14
Enertech Global
HP IOM, Rev. B
Radiant Floor Zone Panel Wiring
(Enertech Part # HCS-DC-HO1-PM
-- part # includes buffer tank)
or Cold St ar t B oiler A pplicat ion
n any thermostat calls for heat, the appropriate circu-
nergized and the isolated end switch (X and X ) will
For Tank less Coil B oiler A pplicat ion ( A lt er nat ive W ir ing)
Operation:
W hen any thermostat calls for heat, the boiler will be enabled
and appropriate circulating pump is energized when the boiler tempera-
ture is above the set low limit and low limit (ZC ) dip switch is set to on.
ZC and ZR Term inals:
C onnect terminal ZC to ZC terminal on the aqua-
stat control. C onnect ZR to ZR terminal on the aquastat control. C onfirm
polarity is consistent between boiler aquastat and switching relay.
120 VAC IN PUT
TO: "TT" ON B OILER
OR
TO: "TT" ON B OILER WITH
DHW "TT" INPUT
SIX ZON E
EXPAN DABLE SW ITCHIN G RELAY
120 VAC CIRCULATORS
INP UT
120 VAC
ZONE 1
ZONE 2
ZONE 3
ZONE 4
ZONE 5
ZONE 6
ZONE1 ZONE2 ZONE3 ZONE4 ZONE5
SR 5 06-EXP-4
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
NET
EXPANSION
MAIN PRIORITY
X X X X A B C R W C R W C R W C R W C R W C R W C 1 2
EN D SWITCH
THERM OSTATS (24 VAC)
PRIORITY
N /C
PRIMARY
VAC
ZR
H
N
H
N
H N H N H
N H
N H
N H
N H
N H
MASTER
OFF
OFF
OFF
OFF
OFF
NORMAL
OFF
4 MIN/24 HOUR
ZONE6 ZONE6
PRIORITY
ACC ESSORY
PORT
ZON E 2
POWER
ZON E 1
ZON E 3
ZON E 4
ZON E 5
ZON E 6
LED
IN DICATORS
THERM OSTATS
See
NOTE
(page 2)
SIX ZON E
EXPAN DABLE SW ITCHIN G RELAY
POW ER
CONTROLS
120 VAC CIRCULATORS
ZC
INP UT
120 VAC
120 VAC IN PUT
TO: "ZC" ON BOILER
ZONE 1
ZONE 2
ZONE 3
ZONE 4
ZONE 5
ZONE 6
ZONE1 ZONE2 ZONE3 ZONE4 ZONE5
SR 5 06-EXP-4
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
NET
EXPANSION
MAIN PRIORITY
X X X X A B C R W C R W C R W C R W C R W C R W C 1 2
END SW ITCH
THERM OSTATS (24 VAC)
PRIORITY
N /C
PRIMARY
120 VAC
ZR
H
H
N
H
N
H N H N H
N H
N H
N H
N H
N H
S LAVE
PR IOR ITY ON
R ES ET
PR IMAR Y PUMP ON
POST PURGE ON
PR IOR ITY PR OTEC T ON
PUMP EXERCISE ON
30 S EC /2 WK
MASTER
OFF
OFF
OFF
OFF
OFF
NORMAL
LOW LIMIT (ZC ) ON
OFF
4 MIN/24 HOUR
TO: "ZR" ON BOILER
ZONE6 ZONE6
PRIORITY
ACCES SORY
PORT
ZON E 2
POWER
ZON E 1
ZON E 3
ZON E 4
ZON E 5
ZON E 6
LED
IN DICATORS
THERM OSTATS
(24 VAC)
r
Tank less Coil B oiler
A pplicat ion
( A lt er nat ive W ir ing)
Ins truction S heet
S R 506-E XP -4 S witching R elay
102-365
arch 1, 2013
EFFEC TIVE: December 20, 2013
75
W A R NING:
W hen using Alternative W iring diagram, wiring instruc-
tions must be followed so power originates from the boiler aquastat.
Failure to follow these wiring instructions may result in a secondary
source of power being connected to the boiler that may activate it
For information on Taco’s Switching Relays (SR)
including catalog sheet, instruction sheets, V isio
stencils and our highly praised Zone C ontrols
W iring G uide, scan the Q R code to the left or go
to our website: http://www.taco-hvac.com.
wiring diagrams, visit w w w .t a co-h v a c.com .
Taco Zone Panel
for Circulators:
10 A
RL
1
RL
15
14
1
10 A
RL
2
RL
17
16
2
HBX
GR
120
13
N
L
12
11
1
1
TM
3
2
8
TM TM
7
9 10
BL
1
BL
6
5
1
2A
1-10v
+
-
DO NOT
CONNECT
POWER
HERE
1
2
DS
1
2
2
DS DS
1
3
4
DO NOT
CONNECT
POWER
HERE
DS
10 A
RL
2
RL
19
18
2
ECO-0550
Central Processing Unit
Field high voltage
tank controller
Taco zone controller
HBX Tank Controller:
Radiant Floor Heating Only, Up to Six Zones
(Optional Separate Cooling System)
R
C
W
C
R
W
C
R
W
C
R
W
C
R
W
C
R
W
---- ZONE 2 ----
---- ZONE 3 ----
---- ZONE 4 ----
---- ZONE 5 ----
---- ZONE 6 ----
R
Y2
Y1
T
O
T
HEAT PUMPS(S) / BACKUP BOILER
---- ZONE 1 ----
Zone 1 t-stat
R
W
C
Zone 1 t-stat
R
W
C
Zone 1 t-stat
R
W
C
Zone 1 t-stat
R
W
C
Zone 1 t-stat
R
W
C
Zone 1 t-stat
R
W
C
NOTE 1
HP Water-to-Water
Heat Pump
Y
R
Optional Back-
Up Boiler
T
T
NOTE 2
NOTES:
1. Common (C) terminal optional.
2. Backup boiler connections may also be used for a
second heat pump
Hydro-Connect Low Voltage Wiring:
Radiant Floor Zone Panel WIring
(Enertech Part # HCS-DC-H01-PM
--part # includes buffer tank)
Section 5: Unit Piping Installation
