Solar Thermal Information

53
COLD IN
(1" NPT)
K
A
F
I
Bottom
Sensor
Immersion
Well
Aquastat Location
(for backup heating)
E
G
H
C
B
TO SOLAR
(1" NPT)
J
FROM BOILER (1" NPT)
TO BOILER (1" NPT)
FROM SOLAR
(1" NPT)
T&P RELIEF
VALVE
Top Sensor
Immersion Well
D
Model A B C D E F G H I J K
NAS20053 22" 48
1
⁄4" 39
3
⁄4" 39
3
⁄4" 31
1
⁄2" 16
3
⁄4"6
1
⁄2" n/a n/a n/a n/a
NAS20083 24" 64" 57
1
⁄8" 57
1
⁄8" 31
1
⁄2" 19
1
⁄4"6
1
⁄2" 5" n/a n/a n/a
NAS20123 28" 65" 57
3
⁄4" 57
3
⁄4" 33
3
⁄4" 16
1
⁄4"8
3
⁄4"6
1
⁄2" n/a n/a n/a
NAS20082 24" 64" 57
1
⁄8" 57
1
⁄8" 49
1
⁄2" 46
7
⁄8" 36
1
⁄2" 31
1
⁄2" 19
1
⁄4"6
1
⁄2" 5"
NAS20122 28" 65" 57
3
⁄4" 57
3
⁄4" 51
3
⁄4" 49
1
⁄8" 38
3
⁄4" 33
3
⁄4" 16
1
⁄4"8
3
⁄4"6
1
⁄2"
NAS20124 28" 65" 57
3
⁄4" 57
3
⁄4" 51
3
⁄4" 49
1
⁄8" 38
3
⁄4" 33
3
⁄4" 16
1
⁄4"8
3
⁄4"6
1
⁄2"
D
C
F
E
B
COLD IN
(1" NPT)
A
TO SOLAR
(1" NPT)
G
Bottom Sensor
Immersion Well
Electric
Heating
Assembly
FROM SOLAR
(1" NPT)
Plug
H
Figure 2: NAS20082, NAS20122, NAS20124
Figure 1: NAS20053, NAS20083, NAS20123
ANODE
HOT OUT (1" NPT)
ANODE
ANODE
HOT OUT
(1" NPT)
ANODE
HOT OUT
W/ ANODE
(3/4" NPT)
COLD IN
(3/4" NPT)
ANODE
NAS20053 TOP
NAS20083, NAS20123 TOP
Dimensions
delta T
controller
air vent
w/ shut off
valve
solar collector array
solar pump
station
expansion
tank
fill / purge
valves
solar storage tank
with internal heat exchanger
and electric back up heating element
ASSE 1017
approved
mixing valve
P&TRV
electric
heating
element
potable
expansion
tank
sensor S2
sensor S1
programmable
control
timer
HW
CW
3
delta T
controller
air vent
w/ shut off
valve
solar collector array
solar pump
station
expansion
tank
fill / purge
valves
solar storage tank
boiler
circulator
(w/ check)
ON
P&TRV
sensor S1
sensor S2
with internal heat exchanger
and boiler backup heat exchanger
HW
CW
3
potable
expansion
tank
ASSE 1017
approved
mixing valve
Single tank system with electric backup Single tank system with boiler backup
Application diagrams