Technical data

The Bosch 32Q has been designed for flow and return
applications. With the same 25% thicker commercial
grade heat exchanger as the Bosch 32, the Bosch 32Q
is a hardwearing appliance that will last longer in high
demand hot water applications. The Bosch 32Q internal
pump allows for programmed water recirculation in peak
usage times. This results in fast delivery of hot water to the
fixtures, with minimal water wastage.
Applications
Suitable for any high demand environment the Bosch 32Q
water heater is ideal for large domestic and commercial
applications with long runs to hot water outlets.
The Bosch 32Q can only be used as a single appliance in
flow and return applications. The Bosch 32Q cannot be
used in series or cascade applications.
At 55kW heating output, the Bosch 32Q water heater
offers the following performance:
3 Up to 16 litres per minute with 50ºC rise
3 Up to 32 litres per minute with 25ºC rise
The Bosch 32Q water heater can be used with NG or LPG.
When installing the 32Q, ensure the following is adhered
to- the maximum flow and return length should be no
greater than 60m in total with a maximum of 20 bends
3 The flow should be 3/4” with a return of 1/2”
3 Insulation on the pipework should meet R3 standard
or above
3 No branch lines or fittings off the return line
3 Tempering valves, where required should only be fitted
to branch lines
Extended flue lengths of up to 13m are also possible,
helping to provide even greater design flexibility.
The Bosch 32Q water heater is ideal for larger
applications where there are long hot water lines such as:
Large Domestic
3 use of multiple fixtures such as sinks and showers
3 Pre-heated water supply is to be used – e.g. by solar
thermal
Typical examples include larger homes.
Key benefits to the end user
High volumes of hot water
3 Multiple showers, sinks and baths at the same time
Cost savings
3 Low maintenance and replacement costs
3 Integrated timer function can restrict recirculation to
the times when it is required
Key benefits for installers
3 Compact, low-space design
3 NG and LPG versions
3 Horizontal or vertical flue options
3 Frost protection
Ease of installation and maintenance
3 Error code functionality with supplied controller
3 Easy access to components
3 Compact design
3 Internal and external installation
3 Is available in 37°C – 80°C
3 Commercial grade heat exchanger
The features
of the 32Q
commercial
water heater
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Technical & Specification Information – Bosch 32 Series Water Heaters