ACV HM25TC Evo Combined Gas Fired Condensing Boiler and Water Heater Instructions
- June 13, 2024
- ACV
Table of Contents
- ACV HM25TC Evo Combined Gas Fired Condensing Boiler and Water Heater
- Product Information
- Product Usage Instructions
- ABOUT PRODUCT
- Tank-in-tank technology
- Technical data and dimensions
- Domestic hot water performance
- ABOUT COMPANY
- References
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
ACV HM25TC Evo Combined Gas Fired Condensing Boiler and Water Heater

Product Information
- 
Product Name: Combined Gas Fired Condensing Boiler & Water Heater 
- 
Heat Exchanger Material: Stainless Steel 
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Features: - Provides heating and hot water from one unit, saving space and reducing energy use
- Operates in the most efficient mode (condensing) for both heating and hot water
- No anode protection required, resulting in low maintenance
- Corrosion-resistant stainless steel heat exchanger and tank for increased system lifespan
- Suited for high-demand and critical hot water premises like hotels and hospitals
- Easy-to-use standardized controls using ACV Max control system
- Can be combined with Evo S condensing boilers or Smart cylinder for increased heating and hot water output
- Suitable for vented or unvented systems (requires optional Systempak 3 unvented kit)
- Supplied with LPG kit for on-site conversion
- Supplied with factory-fitted T&P relief valve
- Improved access for service and maintenance
- 5-year warranty*
- Tank-in-tank technology for fast heat up, rapid recovery, reduced footprint, reduced scale, low storage required, and minimal heat loss
 
- 
Contact Information: - 
ACV UK Ltd St. David’s Drive, St. David’s Business Park, 
 Dalgety Bay, Fife, KY11 9PF
- 
Email: uk.sales@acv.com 
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Website: www.acv.com/gb/warranties 
 
- 
- 
Technical Data and Dimensions: - Unit: HM25TC Evo XB550001
- mg/kWh: 27.8
- dB: 5
- Dimensions: 1305mm x 1417mm x 1623mm x 1730mm
 
- 
Domestic Hot Water Performance: - L/10′: 361
- L/60′: 1018
- L/h: 788
- L/10′: 301
- L/60′: 865
- L/h: 676
- L/10′: 183
- L/60′: 577
- L/h: 473
 
- 
Clearances: - Top (minimum): 300mm
- Left side: 600mm
- Right side: 250mm
- Rear: 400mm
 
Product Usage Instructions
- Ensure proper clearances around the unit are maintained. The minimum clearances are as follows:- Top: 300mm
- Left side: 600mm
- Right side: 250mm
- Rear: 400mm
 
- If using a vented system, proceed to step 3. If using an unvented system, an optional Systempak 3 unvented kit is required. The kit includes a 25L expansion vessel, tundish, pressure control valve, combined pressure reducing valve, and mounting bracket.
- Install the combined gas fired condensing boiler & water heater in the desired location.
- If necessary, convert the unit to LPG using the supplied LPG kit.
- Connect the necessary plumbing and gas connections according to local codes and regulations.
- Use the ACV Max control system to operate the unit. Follow the standardized controls for heating and hot water settings.
- For increased heating and hot water output, the unit can be combined with Evo S condensing boilers or Smart cylinder from the same manufacturer.
- For service and maintenance, access the unit using the improved access design.
- Refer to the product warranty for any warranty-related queries or concerns.
 *Terms & conditions of the warranty are available at www.acv.com/gb/warranties.
ABOUT PRODUCT
- Heating and hot water from one unit saves space, reduces energy use and speeds up installation
- Operates in most efficient mode (condensing) for both heating and hot water
- Low maintenance with no anode protection required
- Reduces legionella risk due to water stored at > 60°C
- Corrosion-resistant stainless steel heat exchanger and tank reduces maintenance and increases system lifespan
- Suited to high demand and critical hot water premises such as hotels and hospitals
- Easy to use standardised controls using ACV
- Max control system
- Able to combine with Evo S condensing boilers or Smart cylinder for increased heating and hot water output all from one manufacturer
- Suitable for vented or unvented systems (optional Systempak 3 unvented kit required.
- Kit includes 25L expansion vessel, tundish, pressure control valve, combined pressure reducing valve and mounting bracket)
- Supplied with LPG kit for simple on-site conversion
- Supplied with factory fitted T&P relief valve Improved access for service and maintenance
- 5 year warranty
Tank-in-tank technology
- Fast heat up
- Rapid recovery
- Reduced footprint
- Reduced scale
- Low storage required
- Minimal heat loss
Technical data and dimensions
Technical data
 
 
DIMENSION
Domestic hot water performance

ABOUT COMPANY
- ACV UK Ltd
- St. David’s Drive, St. David’s Business Park, Dalgety Bay, Fife, KY11 9PF
- uk.sales@acv.com
- acv.com
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>
