Project Name / Date
Division 23 52 33.13 - 4
that ensures the boiler will experience inlet temperatures in excess of 105ºF in less than 7-
minutes to avoid damaging condensation. The unit will automatically shut down if the inlet
temperature is not achieved within the 7-minute time frame.
2. The cold water start system shall be configured with a modulating three-way valve that is
controlled by a system-matched PID controller. The PID controller temperature sensor shall be
located in the inlet header of the boiler.
3. The control shall have a temperature setting dial located on the face of the board. The
temperature range of the dial shall be 105ºF to 120ºF. The PID Logic shall be capable of
limiting system overshoot to a maximum of 10ºF on initial start-up or call-for-heat.
4. The cold water start system shall be completely wired and mounted at the factory.
5. The control shall have the following diagnostic LED’s:
a. Call for heat
b. Start-up mode
c. Inlet temperature error
d. Sensor out of range
6. The controller shall have the capability to add optional alarm contacts.
P. Cold Water Run System
1. The boiler(s) shall be configured with a cold water run automatic proportional by-pass system
that ensures the boiler will experience inlet temperatures in excess of 105ºF in less than 7
minutes to avoid damaging condensation. The unit will automatically shut down if the inlet
temperature is not achieved within the 7-minute time frame.
2. The cold water run system shall be configured with a variable-speed pump that is controlled by
a system-matched PID control that injects the correct amount of cold water directly into the
boiler loop to maintain a minimum inlet temperature. The PID controller temperature sensor
shall be located in the inlet header of the boiler.
3. The control shall have a temperature setting dial located on the face of the board. The
temperature range of the dial shall be 105ºF to 120ºF. The PID Logic shall be capable of
limiting system overshoot to a maximum of 10ºF on initial start-up or call-for-heat.
4. The cold water start system shall be completely wired and mounted at the factory.
5. The control shall have the following diagnostic LED’s:
a. Call for heat
b. Start-up mode
c. Inlet temperature error
d. Sensor out of range
6. The controller shall have the capability to add optional alarm contacts.
2.3
SOURCE QUALITY CONTROL
A. The boiler(s) shall be completely assembled, wired, and fire-tested prior to shipment from the
factory.
B. The boiler(s) shall be furnished with the sales order, ASME Manufacturer’s Data Report,
inspection sheet, wiring diagram, rating plate and Installation and Operating Manual.
PART 3 - EXECUTION
3.1
INSTALLATION
A. Must comply with
1. Local, state, provincial, and national codes, laws, regulations and ordinances
2. National Fuel Gas Code, ASNI Z223.1/NFPA 54 – latest edition
3. National Electrical Code, ANSI/NFPA 70 – latest edition
4. Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1,
when required
5. Canada only: CAN/CSA B149 Installation Code and CSA C22.1 CEC Part I
6. Manufacturer’s installation instructions, including required service clearances and venting
guidelines
B. Manufacturer’s representative to verify proper and complete installation.
