Hallenbad

摘要

1307969 Swimming baths WITTE HAUSTECHNIK GmbH 3 Feb 1970 [9 June 1969] 37759/72 Divided out of 1305405 Addition to 1294456 Heading A4N [Also in Division F4] An indoor swimming bath installation as described in Specification 1294456 is modified in that a condenser 204" of the heat pump may be selectively placed in heat exchange relationship with a heating circuit 206 for water in the basin. The condenser 204" is included, as shown in the circuit 206 or alternatively in an intermediate water circuit Figs.5, 6 (not shown). A filter 212 and a droplet collector 212' are provided in a duct for air from the installation. An air heating heat exchanger supplied by a hot water storage tank, or a heat storage block 223 may be arranged downstream of the air heating condenser 204'. Used air may be exhausted and fresh air introduced between the evaporator and the condenser. The evaporator 202 may have divided headers served by separate compressors 203.