ACV HM70TC Evo Combined Gas Fired Condensing Boiler and Water Heater Owner’s Manual
- June 13, 2024
- ACV
Table of Contents
ACV HM70TC Evo Combined Gas Fired Condensing Boiler and Water Heater
Product Information
The combined gas fired condensing boiler & water heater is a versatile unit that provides both heating and hot water from a single device. It features a stainless steel heat exchanger and tank, which are corrosion-resistant and reduce maintenance requirements. This product is designed for high-demand and critical hot water premises such as hotels and hospitals. The unit operates in the most efficient mode (condensing) for both heating and hot water, saving space, reducing energy use, and speeding up installation. It is equipped with easy-to-use standardized controls using the ACV Max control system. The unit can be combined with Evo S condensing boilers or Smart cylinders for highly efficient heating and hot water performance, all from one manufacturer. It is suitable for vented or unvented systems, and an optional Systempak 3 unvented kit is required for installation. The unit is supplied with an LPG kit for simple on-site conversion and a factory-fitted T&P relief valve. Improved access for service and maintenance is provided, and the unit comes with a 5-year warranty.
Product Usage Instructions
- Installation: Follow the installation instructions provided in the user manual. Ensure that the clearances specified are maintained during installation.
- Venting: Determine whether the system will be vented or unvented. For unvented systems, use the optional Systempak 3 unvented kit, which includes a 25L expansion vessel, tundish, pressure control valve, combined pressure reducing valve, and mounting bracket.
- Gas Conversion: If required, use the supplied LPG kit for on-site conversion of the unit to LPG gas.
- Controls: Familiarize yourself with the ACV Max control system for easy operation of the unit.
- Heating and Hot Water: The unit provides both heating and hot water. Adjust the settings as per your requirements using the standardized controls.
- Maintenance: The unit requires low maintenance and does not require anode protection. However, regular servicing and maintenance are recommended for optimal performance. Refer to the user manual for detailed maintenance instructions.
- Warranty: The unit comes with a 5-year warranty. Read the terms and conditions available at www.acv.com/gb/warranties for more information.
- Technical Data: Refer to the technical data section in the user manual for detailed specifications and dimensions of the unit.
Note: ACV UK Limited reserves the right to make changes and improvements to the product specification without prior notice.
Combined gas fired condensing boiler & water heater with stainless steel heat exchanger.
FEATURES
- 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
- R educes 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
- Combine with Evo S condensing boilers or Smart cylinder for highly efficient heating and hot water performance 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
| Type | Unit | HM70TC Evo |
|---|---|---|
| Part number | XB550004 | |
| Input max (heating) HCV | kW | 77.6 |
| Input min (heating) | kW | 21.5 |
| Output power min (80/60°C) G20 | kW | 20.9 |
| Output power max (80/60°C) | kW | 68.0 |
| Output at 100% (50/30°C) G20 | kW | 74.0 |
| Efficiency at 100% load (80/60) | % | 97.3 |
| Efficiency at 100% load (50/30°C) | % | 103.9 |
| Efficiency at 30% load (EN15502-1) – nett | % | 109.0 |
| Seasonal space heating efficiency | % | 96.6 |
| Capacity (total) | L | 315 |
| Capacity (DHW) | L | 190 |
| Connection – heating | Ø” | 1 ½ F |
| Connection – DHW | Ø” | 1 M |
| Connection – gas | Ø” | 3/4 M |
| Flue connection | Ømm | 100/150 |
| Water pressure drop boiler at Δt = 20°C | mbar | 9 |
| Gas flow rate (max output) | m³/h | 7.2 |
| Weight (empty) | kg | 298 |
| Max operating temperature | °C | 87 |
| Max service pressure heating (primary) | bar | 3 |
| Max service pressure (DHW) | bar | 8.6 |
| Voltage | V | 230 |
| Pre-heating time from 10 to 80°C (Heat source: boiler) | min | 27 |
| Standby loss ΔT 30K | kWh/day | 2.64 |
| Standby loss ΔT 45K | kWh/day | 3.94 |
| Standby loss ΔT 30K | W | 110 |
| Standby loss ΔT 45K | W | 164 |
| Declared load profile | XXL | |
| Water heating energy efficiency class | A | |
| Space heating energy efficiency class | A | |
| NOx class (EN15502) | 6 | |
| NOx weighted (GCV) (EN15502) | mg/kWh | 33.1 |
| Sound power level indoors LWA (BSEN15036-1) | dB | 60 |
Domestic hot water performance
| Type | Unit | HM70TC Evo |
|---|---|---|
| Peak flow at 40°C | L/10’ | 716 |
| Peak flow 1st hour at 40°C | L/60’ | 2455 |
| Continuous flow at 40°C | L/h | 2087 |
| Peak flow at 45°C | L/10’ | 592 |
| Peak flow 1st hour at 45°C | L/60’ | 2083 |
| Continuous flow at 45°C | L/h | 1789 |
| Peak flow at 60°C | L/10’ | 348 |
| Peak flow 1st hour at 60°C | L/60’ | 1391 |
| Continuous flow at 60°C | L/h | 1252 |
This data assumes an incoming mains water temperature of 10°C.
*In line with the recommendations specified in UK Building Regulations (2016) Part G, ACV UK Ltd advise the installation of a suitable domestic hot water thermostatic mixing valve on the hot flow immediately after the appliance.
All dimensions in mm.
| Clearances | (minimum) |
|---|---|
| Top | 300mm |
| Left side | 600mm |
| Right side | 250mm |
| Rear | 400mm |
Every effort has been taken to ensure the details are accurate. ACV UK Limited
does not, however, guarantee the accuracy or completeness of any information
nor does it accept liability for any errors or omissions in the
information. ACV UK Limited reserves the right to make changes and
improvements which may necessitate alteration to product specification without
prior notice.