
156 ESTIMATING LABOUR REQUIRED FOR ERECTION
Off-Peak Electric Warm Air Central Heating Units
Off load at site, air heater assembly, including cabinet, fan unit, plenum chamber,
outlet warm air and return air inlet duct connecting pieces, all control and wiring
equipment, and move to fixing position in a new unoccupied building.
Assemble heating unit, make all electrical connections to heater, fan, thermostat
and time controls and to the electricity supply (maximum 9 m).
Connect the warm air outlet and return air ductwork systems to the heater, clean
up and test.
A. Heater fixed in room on ground floor with unrestricted working space.
B.
Heate ...