Honeywell AQ2002 User Manual

FEATURES

AQ2002

Room unit (optional)

APPLICATION

Aquatrol 2002 is a straightforward, versatile controller which
forms the basis of an outside compensated control system
for single or dual zone low pressure hot water heating
systems. The controller offers build-in optimizer and many
other advanced featured whilst still retaining simple user
adjustments.

It provides self adaptive heating curve, optimum start/stop
operation, outside air compensated mixed water control
using a 3-port motorized valve and pump, boiler, and
domestic hot water control using a valve and/or pump.

A wide range of compatible sensors, a remote unit, valves
and actuators complement the control system.

AQ2002

OPTIMISER/COMPENSATOR

CONTROLLER

PRODUCT SPECIFICATION SHEET

• Digital control technology with easy to understand

analogue installation adjustments

• Outside compensated control of low pressure hot

water heating system

• Fixed or self-adaptive heating curve (with optional

remote unit)

• Two independent heating curves for 1st and 2nd

heating zone

• Heating time programme offering switching between

comfort and economy operation up to 6 times per
day, independently for each day of the week
(selectable night off period is also available)

• Optimum Start/Stop (with optional space sensor) or

Heating Boost on start-up (without space sensor)

• Domestic Hot Water (DHW) time programme offering

up to 6 switching points per day independently for
each day of the week

• DHW programme can alternatively be used as the

heating programme for second heating zone

• Holiday mode with programmable 1 to 99 day holiday

period and dynamic countdown display

• Automatic, DHW only, Holiday or Standby operation

• LED’s indicate control output status

• Pump and valve exercise which helps prevent

sticking during long periods of inactivity

• Frost protection of the pipework, hot water cylinder

and the building fabric (with optional space sensor)

• Automatic summer heating mode changeover (user

adjustable)

• Automatic heating shutdown under minimal load

conditions

• Softstart to help prevent pipe expansion noise

• Service switch to assist installer on start-up and

technician during service

• Intelligent pump control with energy efficient pump

overrun

• Built-in user programme

• Optional remote unit providing space temperature

sensing, space temperature adjustment,
comfort/economy override switch and 3 hour comfort
extension button with confirmation LED

1 EN0R8527R0

AQ2002 Optimiser/Compensator Controller

: IP40 (with base fitted and when installed

: 144 x 96 x 107 mm (with standard base)

SPECIFICATIONS

SYSTEM SELECTION CHART

Radiator or

With

On/Off Burner

Radiator

Single

Without

Pumped

Diverting

Radiator or

Radiator and

Single

Dual

On/Off Burner

On/Off Burner

With

With

Without

With

With

Pumped

Pumped

67134

5

2

Without

Without

APPLICATIONS

Supply voltage: 230 V~, +10% -15%, 50 Hz
Power

: 8 W

Consumption
Relay ratings : Pumps and boiler:

3 A, 230 V~ @ 0.6 pf - 400,000 oper.
Mixing valve:

0.25 A, 230 V~ @ 0.4 pf - 1,000,000
oper

Sensor accuracy : Water sensors: 20°C to 90°C ±2 K

Outside sensor: -20°C to +20°C ±2 K
Room sensor: 10°C to 25°C ±0.5 K

Ambient temp.

: 0 to 50°C

rating

The chart can be used to determine the
system number (1-7) corresponding to the
required application.

Systems 1, 2 and 3 are typical Radiator
applications without mixing valve.

Systems 4 and 5 are Radiator OR
Underfloor applications with mixing valve.

Systems 6 and 7 are Dual loop Radiator
AND Underfloor applications.

Loop Systems

Humidity rating: 0 to 90% rh (non-condensing)
Storage/shipping

: -30°C to +70°C

temperature
Electromagnetic

compatibility

: Emissions to EN55014-1

Immunity to EN55014-2

Protection class

to EN60529)

Dimensions
(w x h x d)

Panel cut-out

144 x 153 x 109 mm (with wiring centre)

: 138 x 92 mm

(w x h)
Weight : 600 g

AQ2002

Underfloor

Underfloor

Loop Systems

Loop Systems

Underfloor

SYSTEM 1

Application

This system offers intelligent ON/OFF
burner and pump control for radiator
heating.

Control

DHW

DHW

DHW

Valve

Electrical Connections

Mixing Valve

DHW

Control

DHW

DHW

DHW

DHW

Temperature sensors

T3 Outside air T7043E
T5 Boiler

supply

Optional
T1 Remote

unit

Control

Mixing Valve

DHW

DHW

T7076D insertion or
T7043F immersion

T8102B1001 Full
function remote unit
including wall plate.

EN0R 8527 R0 2

For potential free connection, please refer

to boiler connection section

AQ2002 Optimiser/Compensator Controller

SYSTEM 2

SYSTEM 3

Application

This system offers intelligent ON/OFF burner and pump
control for radiator heating.

This system also provides a second pump to meet the
demands for domestic hot water.

Electrical Connections

For boiler potential free connection, please refer

to boiler connection section

Temperature sensors

T3 Outside air T7043E
T4 Domestic hot water T7076D insertion or T7043F immersion
T5 Boiler supply T7076D insertion or T7043F immersion
Optional

T1 Remote unit T8102B1001 Full function remote unit including wall plate.

Application

This system offers intelligent ON/OFF burner and pumps
control for radiator heating and uses a diverted valve to meet
the demands of domestic hot water

Electrical Connections

For boiler potential free connection, please refer

to boiler connection section

Temperature sensors

T3 Outside air T7043E
T4 Domestic hot water T7076D insertion or T7043F immersion
T5 Boiler supply T7076D insertion or T7043F immersion
Optional

T1 Remote unit T8102B1001 Full function remote unit including wall plate.

EN0R 8527 R03

AQ2002 Optimiser/Compensator Controller

SYSTEM 4

with mixing valve control for radiator or underfloor heating.

with a mixing valve and a pump control without boiler control.

SYSTEM 5

with mixing valve control for radiator or underfloor heating.

Application

This system offers intelligent ON/OFF burner and pump control

This system can also be used for a single heating loop equipped

Electrical Connections

For boiler potential free connection, please refer

to boiler connection section

Temperature sensors

T2 Mixed water T7044C strap on or T7043F immersion
T3 Outside air T7043E
T5 Boiler supply T7076D insertion or T7043F immersion
Optional

T1 Remote unit T8102B1001 Full function remote unit including wall plate.

Application

This system offers intelligent ON/OFF burner and pump control

This system also provides a second pump to meet the demands
for domestic hot water.

Electrical Connections

For boiler potential free connection, please refer to

boiler connection section

Temperature sensors

T2 Mixed water T7044C strap on or T7043F immersion
T3 Outside air T7043E
T4 Domestic hot water T7076D insertion or T7043F immersion
T5 Boiler supply T7076D insertion or T7043F immersion
Optional

T1 Remote unit T8102B1001 Full function remote unit including wall plate.

EN0R 8527 R0 4