Caleffi solar NAS200 Series, Installation, Commissioning And Servicing Instructions

Page: 5 / 24

Page 5
COLD IN
(1" NPT)
K
A
F
I
Bottom
Sensor
Immersion
Well
Aquastat Location
(for backup heating)
ANODE
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
HOT OUT (1" NPT)
ANODE
Top Sensor
Immersion Well
D
SECTION I: SPECIFICATIONS
Foam insulation standard.
Pressures, all:
Test pressure = 300 PSI; Working pressure = 150 PSI
Electrical rating (where applicable): 4.5KW, 240V
WARNING: Installation should be in accordance with all national and/or local codes.
CAUTION:
The recommended water temperature setting for normal residential use is 120°F. Caleffi recommends a
thermostatic mixing valve or scald protection valve be installed and used according to the manufacturer's directions to
prevent scalding.
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
´´
ANODE
HOT OUT
(1" NPT)
D C
F
E
B
COLD IN
(1" NPT)
NAS20083,
NAS20123
ONLY
A
TO SOLAR
(1" NPT)
G
Bottom Sensor
Immersion Well
Electric
Heating
Assembly
FROM SOLAR
(1" NPT)
Top Sensor
Immersion Well
ANODE
H
HOT OUT
W/ ANODE
(3/4" NPT)
COLD IN
(3/4" NPT)
ANODE
NAS20053 TOP
NAS20083, NAS20123 TOP
Figure 2:
NAS20082, NAS20122
Figure 1:
NAS20053, NAS20083, NAS20123
Table 1:
Dimensions