20
A
16.75
″
(425.5)
B
12"
(381.0)
G
4
1
⁄
2
″
(114.3)
D
C
30
1
⁄
4
″
(768.3)
NOTES:
1. FRESH AIR FROM HRV TO HOUSE
2. FRESH AIR FROM OUTSIDE TO HRV
3. STALE AIR FROM HOUSE TO HRV
4. STALE AIR FROM HRV TO OUTSIDE
4
3
1
2
E
F
5
7
⁄
8
″ DIA
(149.2)
4 PLCS
2
3
⁄
16
″
(56.2)
4 PLCS
1″
(25.4)
2 PLCS
A05228
MODEL NO.
A B C D E F G
in. mm in. mm in. mm in. mm in. mm in. mm in. mm
HRVBBLH A1150 17---1/8 435.1 10---1/4 260.3 4 --- 1 / 4 107.9 10---3/8 263.6 8 --- 1 / 4 209.5 4 --- 1 / 8 104.9 9 --- 1 / 4 234.9
HRVBBLH A1250 17---1/8 435.1 10---1/4 260.3 4 --- 1 / 4 107.9 10---3/8 263.6 8 --- 1 / 4 209.5 4 --- 1 / 8 104.9 9 --- 1 / 4 234.9
Fig. 28 --- Dimensional Drawing HRVBBLHA