1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the Weil-McLain AB-155C AquaBalance Combination Wall Mount Gas Boiler. Please read this manual thoroughly before attempting any installation or operation procedures. Retain this manual for future reference.
The AquaBalance combi-boiler is designed to provide high-efficiency space heating and on-demand domestic hot water in a compact, wall-mounted unit. It features a 95% annual fuel utilization efficiency (AFUE) for reduced energy consumption.
2. Consignes de sécurité
AVERTISSEMENT: Une installation, un réglage, une modification, un entretien ou une maintenance inappropriés peuvent causer des dommages matériels, des blessures ou la mort. Lisez attentivement les instructions d'installation, d'utilisation et d'entretien avant d'installer ou d'entretenir cet équipement.
CONSIGNES DE SÉCURITÉ IMPORTANTES :
- Ensure all local codes and regulations are followed during installation.
- L'installation et l'entretien doivent être effectués par un installateur qualifié, une agence de service ou un fournisseur de gaz.
- Ne stockez pas et n’utilisez pas d’essence ou d’autres vapeurs et liquides inflammables à proximité de cet appareil ou de tout autre appareil.
- Si vous sentez une odeur de gaz, suivez immédiatement les instructions de votre fournisseur de gaz. N’actionnez aucun interrupteur électrique, n’allumez aucune allumette et n’utilisez aucun appareil produisant une flamme.
- Keep the area around the boiler clear and free from combustible materials.
- This appliance is for indoor installation only.
3. Produit terminéview
3.1 Principales caractéristiques
- Haute efficacité : 95% AFUE for energy savings.
- Type de carburant : Natural Gas (NG) operation, with optional LP conversion kit available.
- Conception compacte : Wall-mounted for space-saving installation.
- Fonctionnement silencieux : Heavy gauge insulated jacket.
- Modulation: 10-to-1 turn down ratio for precise energy matching.
- Faibles émissions : Low NOx rated, South Coast certified.
- Échangeur de chaleur: Single tube, large diameter, ASME certified 316L Stainless Steel.
- Contrôles : Honeywell boiler control with digital display.
- Vent Options: Unique 3-in-1 vent adapter (PVC, CPVC, SS, PP), multiple direct vent options.
- Composants intégrés : Internal condensate trap, 24VAC thermostat relay, internal 3-speed circulator, DHW flat plate heat exchanger.
3.2 Composants de la chaudière
The following image illustrates the exterior of the Weil-McLain AB-155C AquaBalance boiler.
Figure 1 : Devant view of the Weil-McLain AB-155C AquaBalance Combination Wall Mount Gas Boiler. The unit is white with two vent connections on top. A control panel with a digital display and an AquaBalance logo are visible on the lower front panel.
Note: For detailed internal component diagrams, refer to the full installation manual provided with the product.
4. Installation (Configuration)
Installation must be performed by a qualified professional in accordance with all national and local codes.
4.1 Vérifications avant l'installation
- Verify boiler model (AB-155C) and fuel type (Natural Gas).
- Assurez-vous de disposer de dégagements suffisants pour l'air de service et de combustion.
- Confirm proper venting system design (direct vent with 2 pipes or concentric, through sidewall or roof).
- Check electrical supply (120V, pre-wired with 3-prong plug).
- Confirm water supply and return connections are accessible.
4.2 Montage de la chaudière
- Select a suitable wall location capable of supporting the boiler's weight.
- Use the provided wall mounting bracket and hardware.
- Ensure the boiler is level and securely fastened.
4.3 Venting System Connection
Connect the venting system using the unique 3-in-1 vent adapter, compatible with PVC, CPVC, SS, or PP vent materials. Follow manufacturer guidelines for vent pipe sizing and termination.
4.4 Raccordements de plomberie et d'électricité
- Connect heating system supply and return lines.
- Connect domestic cold water inlet and hot water outlet.
- Connect gas supply line.
- Plug the commercial grade 120V power cord into a grounded outlet.
- Connect the 24VAC thermostat relay.
5. Fonctionnement
5.1 Démarrage initial
- Assurez-vous que tous les raccordements de gaz, d'eau et d'électricité sont bien fixés et étanches.
- Purge air from the heating system.
- Ouvrir le robinet d'alimentation en gaz.
- Mettez sous tension électrique la chaudière.
- Follow the instructions on the Honeywell boiler control digital display for initial setup and parameter configuration.
5.2 Fonctionnement normal
The boiler will operate automatically based on the thermostat demand for space heating and domestic hot water. The digital display provides operational status and diagnostic information.
5.3 Procédures d'arrêt
- Arrêt temporaire : Turn off the thermostat or set it to a low temperature.
- Arrêt prolongé : Turn off the electrical power to the boiler and close the main gas supply valve. If freezing temperatures are expected, drain the boiler and heating system to prevent damage.
6. Entretien
Regular maintenance is crucial for the longevity and efficient operation of your boiler. Maintenance should be performed by a qualified service technician.
6.1 Annual Maintenance (Recommended)
- Inspect and clean the heat exchanger.
- Check and clean the condensate trap.
- Inspect the venting system for blockages or leaks.
- Verify proper operation of all safety controls.
- Check gas pressure and combustion settings.
- Vérifiez l'étanchéité de tous les raccords d'eau et de gaz.
- Test the pressure relief valve.
6.2 Maintenance de l'utilisateur
- Veillez à ce que la zone autour de la chaudière soit dégagée de tout obstacle.
- Visually inspect the boiler and venting system periodically for any signs of damage or leaks.
- Ensure the condensate drain line is not blocked.
7. Dépannage
Cette section propose des solutions de dépannage de base pour les problèmes courants. Pour les problèmes complexes, veuillez contacter un technicien qualifié.
| Problème | Cause possible | Solution |
|---|---|---|
| No Heat / No Hot Water | Thermostat set too low; Power supply off; Gas supply off; Boiler lockout. | Check thermostat setting; Verify power to boiler; Ensure gas valve is open; Consult digital display for error codes and reset if possible. |
| Boiler Leaking Water | Loose connection; Pressure relief valve discharge; Internal component failure. | Tighten connections; Check system pressure (should be within operating range); Contact service technician for internal leaks. |
| Bruits inhabituels | Air in system; Pump issue; Combustion issue. | Bleed air from system; Contact service technician. |
Refer to the boiler's digital display for specific error codes and their meanings.
8. Spécifications
- Modèle: AB-155C
- Marque: Weil McLain
- Type de carburant : Gaz naturel (GN)
- Entrée BTU : 155,000 XNUMX BTU
- Sortie BTU: 125,000 XNUMX BTU
- DOE Rating: 144,000
- IBR Rating: 125,000
- Efficacité (AFUE) : 95%
- Type de système : Hydronic (Water)
- Type d'évent : Évent direct
- Voltage: 120 volts
- Type de montage : Mur
- Hauteur: 27.56 pouces
- Caractéristiques: Condensing, Combo Domestic Water, EI/Spark Ignition, Wall Mounted, Energy Star Rated.
- Code à barres : 384929219720
- Numéro de pièce : 383-100-050
9. Garantie et assistance
9.1 Informations sur la garantie
- Échangeur de chaleur: 10 Year Limited Warranty for Residential Use / 5 Years Limited for Commercial Use.
- Parties: Garantie limitée de 2 ans.
Please refer to the official Weil-McLain warranty document included with your product for complete terms and conditions.
9.2 Assistance clientèle
For technical assistance, service, or warranty claims, please contact your authorized Weil-McLain dealer or visit the official Weil-McLain website.
Weil-McLain Official Website: www.weil-mclain.com