Form: 2435
Revision: 8
Arctic Installation and Operation Manual
Date: 9-19-2016
Thermal Solutions, 1175 Manheim Pike, Lancaster, PA 17601
Web:
www.
thermalsolutions
.com
Phone:
717-239-7642
Fax:
877-501-5212
Email:
23
3.5.4.2
Water Flow Rates (Primary /
Secondary Systems)
Each boiler connected to a secondary loop of
a primary / secondary pumping system shall
have a constant volume pump sized in
accordance with Table 8 or Table 9.
Model
20 F
Δ
T Flow Rate
gpm
Δ
P
(ft)
High
Fire
Δ
T
Low
Fire
Δ
T
ARC1000
95
12.7
20F
4F
ARC1500
143
9.2
20F
4F
ARC2000
190
16.3
20F
4F
ARC2500
238
20
20F
4F
ARC3000
285
28.7
20F
4F
Table 8 Water Flow Rates for Primary /
Secondary Pumping 20F
Δ
T
Model
40 F
Δ
T Flow Rate
gpm
Δ
P
(ft)
High
Fire
Δ
T
Low
Fire
Δ
T
ARC1000
48 3.18 40F
8F
ARC1500
71 2.3
40F
8F
ARC2000
95 4.08 40F
8F
ARC2500
119
5
40F
8F
ARC3000
143 7.18 40F
8F
Table 9 Water Flow Rates for Primary /
Secondary Pumping 40F
Δ
T
3.5.4.3
Water Flow Rates (Constant
Volume Primary Pumping Systems)
A constant volume primary pumping system
shall be sized so that the flow rate specified in
Table 10 can be maintained through each
boiler connected to the system.
Model
Maximum Flow Rate
gpm
Δ
P
(ft)
High Fire
Δ
T
ARC1000
95
12.7
20F
ARC1500 143
9.2
20F
ARC2000 190
16.3
20F
ARC2500 238
20
20F
ARC3000 285
28.7
20F
Table 10: Water Flow Rates for Constant
Volume Primary Pumping
3.5.4.4
Water Flow Rates for Glycol
For glycol systems the gpm in Table 6, Table
7, Table 8, Table 9, and Table 10 will increase
as specified in Table 11.
Glycol
Concentration
GPM Percent Increase
50%
24%
30%
14%
Table 11 GPM Increase for Glycol Systems
3.6
Before Placing Boiler In Operation
3.6.1
Pre-Boil Out Flushing Of System
Much of the dirt and contamination in a new
hot water system can be flushed out before
the boil out of the system. First, flush the
system of waste with clear water. The boiler
and circulating pumps must be isolated
through the successive zones of the system to
waste, carrying metal shavings, dirt, pipe joint
compound, etc. with it. Follow with a
chemical flush.