Installation Guide

Back of
Control
M
ENU ITEM
X
– PUMP BLOCK
P
ATENT PENDING
X
PB-1
U
L
Power: 120 V + 10%
5
0/60 Hz, 750 VA
V
ar. Speed: 120 V
(
ac) 1 A
Pmp Relay: 120 V
(ac) 5 A, 1/6 hp
Use copper
c
onductors only
M
eets Class B:
C
anadian ICES
FCC Part 15
Com Sys
Ret
B
oil
Out Heat
Dem
Boiler
H
N
C
US
1
58033
Com Com
Sys
Y
RB
Man
R
System
S
upply
Sensor
Heat
Source
S
ensor
Outdoor
S
ensor
Heat Source
Variable Speed Circulator
Heating: Heat Source Circulator
Snowmelt: System Circulator
C
onstant Speed Circulator
Heating: System Circulator
S
nowmelt: Heat Source Circulator
Line Cord
To
Zone
Control
End Switch
or
Thermostat
(Relay or
Mechanical
Type)
Off-Enable On-Control
Boiler Operation
Sup
Var
P
ump
Fuse
Front of
Control
Manual
O
peration
Switch
X - Pump Block, Single Zone
Input from
Heat Source
Output to
System
HEAT
SOURCE
Supply
Sensor
Exp
Tank
Pressure
Relief
H
N
ComSup
Boil
Out Heat
Dem
Com Com
Sys
Ret
XPB
Back of Control
Off-Enable On-Control
Boiler Operation
Power
Cord
Thermostat
(Relay or Mechanical Type)
Pump
Outdoor
Sensor
Boiler
T
X - Pump Block (XPB)
FOR ADDITIONAL WIRING DIAGRAMS, PLEASE SEE www.taco-hvac.com/wiringwizard
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