KRUEGER VPQ-2 User manual

COMMISSIONING
GUIDE FOR VPQ-2
The purpose of this document is to serve as a guide for the Krueger VPQ-2 series diffusers. We have captured as much pertinent
information as possible to provide a thorough overview on how to setup, install, and operate the VPQ-2.
Information is subject to change at anytime, without notice.
TABLE OF CONTENTS
Components
Wiring Options
Software Installation
Diffuser Commissioning & Setup

Krueger | 1401 N Plano Rd | Richardson, TX 75081 | 972.680.9136 | [email protected] | www.krueger-hvac.com
Commissioning Guide for VPQ-2
Page: 2 of 10
Components
USB Module: Allows a
laptop to communicate with
the diffuser network for
programming.
NOTE: Each VPQ-2 diffuser will come with a 4-pin cable. The thermostat option will include the 6-pin RJ12 cable.
The USB module and MCM will include the 4-pin RJ9 cable. All cables are 25’ standard. 75’ cables are available as
parts.
6-pin RJ12 Cable: This cable
connects the thermostat to
the diffuser.
Thermostat: Digital
thermostat used to control
either a single diffuser or a
network of diffusers.
4-pin Cable: This cable
carries power and signal from
diffuser to diffuser and power
pack to diffuser.
Power Pack: Module which
will provide power to the
VPQ-2.
Master Communications
Module (MCM): Allows for
large diffuser networks and
integration with BACnet and
LONworks. This takes the
place of the USB module.
VPQ-2: Digitally controlled
VAV diffuser with plaque
face, which includes its own
communication module.
There is no physical
difference between a master
and slave diffuser.
4-pin RJ9 Cable: This cable
connects the USB module to
the diffuser network via the
power pack OR diffuser.
Termination Plug: Small,
4-pin plug which electrically
signals the end of a diffuser
chain. Shipped installed in
each diffuser and power
pack.
The purpose of this document is to serve as a
guide for Krueger’s VPQ-2 diffusers. It will cover all
components and setup parameters for the digital VAV
system.
For additional questions or assistance, please contact
us at [email protected].

Commissioning Guide for VPQ-2
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Krueger | 1401 N Plano Rd | Richardson, TX 75081 | 972.680.9136 | [email protected] | www.krueger-hvac.com
Wiring Options
Single Primary Diffuser
Daisy Chain Primary and Secondary
VPQ Diffuser VPQ Diffuser VPQ Diffuser
Laptop
Power Module
4-pin 4-pin
4-pin
RJ-12
RJ-9 USB Cable
Wall
Thermostat
4-pin
RJ-12
VPQ Diffuser Power Module
Wall
Thermostat
USB Module

Krueger | 1401 N Plano Rd | Richardson, TX 75081 | 972.680.9136 | [email protected] | www.krueger-hvac.com
Commissioning Guide for VPQ-2
Page: 4 of 10
Rules
1. Each power pack will power up (12) diffusers. It has (2) outlets; you may daisy-chain up to (6) diffusers per outlet.
The last diffuser in each run must have a termination plug installed. Every diffuser connected to a power pack is
part of the power pack’s local network.
2. A USB module or MCM is REQUIRED if any diffuser is to be congured as a slave. If all diffusers are masters,
they can be congured with the thermostat.
3. A “loop” is dened as a thermostat and any diffusers it is connecting; master or slave.
4. The master diffuser is the unit to which the thermostat is connected.
5. Without an MCM, any diffuser loop is limited to (12) diffusers. This means that you may have (1) thermostat which
controls (1) master diffuser and (11) slave diffusers, all connected to the same power pack. The MCM can connect
to up to (4) power packs, which will allow any diffuser network to be expanded to (48) units.
6. The MCM may be addressed via an IP address for easy diffuser network programming.
VPQ Diffuser
VPQ Diffuser VPQ Diffuser VPQ Diffuser
VPQ Diffuser VPQ Diffuser
Power Module
Power Module
Wall
Thermostat
Wall
Thermostat
Laptop
MCM
4-pin
4-pin
4-pin 4-pin
4-pin
4-pin
RJ-12
RJ-12
Wiring Options
Typical MCM Network
USB Module
RJ-9
RJ-9
RJ-9
USB Cable

Commissioning Guide for VPQ-2
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Krueger | 1401 N Plano Rd | Richardson, TX 75081 | 972.680.9136 | [email protected] | www.krueger-hvac.com
Software Installation
To begin the software installation process, navigate to our website at http://www.krueger-hvac.com/vpq/.
To nd to this page without the link, go to www.krueger-hvac.com.
Navigate to Resource Menu > Software & E-Tools > VPQ-2 Commissioning Software.
Click on the appropriate download type for your
operating system.
»Remember the location of the downloaded
le. Navigate there and double click to run
the *.exesetup le.
»Follow the on-screen instructions for the
MLMServer setup until your installation is
complete.
»Once your installation is complete and if you
are using the USB module for diffuser control,
plug the device into the laptop controlling the
diffusers.
You will receive the above
prompt about compatibility with
Windows XP.
Click “Continue Anyway”.
This completes your software
installation.
You will receive the above
prompt asking if you want to
search for software.
Select “No, not this time” and
click on the Next button.
You will receive the above
prompt asking you what you
want the wizard to do.
Select “Install the software
automatically” and click on the
Next button.
1 2 3

