Install Instructions

IM-PR 566442 1114 (Design Manual)
130
Figure 5-15e Section through drainage
R-5 Insulation:
Refer to local code for insulation requirements.
(Ensure compression rating is suitable for
application.)
ViegaPEX Barrier Tubing
Gravel
Plastic Clip for Foam Board:
Fasten tubing every 2 feet and 3 times at
each U-turn to hold down any return or other
shapes created.
Drainage Pipe
Washed Stone
Filter Cloth
5.13 Startup
Once the snow melt system is installed, startup
involves the following steps:
1. Perform pressure test on ViegaPEX Barrier
tubing. Ensure that no leaks are present.
Repair if necessary and retest.
2. Disconnect any temporary manifold(s); then
mount new permanent manifold(s) and
connect tubing. Ensure that the supplies and
returns are connected to the corresponding
manifold ports. Label circuits if they are
serving different locations within the system.
3. Connect boiler supply and return piping to
manifolds as well as installing any additional
components (mixing devices, purge
assembly, isolation valves, circulators, etc.).
4. Prior to purging secondary piping, manifolds
and circuits, ensure that the boiler and
associated primary piping have been purged
of all air.
5. Purge manifolds and circuits according to
manufacturers’ instructions. Refer to PI
(product information) sheets for copper
manifolds.
6. Ensure that all electronic components
have been wired as per manufacturers’
instructions. Refer to PI sheets for controls,
etc.
7. Utilize controls to activate system circulator(s)
and relevant heating source(s). Ensure that
heating supply temperature increases and
that piping is not reversed.
8. Run boiler up to maximum supply
temperature to ensure proper function of
internal temperature controls.
9. Set mixing devices according to
manufacturers’ instructions. Refer to PI
sheets for mixing valves.
10. Check that the controls are working properly.
Refer to manufacturers’ control instructions
for more information (including but not limited
to snow melt controls, pumps, mixing valves,
etc.).
11. Ensure proper balancing of all circuits
according to completed design calculations.
Refer to PI sheets for instructions.