Refrigeration and Air Conditioning Mechanic (RAC)

Second Period Package (29 Modules) Comments

Date: 5/31/2019 11:16:57 PM
Module: 140201h
Version: 1.1000000000000001
Page: 52
Comment: The PE diagram is plotted incorrectly, h4 is not on the 155btu/lb line, which affects the self test answers. Also table 11 locations are incorrect, h2 should be entering compressor, h3 should be entering metering device, h5 should be exiting evaporator. The table on page 24 is also mislabeled.
Status: Approved

Date: 5/31/2019 11:16:57 PM
Module: 140203d
Version: 1.1000000000000001
Page: 42
Comment: Bottom paragraph states that "current mechanical codes dictate that furnace installers include a heat recovery ventilator...". ILM 140203C, page 31, states that HRV's are not required by code in many municipalities. From my reading in the ABC 2014 section 9.36 hrv's are not provincially mandated if sufficient insulation is installed, so 140203c is likely correct.
Status: Approved

Date: 5/31/2019 11:16:57 PM
Module: 140203d
Version: 1.1000000000000001
Page: 44
Comment: Figure 26 shows a common air exhaust interlock schematic, using a relay, which is contradictory to the CEC section 16, as stated in ILM 140203c, where figure 29 on page 33 shows a code compliant method of wiring the interlock.
Status: Approved