Install Instructions

181
IM-PR 566442 1114 (Design Manual)
Maximum Circuit Length
Tubing Diameter ≤25 Btu/ft² 26-35 Btu/ft
2
⅜" 300 250
½" 400 350
Example:
Net Heated Area = 1,500 ft
2
Calculating Number of Traks
8' Climate Traks 8" O.C.
# of Traks = 1,500 ft
2
x .18
# of Traks = 270
- Sold in packages of 20: (round up to order
14 boxes)
Calculating Amount of Tubing
Amount of Tubing = 1,500 ft
2
x 1.7
Amount of Tubing = 2,550 ft
Calculating Number of Circuits (≤25 Btu/ft
2
)
Amount of Tubing = 2,550 ft
2550 ft/400 ft = 6.375
# of ½" circuits = 7
Products
Net Heated
Area (ft²)
Multiplier
Estimated
Amount
Distribution
System Tubing
ViegaPEX
Barrier
⅜" or ½"
2.2
1.7
1.5
1.1
0.85
0.75
Fasteners
Screws 4.6
Staples 4.6
Groove Tube Silicone (Heat Transfer Plates Only) 0.02
Climate Traks
6" Spacing
4' Plate 0.47
8' Plate 0.23
8" Spacing
4' Plate 0.35
8' Plate 0.18
9" Spacing
4' Plate 0.31
8' Plate 0.16
12" Spacing
4' Plate 0.23
8' Plate 0.12
16" Spacing
4' Plate 0.18
8' Plate 0.09
18" Spacing
4' Plate 0.16
8' Plate 0.08
Heat Transfer
Plates
6" Spacing 0.92
8" Spacing 0.70
9" Spacing 0.62
12" Spacing 0.47
16" Spacing 0.35
18" Spacing 0.31
NOTES: Tubing is sold in coils and fasteners in packages. Where multipliers are located in the table, multiply the net
heated area by the corresponding multiplier to derive the estimated amount. Use the Maximum Circuit Length Table to
calculate the number of circuits required for the net heated area. Tubing multipliers include 10% overage for leaders.
C.2 Creating a material list
This chart is intended for conceptual purposes in developing an initial material list; there may be variations
in each job. You may use Radiant Wizard to create a final material list.
Table C-1. Maximum length of continuous tubing from a
supply-and-return manifold arrangement (See Clause 14.3.2.)
Note: Data for this table were compiled by the 8214
Technical Committee and are based on manufacturers’
recommendations and good engineering practice.
CSA B214, Clause 14.3.2
The maximum length of continuous tubing from a supply-
and-return manifold arrangement shall not exceed the lengths
specied by the manufacturer or, in the absence of manufacturer’s
specications, the lengths specied in Table 1. Actual loop
lengths shall be determined by spacing, number of loops, and
pressure drop requirements, as specied in the system design.
42
Nominal tube size, in Maximum loop length, m (ft)
⅜ 76 (250)
½ 91 (300)
42. ©CSA Group, B214-12. 2012. “Installation Code for Hydronic Heating Systems” Table 1, Clause 14.3.2
Maximum circuit lengths
(CSA B214 Table 1, see Clause 14.3.2)