ES-WR-HydroNex Direct
For Residential, Light Commercial, and Snow Melt Applications
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Job Location –––––––––––––––––––––––––––––––––––––––––– Approval – –––––––––––––––––––––––––––––––––––––––––––––
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HydroNex® Direct Panel
Sizes: 1-1/4" Trunk; 1" Zone Supply & Returns
irect panels are designed to supply high temperature zones,
D
such as dedicated water heaters, baseboards or fan coil units.
All supply and return lines are 1". Direct panels can supply 1
to 5 zones.
nder certain conditions, such as with the use of a condensing
U
boiler, Direct panels can be connected directly to the heat source,
provided the following conditions apply:
– Proper flow is maintained through the heat source.
– Heat source can be set to desired temperature setting (no
mixing required).
– No minimum return fluid temperature is required for the
heat source.
– All necessary conditions and piping practices, as outlined by
the heat source manufacturer, are properly maintained.
Installation Parameters
ake sure an electrical outlet is within 3 feet of where the Direct
M
panel will mount. If there are no outlets nearby, one will need to
be added.
Install and level Z-Bracket with 1/4" x 2-1/2" lag screw to studs.
Make sure the Z-Bracket is the correct size for the given Direct
panel. Incorrect Z-Brackets may interfere with cover placement.
Hang the Direct panel on the Z-Bracket. Lag screws should be
added to the bottom of the panel, further securing the panel to the
wall. Hang cover from top down.
In order to avoid property damage, injury, and/or death,
please refer to the complete installation manual and
warnings provided with the product.
Features
Wall mounted white powder coated back panel and cover
Easy access to all components
Pre-wired circulators and controls
Simple CAT-5 jump wiring to connect panels
O-Ring sealed, threaded union connection between panels
Integrated leveling system
Z-Bracket for simplified mounting
Specifications
Supply Voltage
Circulator Type
Electrical
Temperature, Pressure Ratings
120 Volts
Watts Radiant 15-58
Taco 007
Bell and Gossett NRF-22
Relay and CAT-5 Connections
210ºF @ 100 psi.
Note: Maximum total flow for panel is 22 gpm. Maximum flow for each
1" secondary is 8 gpm.
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials
without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
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MASTER
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EXPANSION
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1 AMP FUSE
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4 NC
6 NC
6 NC
5 NC
120V
RELAY
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Transformer
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Mix Power Sys
Var
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Demand
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Small
Buchanan
HydroNex Direct 3 zone panel. Direct series are available from1 to 5 zones.
HydroNex Direct 3 zone panel Schematic.
Circulator Options
1. Watts Radiant 1558
2. B&G NRF 22
3. Taco 007
DD
# of Zones
1, 2, 3, 4, or 5
1 Zone D-Direct
2 Zone D-Direct
3 Zone D-Direct
4 Zone D-Direct
5 Zone D-Direct
MODEL #
WT. (lbs)
DD - ____ - 1
DD - ____ - 2
DD - ____ - 3
DD - ____ - 4
DD - ____ - 5
55-60
90-95
120-125
155-160
185-190
SIZE
S
M
L
S = 28" wide x 31.5" tall x 12" deep
M= 40" wide x 31.5" tall x 12" deep
L = 52" wide x 31.5" tall x 12" deep
ES-WR-HydroNex Direct 1109
USA: 4500 East Progress Place, Springfield, MO 65803; www.wattsradiant.com
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca
© 2011 Watts Radiant
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DESCRIPTION
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GROUND SCREW
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TACO
SR501
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