DC AQ157 Manuale rapido

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1 INSTALLATION PREPARATION

NOTES: Throughout these instructions, the following

terminology conventions are used:

— AQ150 refers to the AQ15000B Control Module;

— AQ155 refers to the AQ15540B Zoning Module.

— AQ157 refers to the AQ15740B Zoning Module.

— AQ250 is used when the information applies to both

the AQ25042B and AQ25044B Control Panels. Where

there are specific instructions or details relating to the "-

42B" or "-44B" Control Panels, the full model number

(i.e. AQ25044B) is used;

— AQ255 refers to all of the AQ25542B, AQ25582B and

AQ25742B Expansion Zoning Panels

— AQ257 refers to the AQ25744B Expansion Zoning

Panel. Where there are specific instructions or details

relating to the "-42B", "-82B", "-42B", or "-44B"

Expansion Zoning Panels, the full model number (i.e.

AQ25744B) is used;

— Control Module refers to the component within an

AQ2000 Series Control Panel that performs the master

control operations. See Table 1 on page 2 for specific

models.

— Control Panel refers to an assembled product,

consisting of a transformer, Control Module and Zoning

Module, all contained within an AQ2000 panel

enclosure;

— Expansion Zoning Panel refers to an assembled

product, consisting of a Zoning Module and, if

applicable, a transformer, contained within an AQ2000

panel enclosure. Zoning Modules are available in either

4-zone or 8-zone configurations. Refer to Honeywell

literature Form No. 69-1981 for more information on

these products.

— Zoning Module refers to the component within an

AQ2000 Series Control Panel or Zoning Expansion

Panel.

When Installing this Product...

1. Read these instructions carefully. Failure to follow

them could damage the product or cause a

hazardous condition.

2. Check the ratings given in the instructions and on

the product to make sure the product is suitable for

the application.

3. Installers must be trained, experienced, and licensed

service technicians.

4. Follow local codes for installation and application.

5. After installation is complete, check out the product

operation as printed in these instructions.

WARNING

Risk of electrical shock.

Can cause severe injury, property damage or death.

Disconnect power supply before installation and before

servicing.

AQ250 SERIES HYDRONIC CONTROL PANELS

Check That You Have All the Necessary

Equipment For a Successful Installation

• AQ2000 Series components:

— AQ250 Control Panel

— AQ Expansion Zoning Panels (if more than four space

heating zones in the system)

— Digital thermostats (one for every space heating zone

being controlled)

• Boiler supply and return temperature sensors (included with

the AQ250 Control Panel)

• Low voltage thermostat wire

• Zoning equipment (zone valves or pumps)

Read All Instructions Carefully Before

Proceeding

The AQ250 Control Panels are a part of a totally new series of

hydronic controls. And although they - and other AQ2000

system components - are very easy to install and operate, they

are different than other hydronic controls that you have

previously installed. So take a moment to read through this

quick installation guide before beginning the installation.

Failure to follow them could damage the product or cause a

hazardous condition.

Familiarize Yourself With the AQ250 Control

Panel Layout

Refer to Fig. 1 on page 4. All AQ250 Control Panels consist of

three functional components:

1. AQ10X38 transformer (power supply module), which

connects to 120 Vac power and supplies 24 Vac power to

the Control Module and Zoning Modules

2. AQ15000B boiler / DHW Control Module, which controls

the boiler and domestic hot water (DHW) functions as

well as coordinating the overall operation of the hydronic

system.

One of two different 4-zone Zoning Modules:

• AQ15740B (part of the AQ25044B Control Panel)

for zoning with 24 Vac zone valves with end

switches.

• AQ15540B (part of the AQ25042B Control Panel)

for zoning with either line voltage circulators or 24

Vac zone valves without end switches.

AQ250 Control Panels can control a maximum of 16 zones by

connecting additional Expansion Zoning Panels to the AQ250

Control Panel. Each Expansion Zoning Panel is configured

with its own bank of DIP switches, located in the left-most

section of each Zoning Module. To expand the capacity of an

AQ250 Control Panel beyond 16 zones, an AQ254 Add-A-

Temperature Expansion Control Panel is required. The

hydronic system can be expanded by 16 zones for each

AQ254 connected to the AQ2000 network. A maximum of

three (3) AQ254 Panels may be connected to an existing

AQ2000 Control Panel for a maximum of 64 zones connected

on the AQUATROL® network

NOTE: If an AQ254 Add-A-Temperature Expansion Control

Panel is used for controlling the temperature in a

mixed loop, it can reset the mixed loop temperature

using LOAD reset, but not OUTDOOR reset, as the

AQ250 panel does not have input terminals for an

outdoor sensor.

68-0306—05