66
103448-02 - 6/13
Table 20 (continued):
r
ecommended Circulator Models for
a
lpine (
a
LP) Boilers and
a
lliance SL
indirect W
ater Heaters
Installed as Part of Near-Boiler Piping Up to 75 Ft. Equivalent Length - Domestic Hot W
ater Circulator
Boiler Model
Boiler Supply
Connection,
inch, FPT
Boiler return
Connection, i
nch, FPT
n
ear-
Boiler Piping Supply Pipe Size, i
nch
n
ear-
Boiler Piping return Pipe Size, i
nch
Max
a
llowable Flow thru Boiler
,
g
PM @
20°F
D
T
Flow
,
g
PM
@ 25°F
D
T
Min Req’d
Flow thru
Boiler
,
g
PM
@ 35°F
D
T
a
lliance
SL
Models to be installed a
s Part of
n
ear-Boiler Piping
a
lliance SL Coil
Required
Flow
r
ate,
g
PM
a
lliance SL
Coil
Head
Loss, Ft @
Required
Flow
r
ate
Combined
Boiler
,
a
lliance SL
& Piping Loop Head Loss, Ft
*r
ecommended
Circulator Make &
Model for alliance SL
installed as Part of
n
ear-Boiler Piping
r
eference Figure
n
otes
ALP210B
1
1
1-1/4
1-1/4
19.4
15.5
11.1
SL27
6
9
NA
Not Recommended
41B
Note 2
SL35
6
9
SL50
6
9.5
SL70
6
10
SL1
19
14
17
29.7
Taco 1400-45
Grundfos UPS 32-
80/2 (max speed)
41B
ALP285B
1-1/4
1-1/4
1-1/2
1-1/2
26.5
21.2
15.1
SL27
6
9
NA
Not Recommended
41B
Note 2
SL35
6
9
SL50
6
9.5
SL70
6
10
SL1
19
14
17.0
27.0
Taco 1400-45
Grundfos UPS 32-
80/2 (max speed)
41B
Note 3
ALP399
1-1/2
1-1/2
2
2
37.7
30.2
21.5
SL27
6
9
NA
Not Recommended
41B
Note 2
SL35
6
9
SL50
6
9.5
SL70
6
10
SL1
19
14
17.0
n
OTES:
Note 1: Required
Alliance SL
Coil Flow Rate exceeds Max
Allowable Flow Rate thru Boiler; this Boiler/Alliance SL
combination may result in boiler heat exchanger erosion and noise.
Note 2: Required
Alliance SL
Coil Flow Rate is below Min Required Flow Rate thru Boiler; this Model can only be installed as separate heating zone of
f system header - see Figure 40A
for alternate IWH
piping. Indirect W
ater Heater Circulator must be selected by an installer based on
Alliance SL
required coil flow and corresponding coil head loss shown as well as total equivalent length of such
separate zone.
Note 3: Combined Head Loss shown corresponds to Min Required Flow Rate thru Boiler
.
* Circulator Models shown are not equipped with internal flow check valve (IFC).
When selecting Circulators with IFC contact Circulator Manufacturer for sizing information.
Near-Boiler Piping Size shown is based on 2 to 5.5 Ft/sec velocity range to avoid potential noise and pipe erosion.
Vi
. W
ater Piping and T
rim
E. Multiple Boiler Installation (continued)
Содержание ALP080B
Страница 72: ...72 103448 02 6 13 VIII Electrical continued ...
Страница 73: ...103448 02 6 13 73 VIII Electrical continued Figure 43 Wiring Connections Diagram ...
Страница 75: ...103448 02 6 13 75 VIII Electrical continued Figure 44 Ladder Diagram ...
Страница 136: ...136 103448 02 6 13 U S Boiler Company Inc P O Box 3020 Lancaster PA 17604 1 888 432 8887 www usboiler net ...