1. Pwodwi souview
The EXCEL Tankless Gas Water Heater is designed to provide instant hot water for various applications, including small apartments, lofts, flats, RVs, and mobile homes. This unit operates on Propane (LPG) and features exclusive low water pressure startup technology, requiring only 2 PSI of water pressure to activate. Its vent-free design eliminates the need for complex and costly flue installations, making it a convenient and energy-efficient solution for on-demand hot water.

Figi 1.1: Devan ak bò view of the EXCEL Tankless Gas Water Heater, showcasing konsepsyon kontra enfòmèl ant li yo ak bouton kontwòl li yo.
Karakteristik kle:
- Propane Gas (LPG) Unit: Designed for use with liquid propane gas.
- Low Water Pressure Startup: Activates with as little as 2 PSI of water pressure, ideal for areas with fluctuating water supply. This is achieved through a magnetic water flow sensor, unlike older units that rely on rubber diaphragms requiring higher pressure.
- Vent-Free Technology: Does not require a traditional flue or ductwork for exhaust. Equipped with an Oxygen Depletion Safety (ODS) shutoff and an exclusive 20-minute safety shutoff feature for indoor installation with proper ventilation.
- Gwosè kontra enfòmèl ant: Dimensions are approximately 12.8 inches (front width) x 8 inches (depth) x 18.75 inches (height), allowing for flexible installation.
- Otomatik ignisyon: Powered by 2 D-size batteries (included) for automatic ignition upon water flow.
- Energy and Water Saving: Delivers hot water instantly, reducing waste.
2. Enfòmasyon sou Sekirite
Read and understand all safety warnings and instructions before installing, operating, or performing maintenance on this appliance. Failure to follow these instructions could result in property damage, personal injury, or death.
Prekosyon Sekirite Jeneral:
- This appliance must be installed by a qualified professional in accordance with all local codes and regulations.
- Ensure adequate ventilation when installing the unit indoors due to its vent-free design.
- Pa sere oswa itilize gazolin oswa lòt vapè ak likid ki ka pran dife nan vwazinaj sa a oswa nenpòt lòt aparèy.
- Check for gas leaks using a soapy water solution after installation and during maintenance. Never use an open flame.
- The unit is equipped with an Oxygen Depletion Safety (ODS) shutoff system and a 20-minute safety shutoff feature. Do not bypass or tamper ak aparèy sekirite sa yo.
- Ensure proper battery installation for automatic ignition. Use new, high-quality D-size alkaline batteries.
- Protect the unit from freezing temperatures. Drain the unit if it will be exposed to freezing conditions (see Maintenance section).
- Pwodui sa a gen pwodui chimik ke Eta Kalifòni rekonèt kòm lakòz kansè ak domaj nesans oswa lòt pwoblèm repwodiksyon (avètisman Pwopozisyon 65).
3. Enstalasyon ak Enstalasyon
Proper installation is critical for the safe and efficient operation of your EXCEL Tankless Gas Water Heater. Refer to the diagrams below for connection points.
Idantifikasyon konpozan:

Figure 3.1: Connection points at the bottom of the unit.

Figure 3.2: Location of the Winter Drain and Battery Box.
Etap enstalasyon:
- Montaj: Securely mount the unit to a wall using appropriate hardware. Ensure the mounting surface can support the weight of the unit when filled with water.
- Koneksyon dlo:
- Konekte liy ekipman pou dlo frèt la ak Inlet Dlo Fwad.
- Connect the hot water output line to the Debouche Dlo Cho.
- Ensure all water connections are tight and leak-free. Use appropriate sealing tape or compound.
- Koneksyon gaz:
- Connect the Propane (LPG) gas supply line to the Inlet gaz. The unit includes an LPG Brass Fitting for a ⅜" Flare connection.
- Verify all gas connections are secure and test for leaks using a soapy water solution.
- Enstalasyon batri: Open the battery box and insert two D-size batteries. Ensure correct polarity. These batteries power the automatic ignition system.
- Vantilasyon: For indoor installations, ensure the area has adequate ventilation as this is a vent-free appliance.

