Heatrae Sadia MegaFlo, Installation Manual

Page: 21 / 36

Megafl
o H
e
21
INDIRECT
THERMOSTAT
THERMOSTAT
ADJUSTMENT
INDIRECT THERMAL
CUT-OUT RESET
BUTTON
1
2
3
4
5
6
7
8
9
1
0
11
1
2
1
3
14
15
1
6
L N
N
L
N
L
B
l
B
r
G
O
G
Y
B
l
B
r
G
O
G
Y
1
2
3
L
N
H
TG
O
N
D
H
W
O
N
PU
M
P
B
O
IL
ER
ZO
N
E
VA
LV
E
(H
TG
)
M
EG
A
FL
O
(D
H
W
)
ZO
N
E
VA
LV
E
(S
U
PP
LI
ED
)
W
IR
IN
G
C
EN
TR
E
(S
U
PP
LI
ED
)
PR
O
G
R
A
M
M
ER
M
EG
A
FL
O
IN
D
IR
EC
T
TH
ER
M
A
L
C
O
N
TR
O
LS
(S
U
PP
LI
ED
F
IT
TE
D
)
1
3
2
R
O
O
M
S
TA
T
N
O
TE
S:
1.
A
D
O
U
B
LE
P
O
LE
IS
O
LA
TI
N
G
S
W
IT
C
H
M
U
ST
B
E
IN
ST
A
LL
ED
IN
T
H
E
M
A
IN
S
SU
PP
LY
.
2.
A
LL
E
A
R
TH
C
O
N
N
EC
TI
O
N
S
M
U
ST
B
E
LI
N
K
ED
B
A
C
K
T
O
T
H
E
M
A
IN
S
EA
R
TH
S
U
PP
LY
.
3.
U
SE
C
O
PP
ER
L
IN
K
S
SU
PP
LI
ED
T
O
M
A
K
E
C
O
N
N
EC
TI
O
N
S
B
ET
W
EE
N
T
ER
M
IN
A
LS
.
4.
D
O
N
O
T
M
O
U
N
T
W
IR
IN
G
C
EN
TR
E
O
N
C
Y
LI
N
D
ER
5.
T
H
E
A
B
O
V
E
D
IA
G
R
A
M
IS
F
O
R
G
U
ID
A
N
C
E
O
N
LY
, H
EA
TR
A
E
SA
D
IA
A
C
C
EP
T
N
O
L
IA
B
IL
IT
Y
F
O
R
A
N
Y
L
O
SS
O
R
D
A
M
A
G
E
A
RI
SI
N
G
F
R
O
M
A
N
Y
E
RR
O
RS
O
R
O
M
IS
SI
O
N
S
TH
AT
M
AY
B
E
IN
A
D
V
ER
TE
N
TL
Y
C
O
N
TA
IN
ED
W
IT
H
IN
T
H
IS
D
IA
G
R
A
M
. T
H
E
VA
RI
O
U
S
EQ
U
IP
M
EN
T
M
A
N
U
FA
C
TU
RE
RS
S
H
O
U
LD
B
E
C
O
N
SU
LT
ED
T
O
C
O
N
FI
RM
T
H
E
C
O
RR
EC
T
O
PE
R
AT
IO
N
O
F
TH
EI
R
PR
O
D
U
C
TS
W
IT
H
IN
T
H
E
SY
ST
EM
.
K
EY
B
l
B
LU
E
B
r
B
R
O
W
N
G
G
RE
Y
O
O
R
A
N
G
E
G
Y
G
RE
EN
/Y
EL
LO
W
D
H
W
D
O
M
ES
TI
C
H
O
T
W
AT
ER
H
TG
H
EA
TI
N
G
Figure 13 - 2 x 2 port valve system