The Raytherm 133-4001 boasts efficient and reliable performance, making it an ideal choice for heating needs. Ensure a hassle-free installation and seamless operation with our comprehensive "Installation & Operating Instructions Manual". Download this manual for free from manualshive.com to effortlessly set up and operate your Raytherm 133-4001.
19
C
O
N
T
R
O
LL
E
R
S
E
N
S
O
R
(L
E
S
S
T
H
A
N
4-
S
TA
G
E
)
C
O
N
T
R
O
LL
E
R
S
E
N
S
O
R
(4
-S
TA
G
E
O
R
M
O
D
U
LA
T
IO
N
)
5’
M
A
X
5’
M
A
X
Fig. 24: Single Boiler Primary/Secondary Piping—Models 133–4001
Note: Expansion tanks (supplied by others) should be installed per manufacturer's instructions.
