Installation; C.1 Clearances; C.2 Fuels; C.3 Piping - Thermon Cata-Dyne Instructions D'installation Et D'utilisation

C.

INSTALLATION

C.1 Clearances
Appropriate clearances from the heating surface must be
observed during the installation of the Cata-Dyne™ heaters
(Figure 1 and Tables 7 – 10, page 5). Maintain nameplate
clearances from combustible materials such as wood, cloth,
paper, etc. if the heater is to be installed overhead maintain
clearances as stated in Figure 1 and Tables 7 – 10, page 5 from
vehicles parked below.
C
D
Figure 1 – Heater Clearance
Table 7 – A: Top (Heater Clearance)
Up to 12,000
Btu/hr
Radiant
Surface
(3.514 kW)
Position
in mm
Vertical (0°) 18 457
0–45° up 18 457
0–45° down 18 457
Table 8 – B: Bottom (Heater Clearance)
Up to 12,000
Btu/hr
Radiant
Surface
(3.514 kW)
Position
in mm
Vertical (0°) 7 178
0–45° up 0 0
0–45° down 22 559
Table 9 – D: Radiant Surface (Heater Clearance)
Up to 12,000
Btu/hr
Radiant
Surface
(3.514 kW)
Position
in mm
Vertical (0°)
0–45° up
28 711
0–45° down
A
C
B
Over 48,000
12,000 to 48,000
Btu/hr
Btu/hr
(14.058 kW)
(17.572 kW)
in mm in mm
18 457 42 1067
32 813 54 1372
18 457 18 457
Over 48,000
12,000 to 48,000
Btu/hr
Btu/hr
(14.058 kW)
(17.572 kW)
in mm in mm
12 305 18 457
12 305 18 457
24 610 42 1067
Over 48,000
12,000 to 48,000
Btu/hr
Btu/hr
(14.058 kW)
(17.572 kW)
in mm in mm
42 1067 60 1524
Table 10 – C: Side (Heater Clearance)
Radiant
Surface All Heaters Up to 60,000 Btu/hr (17.572 kW)
Position
Vertical
(0°)
0–45° up
12
0–45°
down
NOTE: Maintain nameplate clearances from combustible materials
such as wood, cloth, paper, as well as any vehicles parked in
the area of the heater.
C.2 Fuels
1. The Cata-Dyne™ flameless gas heater is designed to
operate on clean, dry natural gas, or propane as specified
on the heater nameplate.
2. Natural Gas - these heaters are designed to use natural
gas (1,000 Btu/ft3, 37 MJ/m3) at 7" w.c. (1.73 kPa), 4.5" w.c.
(1.12 kPa) or 3.5" w.c. (0.86 kPa).
3. Propane - these heaters are designed to use propane gas
(2,500 Btu/ft3, 92 MJ/m3) at 11" w.c. (2.72 kPa).
C.3 Piping
1. A main shut-off valve must be installed upstream of all
auxiliary heater controls.
2. The ASV375 100% safety shut-off valve (SSOV) and
appliance regulator (natural gas heaters only) can be
installed in the horizontal or vertical position. Older model
heaters with the H17 safety shut-off valve must be installed
in the upright position (horizontally) only.
3. The thermostatic temperature controller can be installed in
the horizontal or vertical position.
4. The maximum inlet pressure to the 100% safety shut-
off valve (SSOV), thermostatic temperature control and
appliance regulator is 1/2 psi (3.4 kPa). If the inlet pressure is
higher than this, a low pressure service regulator must be
installed upstream of these components.
5. The maximum inlet pressure to the low pressure service
regulator (available from Thermon is 250 psi (1.7 MPa). If the
inlet pressure is higher than this, a high-pressure regulator
must be installed upstream.
For inlet pressues less than 25 psi (0.17 MPA) an alternate
service regulator may have to be supplied. Contact
Thermon for recommendations on low pressure gas
installations.
6. If a low pressure service regulator is used, additional relief
may be required for complete overpressure protection of
downstream components. A Fisher 289U relief valve can
provide complete downstream protection of components
for typical installations.
7. For installation, see Figure 2, page 6 for typical
Cata-Dyne™ Heater and Figure 3, page 6 for natural
gas MKII model.
NOTE: Gas appliance regulators and manual shut-off valves are
required standard components for all CSA approved heaters;
they are available as optional accessories for FM approved
heaters
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