Honeywell AQ2002 User Manual

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

FEATURES

∙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

SPECIFICATIONS

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

Humidity rating	: 0 to 90% rh (non-condensing)
Storage/shipping	:	-30°C to +70°C
temperature
Electromagnetic	:	Emissions to EN55014-1
compatibility		Immunity to EN55014-2

Protection class : IP40 (with base fitted and when installed

		to EN60529)
Dimensions	: 144 x 96 x 107 mm (with standard base)
(w x h x d)		144 x 153 x 109 mm (with wiring centre)
Panel cut-out	:	138 x 92 mm
(w x h)
Weight	:	600 g

SYSTEM SELECTION CHART

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.

AQ2002

Radiator or

Radiator and

Radiator

Underfloor

Underfloor

Single

Single

Dual

Loop Systems

Loop Systems

Loop Systems

On/Off

Burner

On/Off

Burner

On/Off Burner

Control

Control

Control

With

With

Mixing Valve

Mixing Valve

Without

With

Without

With

Without

With

DHW

DHW

DHW

DHW

DHW

DHW

Pumped

Diverting

Pumped

Pumped

DHW

Valve

DHW

DHW

APPLICATIONS	1	2	3	4	5		6	7
SYSTEM 1
Application	Electrical Connections				Temperature sensors
This system offers intelligent ON/OFF
burner and pump control for radiator
						T3 Outside air	T7043E
heating.
						T5 Boiler	T7076D insertion or
						supply	T7043F immersion
						Optional
						T1 Remote	T8102B1001 Full
						unit	function remote unit
							including wall plate.

For potential free connection, please refer to boiler connection section

EN0R 8527 R0

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		AQ2002 Optimiser/Compensator Controller
SYSTEM 2
Application		Electrical Connections

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.

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.

SYSTEM 3

Application Electrical Connections

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

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.

3	EN0R 8527 R0

AQ2002 Optimiser/Compensator Controller

SYSTEM 4

Application Electrical Connections

This system offers intelligent ON/OFF burner and pump control with mixing valve control for radiator or underfloor heating.

This system can also be used for a single heating loop equipped with a mixing valve and a pump control without boiler control.

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.

SYSTEM 5

Application Electrical Connections

This system offers intelligent ON/OFF burner and pump control with mixing valve control for radiator or underfloor heating.

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

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

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