Specifications

CAREL gaSteam
13
To install the distributor pipes:
1. Cut a key shaped hole in the side of the duct to match the steam pipe and condensate return.
2. Apply silicone sealant to the mounting plate and insert the pipe through the hole and secure it with 4 sheet
metal screws.
3. Connect the steam and condensate hoses using the hose clamps supplied.
(Note: end support bracked supplied only with 36” and longer distributors.)
IMPORTANT: Allow 2 feet of straight duct downstream of the distributor pipes when the air temperature
will be >55
o
F. Allow 3 feet of straight duct if the air temperature will be <50
o
F. Always allow 2 feet
upstream. Turbulent air flow may require longer lengths.
3.6 Room Distribution Unit
A Room Distribution Unit (VRDXL), used to distribute the
steam directly into the room, is available as a remote unit (wall
mounting bracket supplied), connected to the gaSteam unit
using steam tubing.
The figure on the right shows the minimum recommended
distances to avoid the flow of humidified air from coming into
direct contact with persons, lights, electrical appliances, false
ceilings and cold surfaces before the steam has been totally
absorbed by the environment.
Distances: Above (48”), Either side (36”), Front (120”)
For the electrical connections, see the wiring schematic in this
manual.
UG045 unit needs (1) VRDXL unit.
UG090 unit needs (2) VRDXL units.
Note: For complete operation/installation instructions, see
the VRDXL manual.
3.7 Installation of the Condensate Return Hose
Condensate naturally forms inside the steam hose and the distributor and must be removed to avoid a gurgling
noise, restriction of steam flow and/or a reduction in efficiency. The condensate is drained by gravity using a
flexible hose that is suitable for the purpose. The use of unsuitable tubing may cause weakening and cracking
with consequent condensate or steam leaks. A drain trap must be made by looping part of the drain hose high
enough to overcome the duct static pressure. The end of the condensate hose can be connected to the nearest
open drain pipe, with a minimum slope of 5%. Fill the drain trap with water before starting the humidifier.