9
INSMUA0615
flow control
prelImInary stage
• make sure you use a graduated pressure gauge from 0.0.W.P to 0.5 W.P.
• Seal all the ducts with aluminum foil and close all the doors and windows of the house.
• Turn off the bathroom fans and the kitchen range hood or any other exhaust appliances.
We generally recommend that you set the minimum flow to 60 cfm for a standard house (2200 sq. ft. including the basement). Refer to the
AShRAe table below for the required airflow according to the size of the living space.
RequiRed aiRFlow
lIvINg SPACe AReA
NumbeR of beDRoomS
sq. ft
1
2-3
4-5
6-7
>7
<1500
30
45
60
75
90
1501 - 3000
45
60
75
90
105
3001 - 4500
60
75
90
105
120
4501 - 6000
75
90
105
120
135
6001 - 7500
90
105
120
135
150
>7500
105
120
135
150
165
adjustIng the controls
INDePeNDeNT INSTAllATIoN
1. make sure all the bypass duct flaps are completely open.
2. Place the manometer on a level surface and calibrate it to zero, if necessary.
3. Connect the pressure tubes according to the illustration shown below. make sure that the pressure tubes are properly connected to the cor-
responding hi/low connectors on the manometer. If the manometer needle falls below zero, reverse the connections.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
A
B
C
D
E
F
G
H
I
J
K
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
A
B
C
D
E
F
G
H
I
J
K
24V
N
C-771
GND
HAR-123
C-772
C-776
L2
L1
C-828
CL 2 40VA
dimmer
C-829
C-775
C-773
C-774
C-826
REL1
C-779
4x C-757
HAR-094
C-779
C-834
C-832
brown
black
bl
u
e
HAR-096
C-827
G
W1 W2
R
terminal block
1
2
3
a
b
M
M
R
C
A
Contact
SSR
M
PROT2
PROT3
H1
H2
X1
X2
TRF200040D
S
S
R
CONT1
PROT1
SSR1
CONT1
REL2
R
E
L2
Cap1
M1
E2
R
E
L1
E1
Temperature
sensor
8” moDel / 240 v
