Bryant HEAT RECOVERY VENTILATOR HRVBB Troubleshooting Guide download pdf (Page 23)

TABLE 4A

Tier 1 (effective January 1, 2010) SRE and minimum

fan efﬁcacy requirements

Minimum Minimum Minimum fan efﬁcacy with 0°C

SRE at 0°C SRE at -25°C (32°F) supply temperature

(32°F) (-13°F)

SRE < 75% 1 cfm/W

60% 55%

(0.47 L/s/W)

SRE ≥ 75% any cfm/W

(L/s/W)

TABLE 4B

Tier 2 (effective July 1, 2012) SRE and minimum fan

efﬁcacy requirements

Minimum Minimum Minimum fan efﬁcacy with 0°C

SRE at 0°C SRE at -25°C (32°F) supply temperature

(32°F) (-13°F)

SRE < 75% 1.2 cfm/W

65% 60%

(0.57 L/s/W)

SRE ≥ 75% 0.8 cfm/W

(0.38 L/s/W)

For a list of ENERGY STAR qualiﬁed HRVs and ERVs, visit

oee.nrcan.gc.ca/equipment/heating/13082.

SRE = sensible heat-recovery efﬁciency

cfm = cubic feet per minute

L/s = litres per second

W = watt

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 35 36

No comments

Bryant HEAT RECOVERY VENTILATOR HRVBB Troubleshooting Guide Page 23