Page 154 - The City and Guilds Textbook: Plumbing Book 1 for the Level 3 Apprenticeship (9189), Level 2 Technical Certificate (8202) and Level 2 Diploma (6035)

The City & Guilds Textbook: Plumbing Book 1

Handover to the customer

When the system has been tested, commissioned and benchmarked, it can then
be handed over to the customer. The customer will require all documentation
regarding the installation:

● all manufacturers’ installation and servicing instructions for boilers,
electrical controls, taps, sanitary ware and any other equipment fitted to the
installation
● the benchmarking certificate
● the Building Regulations Compliance certificate.
The customer must be shown around the system and guided as to how to use
any controls, thermostats and time clocks. Isolation points on the system for
gas, water and electricity should be pointed out and a demonstration given of
the correct isolation procedure in the event of an emergency. Explain to the
customer how the systems work and ask if they have any questions. Finally,
point out the need for regular servicing of the appliances and leave emergency
contact numbers.

Decommissioning of systems
Decommissioning a system or an appliance simply means taking it out of
service. This falls into two categories:

1 Temporary decommissioning: this is where a system or an appliance
is taken out of service for a period of time for repairs, replacement or
maintenance. The customer must be kept informed of when the system is
being shut down, the expected length of time of the decommission and the
expected reinstatement time. If the period of time is considerable, ensure
that the customer has access to vital services, i.e. gas, water and electricity.
2 Permanent decommissioning: this is where a system or appliance is
permanently disconnected and/or removed. This will involve disconnection
and making safe of any services. Pipes should be cut back and capped and, if
necessary, tested for soundness. All electrical disconnections should be made
by a qualified operative or an electrician.

VALUES AND BEHAVIOURS

With temporary decommissioning, the key to good customer service is
information: keep the customer informed and aware of any disruptions to
services such as water and electricity.

KEY TERM Maintenance activities

Maintenance: preserving Maintenance falls into two categories:
the working condition of
appliances and services. 1 Planned preventative maintenance: on larger installations, it may be
necessary to have a planned maintenance schedule so that systems and
equipment can be serviced and checked at regular intervals to ensure
optimum performance. Maintenance activities should be recorded in

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