General - Lochinvar EcoSword LGC160-210 The Flue Manual

GENERAL

Lochinvar Water Heaters are certified for use on the following flue categories:
Installation type Category
B23 Open flue
C13 Closed Flue
C33 Closed Flue
C43 Closed Flue
C53 Closed Flue
C63 Closed Flue
All installations should comply with the requirements of:
1. For appliances up to 70kW net input- BS5440-1:2008- Flueing and ventilation for gas appliances of rated
input not exceeding 70 kW net (1st, 2nd and 3rd family gases). Specification for installation of gas appliances
to chimneys and for maintenance of chimneys.
a. Refer to drawing 1 and table 1 for details of terminal locations.
2. For appliances over 70kW net input- IGEM/UP/10 Edition 4 +A: 2016 - Installation of flued gas appliances in
industrial and commercial premises, specific attention should be paid to the following sections.
a. Refer to drawing 1 and table 1 for details of terminal locations.
b. Horizontal terminations shall be located according to the minimum distances given in table 1, and
subject to the risk assessment criteria shown in table 2.
c. Horizontal flue terminations (other than for fan dilution systems) must not be installed for any single
appliance or group of appliances with a total nett input exceeding 333kW net heat input.
d. For any single appliance or group of appliances with a total net heat input exceeding 333 kW, the
general requirements of IGEM/UP/10 Edition 4 +A: 2016 shall apply and approval must be sought
from the Local Authority prior to commencement of the installation.
3. The Clean Air Act for installations exceeding 333kW nett input.
An appliance intended to be connected to a flue that evacuates the products of combustion to the
outside of the room containing the appliance. The combustion air is drawn directly from the room.
An appliance connected to either a concentric or twin-pipe flue system with a Horizontal flue terminal.
Both the air inlet and flue exhaust must be in the same pressure zone.
An appliance connected to either a concentric or twin-pipe flue system with a Vertical flue terminal. Both
the air inlet and flue exhaust must be in the same pressure zone.
An appliance connected to a common air inlet and flue exhaust system, which is designed for more than
one appliance. This common system has a single air inlet and flue exhaust and is part of the building not
the appliance.
An appliance connected to a twin-pipe flue system with a Horizontal or Vertical flue terminal. Both air
inlet and flue exhaust may be in different pressure zones.
An appliance intended to be connected to a separately approved and marketed system for the supply of
combustion air and discharge of combustion products (i.e. other than that supplied by the water heater
manufacturer).
Description
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