Weil-McLain 633-600-002 Aqua-Plus 55 Pewter Indirect Water Heater
A 55-gallon Weil-McLain Aqua Plus Series 2 indirect-fired water heater designed to produce domestic hot water using a boiler as the heat source through an internal stainless-steel heat exchanger.
Key Features
- 55-gallon indirect-fired storage water heater (Aqua Plus Series 2)
- 316L stainless steel tank and coil construction for corrosion resistance
- High-output heat exchanger
- Advanced digital control / precise digital thermostat
- Fully passivated and welded design - no anode rod needed
- 2" thick CFC-free foam insulation to reduce standby heat loss
- Poly resin top and bottom caps and resilient vinyl jacket
- 150 PSI temperature & pressure relief valve included; drain tapping and valve included
- Leveling legs / adjustable feet for uneven floors
- Submittal sheet notes: AHRI Certified and factory pressure tested
Compatibility & Applications
- Intended for indirect domestic hot water production in hydronic/boiler systems using an internal coil heat exchanger.
- Must only be used where the manufacturer specifies this exact model/part number: 633-600-002 (Aqua Plus 55, Series 2).
Installation & Operation Notes
- Features to plan around include side connections, a digital control, included T&P relief valve, and an included drain valve/tapping.
- Replacement of older models may involve changed installation requirements, and many installers add a thermostatic mixing valve for safe, stable delivery temperature.
Maintenance & Troubleshooting
- This is a welded, passivated stainless design with no anode rod needed, shifting routine maintenance away from anode inspection typical of glass-lined tanks.
Certifications & Compliance- AHRI Certified is explicitly stated on the Series 2 submittal sheet.