What heating system is no longer approved by the Building Regulations?
Frost stat
Two-pipe fully pump system
fully pump One-pipe system
Gravity system
What is a fully pumped system?
The hot water and heating circuits are both operated by the pump.
Only the hot water circuit is operated by the pump.
Only the heating circuit is operated by the pump.
Only the hot water is operated by gravity circulation.
What is an advantage of a one-pipe system?
It takes a long time to install.
Higher temperatures are achieved.
It is quicker and cheaper to install
It is a naturally-balanced system.
What does a semi-gravity system with a two-port valve provide?
Adjustable flow rate
Easily balanced system
Automatic air venting
Independent temperature control of hot water and heating
How is the balancing of a system achieved?
By adjusting the pump
By adjusting the boiler temperature
By adjusting lock-shield valves
By adjusting by-pass valves
What does a two position three-port valve give priority to?
Domestic hot water circuit
The heating circuit
The TRVs
Fully pumped system
What is the mid-position three-port valve not suitable for?
Dwellings with floor areas greater than 150m2
Dwellings with floor areas less than 150m2
Dwellings with floor areas greater than 200m2
Dwellings with floor areas less than 20m2
What is a programmable room thermostat?
A combined time switch and room thermostat
A frost and room thermostat combined
A boiler and room thermostat combined
All of the above
What is the maximum flow rate for a domestic heating pump?
2 l/s
3 l/s
4 l/s
1.5 l/s
What is the purpose of an air separator?
To remove dirt from the system
To remove turbulence from the system
To remove air from the system
To separate the oxygen from the hydrogen
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