Figi 3.3: Entèn view highlighting the magnetic water flow sensor, which enables low water pressure startup.
4. Operasyon Enstriksyon
Follow these steps to operate your EXCEL Tankless Gas Water Heater.
Premye demaraj:
- Ensure all water and gas connections are properly made and leak-free.
- Louvri valv prensipal ekipman pou gaz la.
- Open a hot water faucet in your system. The unit will detect water flow (as low as 2 PSI) and automatically ignite.
- Allow water to run for a few moments to purge any air from the lines.
Operasyon chak jou:
- To get hot water, simply open any hot water faucet connected to the unit. The heater will automatically ignite and begin heating water as it flows through.
- The unit is designed for a temperature rise of approximately 45°F, delivering 1.6 Gallons Per Minute (GPM).
- While suitable for multiple points of use, it is recommended to use no more than one point of use at a time for optimal performance.
- For incoming cold water temperatures below 50°F (down to 40°F), you may need to reduce the water flow rate using the control knob to achieve desired hot water temperature.
- The unit features a 20-minute safety shutoff. If hot water is continuously drawn for more than 20 minutes, the unit will automatically shut off. To restart, close the hot water faucet and then reopen it.
5. Antretyen
Antretyen regilye asire lonjevite ak fonksyònman efikas aparèy chofaj dlo ou a.
Chèk woutin:
- Ranplasman batri: Replace the two D-size batteries annually, or if the ignition becomes inconsistent. Use high-quality alkaline batteries.
- Enspeksyon koule: Periodically check all water and gas connections for leaks. For gas leaks, use a soapy water solution.
- Netwayaj eksteryè: Netwaye eksteryè inite a ak yon mou, damp twal. Pa sèvi ak pwodui netwayaj abrazif oswa solvang.
Winterization (Freezing Protection):
If the unit will be exposed to freezing temperatures, it is crucial to drain all water from the system to prevent damage.
- Fèmen rezèv gaz nan inite a.
- Turn off the cold water supply to the unit.
- Open a hot water faucet in your system to relieve pressure.
- Jwenn la Winter Drain valve at the bottom of the unit (refer to Figure 3.2). Open this valve to drain the water from the heat exchanger.
- Once drained, close the drain valve.

Figi 5.1: Entèn view of the copper heat exchanger, which should be drained to prevent freezing damage.
NAN. Depanaj
This section provides solutions to common issues you might encounter with your water heater.
| Pwoblèm | Kòz posib | Solisyon |
|---|---|---|
| Pa gen dlo cho / Aparèy la pa pran dife | No water flow or insufficient water pressure | Ensure water supply is on and water pressure is at least 2 PSI. Check for kinks in water lines. |
| Batri ki mouri oswa ki ba | Replace both D-size batteries with new alkaline batteries. | |
| Pa gen ekipman pou gaz | Ensure gas tank is not empty and gas supply valve is fully open. | |
| ODS or 20-minute safety shutoff activated | Ensure adequate ventilation. If unit ran for 20 minutes, close and reopen hot water faucet to reset. | |
| Dlo pa cho ase | High water flow rate for incoming temperature | Reduce water flow rate using the control knob on the unit. |
| Tanperati dlo k ap rantre ki ba | The unit adds approximately 45°F to incoming water. If incoming water is very cold, the output temperature will be lower. Reduce flow rate. | |
| Gas or water leaks | Koneksyon ki lach oswa konpozan domaje | Tighten all connections. If leaks persist, contact a qualified professional for inspection and repair. Do not attempt to repair gas leaks yourself. |
Si pwoblèm nan pèsiste apre ou fin eseye solisyon sa yo, kontakte yon teknisyen sèvis kalifye.
7. Espesifikasyon
Technical specifications for the EXCEL Tankless Gas Water Heater.

Figi 7.1: Etikèt pwodwi a ak espesifikasyon detaye.
| Spesifikasyon | Valè |
|---|---|
| Mak | EXCEL |
| Nimewo Modèl | 850020757060 |
| Pwodwi Dimansyon (W x D x H) | 12.8" x 8" x 18.75" (apeprè) |
| Pwa atik | 8.6 liv |
| Kalite gaz | Pwopan (GPL) |
| Voltage | 3 Volts (for ignition) |
| Batri obligatwa | 2 D-size batteries |
| Pousantaj maksimòm koule | 1.6 galon pa minit (GPM) |
| Pwodiksyon Chalè | 40,000 Inite Tèmik Britanik (BTU) |
| Ogmantasyon Tanperati | Adds approximately 45°F to cold water |
| Minimum Water Pressure Startup | 2 psi |
| Maksimòm Presyon Fonksyònman | 120 psi |
| Karakteristik sekirite | Oxygen Depletion Safety (ODS) shutoff, 20-minute safety shutoff |
| Kalite aliye | Mi mòn |
| Konpozan ki enkli | 2 Size D Batteries, Exhaust diffuser Plate, LPG Brass Fitting for ⅜" Flare connection |
8. Garanti ak sipò
For warranty information and technical support, please refer to the documentation included with your purchase or contact the seller directly. The seller for this product is typically Energy-Store.
For additional resources and product information, you may visit the official EXCEL websit: www.excelonlinestore.com





