Manual

2
○ HeatManager™ dynamic temperature reset for
additional energy savings
— DOE 2012 Compliant
— Meets NR CAN proposed 2012 requirements
○ Advanced microprocessor-based design
○ Backlit LCD digital display with installer
programming touch pad
○ Quick access to system cycle history
○ Onboard power disconnect switch (optional)
○ High/Low limit and High/Low differential
adjustments
○ 24Vac Thermostat compatible
○ Circulator control - 120Vac
○ Zone Control - 120Vac (programmable priority
override for domestic hot water)
○ Temperature sensor mounts in standard
immersion wells
○ Compatible retrot for most standard boiler
temperature controls
○ Programmable circulator-on and -off delays
○ Helps prevent freeze-up by energizing circulator
and ZC if an error condition is detected.
○ Periodically exercises circulator pump to help
prevent sieze-up.
○ Cold-start compatible
○ 6-pin vent damper receptacle on 7500B for easy
wiring to most vent dampers.
Features
Table of Contents
Technical Specications ............................................. 3
Electrical Ratings ..........................................................................3
Temperature Ranges and Differentials .......................................... 3
Environmental Ratings ..................................................................3
Approvals ......................................................................................3
Installation .................................................................... 4
Mounting .......................................................................................4
AquaSmart Models and Cross-Reference Guide .......................... 5
Removing the Control to be Replaced ..........................................7
Installing the Temperature Sensor ................................................7
Installing the 2-in-1 Sensor ...........................................................8
Test the Low Water Cut-off (LWCO) Safety Function ................ 10
Installing the AquaSmart Control ......................................................... 11
Wiring ......................................................................... 11
Wiring the AquaSmart Control .................................................... 12
Programming Basic Functions ................................ 26
A. Temperature High Limit .......................................................... 26
B. Temperature Low Limit........................................................... 26
C. Temperature High Limit Differential ....................................... 26
D. Temperature Low Limit Differential ........................................ 27
Programming Additional Options ............................ 27
A. Changing the Heat Manager Settings .................................... 27
B. Viewing the Boiler Cycle History ............................................ 27
C. Changing the Circulator Settings ........................................... 28
D. Changing Domestic Hot Water Priority (DHWP) Setting ....... 29
E. Selecting Fahrenheit or Celsius Temperature Display ........... 29
F. Changing Low Water Cut-Off (LWCO) Setting ....................... 29
AquaSmart Operation ............................................... 31
Control Checkout Procedure ...................................................... 31
How a Boiler Control Works ....................................................... 32
Display Boiler Status Mode ........................................................ 33
Troubleshooting ........................................................ 33
Lockout ....................................................................................... 33
HeatManager Technology ......................................... 33
Final Checklist ........................................................... 34
Accessories ............................................................... 34
Service ........................................................................ 34
Mounting Template .................................................... 35
Limited Warranty Information .................................. 36
Electrical Shock, Fire,
Explosion and Burn
Hazards
This control must be installed, adjusted and
put into operation only by a trained, licensed,
qualied professional or service agency in
accordance with the National Electric Code
ANSI/NFPA 70 (Canada CSA C22.1) state, local
codes and authorities having jurisdiction.
y The installer must carefully read and follow the
installation and service instructions contained in this
manual and make them available to the equipment
owner, so they can be kept for future reference.
y This product is not suitable for temperature control
of pools, spas, or Jacuzzis.
y This product is not to be used as a step or a shelf.