®
Heat
Link
www.heatlink.com
14
HEP025RT
Installation, Operation, and Maintenance Manual
L6HEP025RT
Flow Switch Installation
Notes:
• Make sure the cable to the flow switch isn't under tension.
• Clean the pipe system in which the flow switch is to be installed and remove any
magnetic particles, e.g. welding residue.
• The straight in- and outlet pipe (in front of and behind the flow switch) has to be
at least 2-
1
/
2
" (65 mm).
• The flow switch should be installed in an “upright standing position” in
horizontal pipework.
• The switch should only be installed in a vertical position, deviation max. 45°.
• Make sure that ther are no external magnetic fields or large ferromagnetic bodies in
the immediate vicinity of the flow switch, since these can impair device functioning.
• Screw on the union plastic nut with a maximum torque of 8 Nm.
• To prevent overheating when soldering near the flow switch, the flow switch (body
with paddle system) and the o-ring must be removed from the pipe section.
max. 45°
Step 1
DHW connectors are
1
/
2
” FNPT. Using appropriate thread
sealant and fittings, connect the water heater output to the
input on the flow switch; and house hot water system to
output on flow switch.
The straight in- and outlet pipe (in front of and behind the
flow switch) has to be at least 2-
1
/
2
" (65 mm).
Step 2
Observe flow direction when making connections.
Remove Terminal
Header of Wiring
Harness
www.heatlink.com
1-866-661-5332
Heat Source:
Panel(s):
Heat Load(s):
Schematic #:
Date:
Notes:
·
Drawings are for HeatLink suggested system layout only! User must determine
if system layout will work for their particular application.
·
Air vents, expansion tanks, pressure relief valves, etc. for heat source as per
local codes.
·
Use isolation ball valves for all circuits and components.
·
Local codes, regulations, and authorities have final jurisdiction.
Rough-in wiring see:
Wiring detail see:
DHW Supply
to House
Thermostat
Heat
Source
Heating Load
2017-08-21
FLWSWTCH
DHW Priority Switch
FS
Generic
Generic
Generic
–
Single Zone
HEP Series
Panel
Min. 2-
1
⁄
2
" (65 mm)
Min. 2-
1
⁄
2
" (65 mm)
Sold separately, the optional flow switch for DHW priority can be easily installed by following the instructions
below.
Filename
Not to be handed over to, copied or used by third party.
Confidential: Property of ZCP Inc., Calgary, AB, Canada.
JOB/PROJECT:
CONTRACTOR:
ENGIN./ARCH.
CLIENT/DISTRB ORDER No.:
CLIENT/DISTRB.:
TITLE:
Designed by
Checked by
Approved by:
1 of 1
Sheet
Edition
Scale
Date
RevNo
Revision note
Checked
Date
Signature
Heatlink can accept no responsibility for possible errors in printed matter and reserves the right to alter its products without notice.
Residential Control Panel
Electrical Layout
North America, Heatlink Distribution Network
BW
VC.A01.A1.02
05.07.16
Electrical Wiring Drawing
Dwg #: ZELIO PB7R2 Plug In
None
BW
D:\..panel prog\zcp dr\wiring
Pump
Secondary
BK
Pump
Primary
BK
BK
R
WH
R C W
T/STAT
CONTACTS
Y
Y
V
GRY
FLOW
SW
AUX
Transformer
Plug In
Primary
Ground
ZELIO HEP, TWH, WHP
Plug In
Plug In
BK
BK
N
L
I1 I2
I3
I8
I4 I5
I6 I7
SCHNEIDER
U/RUN
Q 1
Q 2
Q 3
Q 4
24VAC
Inputs I1....I8 24VAC
Step 3
Be sure to connect the DHW priority downstream from
the panel (see schematic at right).
Step 4
Disconnect power from the panel. Remove the
terminal header of the wiring harness from the
flow switch. Connect the flow switch wires to the
flow switch terminals.
