The invention relates to a
direct heating type air source floor
radiation heat supply system construction method. A heat insulating layer is laid on a leveling layer,
aluminum foil is laid on the heatinsulating layer to serve as a reflection layer, an embedded capillary coil
pipe is laid and fixed, an embedded intake manifold and a liquid return header
pipe are laid and fixed, and a heating medium
branch device is connected; outer unit equipment installation is conducted, a header
pipe and outer unit equipment are connected,
system sweeping and
dirt discharging are conducted, then, first-timesystem pressure testing is conducted, and leakage is checked and eliminated in the pressure testing process till pressure testing is qualified; and indoor
cushion layer construction and second-time air pressure testing are conducted, and total-
system pressure testing debugging is conducted after second-
time pressure testing is qualified. According to the construction method, the system and outerunit equipment connection method is standardized, and equipment installation and maintenance are convenient. The waterproof measure is taken at the positions of indoor connectors and outdoor connectors, outdoor rainwater is prevented from seeping into the indoor system,
copper pipe water immersing and corroding are avoided, safe running of the system is facilitated, and the service life is prolonged. Template
trepanning is not needed for strong and weak
electricity tubing wiring construction, and template integrity is not damaged.