Submittal Sheet

General Variable Speed “00” Circulator Features
• Available in all Styles of 003-0014
• All-in-One Pump / Control
• Sensor
s Included
• Easy to Wire
• UL Approved
• Snap-in PC Board
• Fuse Protected
• Plug-in Low Voltage Wiring Terminal
• Optional Integral Flow Check
Prevents Gravity Circulation
Specially Designed for Variable Speed Systems
Easy to Service
Patented
Additional 00-VR (Outdoor Reset) Features
• Adjustable Heating Curve (0.2 to 2.2)
• Selectable Maximum Supply Temperature (110°F,130°F,
150°F, or Off)
• Selectable Minimum Boiler Return Temperature (120°F,
135°F or Off)
• Minimum Supply Temperature (85°F or Off – Default
to Heating Curve)
• System and/or Boiler Pump Contact (Line Voltage,
5 amp max.)
• LED Status Panel
• Pump Exercise (10 Seconds After 3 Days of
No Operation)
• Post Purge (20 Seconds)
• Fail Safe Mode (Assumes Outdoor Temp of 32°F)
• 2 Second Start Delay Prevents Short Cycling
Additional 00-VS (Set Point) Features
• Adjustable Setpoint (30° - 210°F)
• Adjustable Temperature Difference (∆T) (5° - 50°F)
• Boiler Protection (135°F)
• Boiler Protection as a Limit Control (75° - 165°F)
• LED Status Panel
• Direct or Reverse Acting
• Selectable Output Response Speed
• Linear or Logar
ithmic Output
• Pump Exercise (10 Seconds After 3 Days of
No Operation)
Additional 00-VV (Variable Voltage) Features
• 4 Signal Voltage Ranges (0-10 V(dc), 0-20 mA, 2-10
V(dc), or 4-20 mA)
• Inter
nal LED’
s
• Manual Operation Switch
• Linear or Logar
ithmic Output
• Pump Exercise (10 Seconds After 3 Days of
No Operation)
Submittal Data Information
Variable Speed “00” Circulators
Submittal Data # 101-091
Supersedes:
New
Effective: 11/1/03
Taco Inc., 1160 Cranston Street, Cranston, RI 02920 / [phone] / Fax [phone]
T
aco (Canada) Ltd., 6180 Ordan Drive, Mississauga, Ontario L5T 2B3 / [phone] / Fax [phone]
www.taco-hvac.com
HY DRON IC CO MP ONEN TS & SYS TEMS
Variable Speed Outdoor Reset “00” Circulator (00-VR) Application
Outdoor reset controls the hot water supply temperature, so that the heat supplied to the
building equals the heat loss by the building. The 00-VR modulates the circulator to inject
hot water from the boiler loop into the radiant or reduced temperature loop while providing
Outdoor Reset to a heating system (see figure A). Available in any style 003 – 0014, the 00-VR
also comes with a boiler sensor to protect against low return temperatures. The 00-VR is
the ultimate for protection, control, ease of installation, and trouble free operation.
Variable Speed Setpoint “00” Circulator (00-VS) Application
The versatile Setpoint version of the Variable Speed “00” can be set up to deliver a fixed
temperature, maintain a specific temperature drop between sensor locations (∆T), used as a
bypass / shunt pump or integrated into a fan coil package to vary the speed of the pump based
on supply air temperature.
The 00-VS can be either direct acting (speed increases on a temperature decrease) or reverse
acting (speed increases on a temperature increase). A typical direct acting (limiting setpoint)
application would be for boiler protection, where the 00-VS is installed on a bypass loop (see
figure B). If the return temperature starts to drop below the set temperature (75°- 165°F) then
the speed of the pump will be increased, bypassing hot water to protect the boiler.
The 00-VS can be used in radiant injection mixing systems where you want to set a fixed supply
water temperature (see figure C). Through the use of the setpoint dial on the PC board any
temperature from 30°-210°F can be selected. If desired, a boiler protection sensor can be
installed to protect the boiler from flue gas condensation.
In the
∆T mode the pump speed is varied to maintain a set temperature drop (5°-50°F) across a
boiler or heat exchanger, ideal for snowmelt applications.
Variable Speed Variable Voltage “00” Circulator (00-VV) Application
The Variable Voltage version of the Variable Speed “00” Circulator is designed to operate the
pump at diff
er
ent speeds based on an externall
y generated analog voltage signal input. Its reli-
able operation,
ease of installation and integration to DDC or building management systems
allows for a wide variety of HVAC applications, such as maintaining a pressure differential or a
setpoint temperatur
e
.
The control accepts a 0-10 V(dc), 0-20 mA, 2-10 V(dc), or 4-20mA signal.
Supply
Sensor
Boiler
Sensor
Direct Injection System
Outdoor
Sensor
00-VR
Bypass Injection System
Boiler
Sensor
00-VS
See applications brochure for additional schematics.
Supply
Sensor
Boiler
Sensor
Direct Injection System
00-VS
See applications brochure for additional schematics.
Fig. B
Fig. C
Fig. A
101-091
Do it Once. Do it Right.
Taco, Inc., 1160 Cranston Street, Cranston, RI 02920 Telephone: [phone] Fax: [phone]
Taco (Canada), Ltd., 6180 Ordan Drive, Mississauga, Ontario L5T 2B3 Telephone: [phone] Fax: [phone]
Visit our website at: www.taco-hvac.com
Printed in USA
Copyright 2005
TACO, Inc.
Variable Speed “00” Circulators
Effective: November 1, 2003 Supersedes: NEW
Submittal Data Information
Job: Engineer:
Contractor:
Rep:
ITEM NO. MODEL NO.