Krueger | 1401 N Plano Rd | Richardson, TX 75081 | 972.680.9136 | [email protected] | www.krueger-hvac.com
Commissioning Guide for VPQ-2
Page: 6 of 10
Single Loop Operation
»In the “Physical” tab, click a diffuser and navigate to
“Identication”, then “Loop Number”.
- Each loop is dened as a zone.
- Each zone is controlled by a single thermostat.
- The last diffuser in the daisy chain must have the terminal
resistor in place.
»The loop should start with the number one.
- In the “Loop Number” eld, enter the number one and
press the “Write” button.
- When loop changes are made to the diffuser, any
attached thermostat will follow suit.
- Click on other diffusers shown in the window and update
the loop number to the same value.
- After you have entered all of your loop designations,
press the “Sync” button.
- After sync is complete, you will see warning messages
indicating new nodes; close the window.
»Here is an example of the nished setup.
Initial Power Up
»Motors run full open to full close for calibration.
NOTE: During this time, no adjustments can be made
(2 - 5 minutes, depending on size of network).
»Thermostat shows version number and cycles to
setpoint temperature.
»USB plugs into power pack.
Diffuser Commissioning & Setup
Commissioning via Software
»Open software from the Start menu and navigate to
“Rickard Air” as shown below.
»Click “Connect” icon.
»In the “USB” tab, enter the serial number of USB
module; click on the “Connect” button.
»Click “Sync” icon.
- Initial sync will show errors and warnings; close the
window.
General Rules
»The below mentioned process will work with any
combination of zones or diffusers.
»Anytime a thermostat is plugged or unplugged into
a diffuser, you will need to reset the setpoints and
setpoint limits.
»Any change to the quantity of loops require a re-sync
after completion.

Commissioning Guide for VPQ-2
Page: 7 of 10
Krueger | 1401 N Plano Rd | Richardson, TX 75081 | 972.680.9136 | [email protected] | www.krueger-hvac.com
Here are a few examples of the nished setup.Multiple Loop Operation
»In the “Physical” tab, click a diffuser and navigate to
“Identication”, then “Loop Number”.
- Each loop is dened as a zone.
- Each zone is controlled by a single thermostat.
- The last diffuser in the daisy chain must have the terminal
resistor in place.
»The loops should start with the number one and
increment, two, three, four, etc.
- In the “Loop Number” eld, enter the number one and
press the “Write” button.
- When loop changes are made to the diffuser, any
attached thermostat will follow suit.
»Repeat the process for all connected diffusers and
designate loops as required.
- Remember, you cannot have more than one thermostat
per loop.
- After you have entered all of your loop designations,
press the “Sync” button.
- After sync is complete, you will see warning messages
indicating new nodes; close the window.
Diffuser Commissioning & Setup (Continued)
»Continue to thermostat settings.

Krueger | 1401 N Plano Rd | Richardson, TX 75081 | 972.680.9136 | [email protected] | www.krueger-hvac.com
Commissioning Guide for VPQ-2
Page: 8 of 10
Motor Settings
»Click on the diffuser you wish to adjust.
»Click the folder labeled “Type 10” on the left and
expand the “Process” folder.
»Click “Motor Min” and enter desired motor minimum
percentage, 0-100. See Figure 4 below.
- You may also set a motor maximum percentage.
Thermostat Settings
»Click the diffuser with temperatures above the device.
»You will see two folders on the left. Click the one
labeled “Type 7”.
»Check the loop number and ensure it matches the
value of the diffuser previously setup.
»Click the “Process” tab; you can adjust your setpoint
and setpoint limits. Remember to click “Write” after
any changes. See Figures 1 and 2 below.
- To maximize the range of operation enter, a high delta
between your max and min setpoint limits.
»Click the “Setup” folder and click “Edit Mode”, place
a check mark in the “Setup Menu Enable” only; click
“Write”. See Figure 3 below.
Diffuser Commissioning & Setup (Continued)
Figure 1 Figure 2 Figure 3 Figure 4

Commissioning Guide for VPQ-2
Page: 9 of 10
Krueger | 1401 N Plano Rd | Richardson, TX 75081 | 972.680.9136 | [email protected] | www.krueger-hvac.com
Notes

Terminal Units
Bypass & Retrot
Dual Duct
Single Duct
Fan Powered
Raised Floor
Raised Floor Diffusers
Raised Floor Terminal Units
Diffusers
Air Nozzles
Critical Room Solutions
Linear Slot
Louvered
Modular Core
Perforated
Plaque & Architectural
Plenum Slot
Round
Grilles & Registers
Duct Mounted
Industrial
Linear Bar
Return
Security
Stainless Steel
Supply
Transfer
Displacement Ventilation
Chilled Beams
Accessories & Dampers
Engineering Information
Learn More About Other
Krueger Air Distribution Solutions
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To learn more about what we can do for you, contact your local Krueger representative or visit us on the web at
www.krueger-hvac.com.
Provider of Air Distribution Solutions
Krueger Headquarters | 1401 N. Plano Rd. | Richardson, TX 75081 | Tel: [phone] | Fax: [phone]
www.krueger-hvac.com | [email protected]
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ISO 9001:2008 Certied
VPQ-2 COMMISSIONING GUIDE | 11/2011