Honeywell R7910B Instructions D'installation

R7910B Residential
Modulating Hydronic Control System
APPLICATION
The R7910B Modulating Control System provides heat
control, flame supervision, circulation pump control, and fan
control. It has direct spark ignition or optional hot surface
ignition. It will also provide status and error reporting.
FEATURES
• NTC resistors for measuring and guarding
temperatures.
• PWM-driven controlled dc-fan for optimal modulation
control.
• 24 Vac gas valve.
• PWM-driven for optimal energy consumption.
• DHW-pump.
• Various function-inputs.
• Connections for external comfort control.
• Connections for extra inputs/outputs.
• Easy modification of the parameters on three levels:
• End user.
• Installer/service mechanic.
• Manufacturer (OEM).
• For complete application and installation details see
form 68-0290EF.
SPECIFICATIONS
Electrical Ratings:
24VAC -16.6%/+25% (20 to 30 VAC)
Line frequency: 60 Hertz, +/- 5%. (57 to 63 Hz)
Corrosion:
R7910B should not be used in a corrosive environment. The
device meets NEMA 1 standards.
Operating Temperature: -4°F to 150°F (-20°C to 66°C)
S
OLA
Storage/Shipping Temperature: -40°F to 150°F
(-40°C to 66°C).
Humidity:
85% relative humidity, noncondensing. Condensing moisture
may cause safety shutdown.
Approvals:
Underwriters Laboratories, Inc. Listed: Pending
Canadian Standards Association Certified: Pending
CSD-1 Acceptable.
Federal Communications Commission, Part 15,
Class B.Emissions.
INSTALLATION
When Installing This Product...
1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous condi-
tion.
2. Refer to the wiring diagram provided as part of the appli-
ance or refer to Product Data sheet, form 68-0290EF.
3. Check the ratings given in the instructions and on the
product to make sure that the product is suitable for
your application.
4. Installer must be a trained, experienced combustion ser-
vice technician.
5. Disconnect the power supply before beginning installa-
tion to prevent electrical shock and equipment damage.
More than one disconnect may be involved.
6. All wiring must comply with applicable local electrical
codes, ordinances and regulations.
7. After installation is complete, check out product opera-
tion as provided in these instructions.
WARNING
Fire or Explosion Hazard.
Can cause severe injury, death, or property
damage.
To prevent possible hazardous burner operation, verify
safety requirements each time a control is installed on
a burner.
INSTALLATION INSTRUCTIONS
69-2084EF-03