D.System Controls and Wiring

1.Refer to National Electric Code or Local Electric Codes for proper size and type of wire required. Follow Code.

2.Use anti-short bushings on all wiring passing through boiler jacket, junction boxes and/or control boxes.

3.Use armored cable (BX) over all exposed line voltage wiring.

4.If an Alliance™ indirect water heater is used, use priority zoning except for Hydro-Air Systems.

5.Single Zone Heating System – Refer to Figure 16 of this manual for the electrical diagram for this type of system. Set the thermostat heat anticipator to 0.60 amps.

6.Single Zone Heating System with Alliance™ Water Heater - Refer to Figure 17 of this manual for the electrical diagram for this type of system.

Set the thermostat heat anticipator to 0.60 amps.

7.Conventional Circulator Zoned System – Refer to Figure 18 of this manual for the electrical diagram for this type of system.

Read, understand and follow all of the instructions provided with the Honeywell R8888 control.

Connect the thermostat of each zone and the circulator for that zone to R8888 panel. If an Alliance™ indirect water heater is used, connect the Alliance™ thermostat and circulator to the Zone 1 terminals of the R8888.

Set the thermostat heat anticipator to 0.12 amps.

NOTICE

The Honeywell R8888 Control is available in a three (3) zone Model (R8888A) and a four (4) zone Model (R8888B). Up to four (4) R8888’s may be used together to provide control for up to twelve (12) individual zones. Only one (1) zone, the first zone of the main control, will provide priority circulation. If more than four (4) zones are required, connect additional R8888’s by wiring the A, B, and C terminals of each control together. Each R8888 requires a 120 volt power supply. If more than one (1) R8888 is used, set the panel type switch to “main” on the first R8888 and set the panel type switch to “expansion” on the second, third or fourth R8888.

8.Conventional Zone Valve Zoned System – Refer to Figure 19. Wiring to the most popular models of zone valves is given in Figure 20.

Connect the thermostat of each zone and the zone valve for that zone to the R8889 control. If an Alliance™ indirect water heater is used, connect the Alliance™ thermostat and zone valve to the “zone 1” terminals of the R8889.

Set the thermostat heat anticipator to 0.12 amps.

NOTICE

The Honeywell R8889 Control is available in two three (3) zone models and two four (4) zone models. Burnham recommends using Model R8889A for three (3) zone systems and Model R8889B for four (4) zone systems. Models R8889C and R8889D have less load capacity and may not operate with certain types of zone valves. Up to four (4) R8889’s may be used together to provide up to sixteen (16) individual zones. Only one (1) zone, the first zone of the main control will provide priority zoning for the Alliance indirect water heater. If more than four (4) zones are required, connect additional R8889’s by wiring the A, B and C terminals of each control together. Each R8889 requires a 120 volt power supply. If more than one (1) R8889 is used, set the panel type switch to “main” on the first R8889 and set the panel type switch to “expansion” on the second, third or fourth R8889.

31

Page 30 Page 32
Page 31
Image 31
Burnham PVG manual System Controls and Wiring
Page 30 Page 32

PVG specifications

Burnham PVG, an innovative leader in the heating industry, presents a range of high-efficiency gas boilers that are designed specifically for residential applications. Burnham has established a solid reputation for producing reliable and durable heating solutions, with the PVG series exemplifying their commitment to quality and performance.

One of the standout features of the Burnham PVG is its advanced stainless steel heat exchanger. This design not only ensures superior heat transfer but also enhances durability and resistance to corrosion compared to traditional cast iron counterparts. The use of stainless steel contributes to the longevity of the system, allowing homeowners to enjoy efficient heating for years with less risk of breakdown.

The PVG series incorporates cutting-edge modulating technology, which adjusts the boiler’s output to match the heating demand. This modulating feature allows for more precise temperature control, optimizing energy consumption and minimizing fuel costs. Unlike conventional boilers that operate at a fixed output, the ability to modulate enables the PVG to deliver precisely the right amount of energy when needed, thus enhancing overall system efficiency.

In addition to its efficiency and performance capabilities, the Burnham PVG is designed with ease of installation and maintenance in mind. The compact design enables versatile installation options, even in tight spaces or retrofit applications. Furthermore, the accessible panel layout simplifies service and maintenance tasks, allowing HVAC professionals to perform routine checks and repairs with ease.

The PVG series also emphasizes user-friendly operations, featuring intuitive controls that allow for straightforward adjustments and monitoring. With options for direct vent and conventional venting systems, homeowners can select the best installation method for their specific needs and living environment.

Additionally, the Burnham PVG aligns with environmental considerations by meeting stringent emissions standards, contributing to reduced greenhouse gas outputs. With its energy-efficient operation and commitment to sustainability, the PVG series represents a forward-thinking choice for those looking to reduce their carbon footprint while enhancing home comfort.

In summary, Burnham PVG is characterized by its durable stainless steel construction, modulating technology, compact design, user-friendly controls, and eco-conscious performance. This series exemplifies what modern residential heating solutions should aspire to achieve: efficiency, reliability, and sustainability, making it an excellent choice for intelligent energy management in the home.
Top Page Image Contents