Test And Check Out The Installation - Honeywell AQ25A Series Technical Reference Booklet

AQ255 AND AQ257 SERIES EXPANSION ZONING PANELS
5 TEST AND CHECK OUT THE
INSTALLATION
If this AQ255 / AQ257 Expansion Zoning Panel is part of a
completely new AQ2000 installation, refer to the Test and
Check Out Procedure (for a complete AQ2000 system) in the
Product Data document for the main AQ2000 Series Control
Panel. The form numbers (and models) are: 69-1974 (AQ251),
69-1986 (AQ252), or 69-2119 (AQ25A).
If this Expansion Zoning Panel is being added (as a retrofit
project) to an AQ2000 system already in operation, then only
the zones of this Panel need to be tested and checked out.
Startup
Apply power to the AQ2000 Series Control Panel only after all
of the AQ2000 components (Control Panel, thermostats,
sensors, Zoning Modules/Panels) have been wired to the other
components in the hydronic heating system (boiler, zone
valves or pumps, DHW Aquastat®, etc.).
Once powered, the AQ2000 Series Control Panel begins its
start-up routine, establishing communication with all other
AQ2000 components on the AQUATROL network.
CAUTION
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment circuitry.
When line voltage is applied to an AQ255 / AQ257
Expansion Zoning Panel and the front cover of the
Panel is removed, there is a risk of electrocution. Be
careful to avoid contact with the line voltage (N and L)
terminals, either with your fingers or with metal tools
(such as a screwdriver) when power is applied to the
Control Panel.
Test and Checkout Routines
For Expansion Zoning Panels connected to AQ250 Control
Panels, continue with the "Test Expansion Zoning Panels used
with AQ250 Control Panels" section.
For Expansion Zoning Panels connected to AQ25A, AQ251, or
AQ252 Control Panels, go to "Test Expansion Zoning Panels
used with AQ25A, AQ251, and AQ252 Control Panels" on
page 8.
Test Expansion Zoning Panels used with
AQ250 Control Panels
Auto Test - AQ155 / AQ157 Zoning Modules
Auto Test operation for Zoning Modules enables the installer to
test all zones wired to the Zoning Module by sequentially
activating the zoning equipment connected to each zone
output. Each step of the Auto Test routine may be paused or
skipped by pressing the Test button.
STATUS LEDS
Every status LED light (Zone 1, Zone 2, Zone 3, Zone 4) will be
turned on for 15 seconds when its corresponding output is
activated during Auto Test.
69-1981—03
DIAGNOSTIC LED
This light is used by the AQ155 / AQ157 to communicate
diagnostic data to the user:
• Constantly ON indicates that the unit is working properly.
• Constant, fast blinking indicates that the unit is in the Auto
Test mode. Constant, slow blinking indicates that Auto Test
mode has been paused.
• Coded blinking is used to communicate an error code to the
user. Refer to the Troubleshooting section of these
instructions for an explanation of these codes.
NOTE: NOTE: The DIAGNOSTIC LED is OFF when the
AQ155 / AQ157 Zoning Module is not powered.
Auto Test Sequence of Operation
1. When the Auto Test button is pressed, Zone 1 of the
Zoning Module energizes and the DIAGNOSTIC LED on
the AQ155 / AQ157 begins to blink quickly. Zone 1
remains energized for 15 seconds, then shuts off
2. Following that, each of the remaining zones energizes
sequentially (starting with Zone 2) for 15 seconds, and
then shuts off.
3. After Zone 4 de-energizes, the AQ155 / AQ157 exits the
Auto Test routine and the DIAGNOSTIC LED on the
Module returns to steady illumination (no blinking).
NOTE: This Auto Test routine works for Zoning Modules
when connected to any AQ2000 Series Control
Panel.
If no errors were detected in the Auto Test routine, the AQ255 /
AQ257 is now ready for operation. If errors were detected,
refer to "Troubleshooting" on page 11 for details.
Test Expansion Zoning Panels used with
AQ25A, AQ251, and AQ252 Control Panels
If this AQ255 / AQ257 Expansion Zoning Panel is connected to
an AQ25A, AQ251 or AQ252 Control Panel, the Test and
Check Out procedure can be done either manually (by
following the preceding method outlined in the "Auto Test -
AQ155 / AQ157 Zoning Modules" on page 8 of this document),
or through the Control Panel's Test and Purge tools. The TEST
feature enables the installer to checkout the system's zone
equipment as part of system commissioning (Checkout).
NOTE: If checking out the operation of more than the newly-
added Expansion Zoning Module, refer to the Product
Data document for the main AQ2000 Series Control
Panel: AQ25A (form 69-2119), AQ251 (form 69-1974)
or AQ252 (form 69-1986).
Test Zones
When TEST ZONES is selected, the Installer can test zones
connected to the AQ25A, AQ251 or AQ252 (space heating and
DHW) simultaneously or individually.
If zones are tested simultaneously (TEST: ALL ZONES), zone
pumps energize immediately (with a delay of 1/10th of a
second delay between each pump to minimize the effect of
inrush currents from the pumps' motors) along with the main
boiler pump.
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