAN, COMBUSTION CHAMBER T0P 2. PAN, COMBUSTION CHAMBER BOTTOM 3. INSULATION, COIL COVER 4. INSULATION, BOILER COIL 5. COIL, BOILER, EBP/EDP/EDN 110 (ASSY.) 6. COIL, BOILER, EBP/EDP/EDN 175 (ASSY.) 7. GASKET, BURNER 8. BURNER, EBP/EDP/EDN 110 (GASKETS INCLUDED) 9. - Page 35 Endurance Page 35 Model EBP Boiler Drain...
- Page 36 As an Energy Star® Partner, Laars has determined that this product meets the Energy Star® guidelines for energy efficiency. P.O. Box 310 Lynnfield, MA 01940 Phone: 781-961-1660 Fax: 781-334-2541...
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