P-K MODU-FIRE® FD W Series Direct Water Heating System

P-K MODU-FIRE^® FD Direct Water Heating system adds a new dimension of versatility to gas water heating for commercial, industrial, and institutional buildings.

The new W-Series Water Heaters are built in compliance with ASME Section IV stamp and ANSI Z21.10.3-2013/CSA 4.3-2013 standards.

The P-K MODU-FIRE^® FD W Series’ proven design combines full modulation control and forced draft advances with time-tested scale-resistant construction. This direct water heater is the most reliable choice for your supply of hot water. Engineered for numerous years of efficient and dependable operation, its scale-resistant components include industry preferred glass-lined heads and nickel-plated tube sheets.

Models: W750, W1000, W1500, W2000

Features

• Small, modular configuration
• Changes both fuel and air at a constant ratio to match boiler output to actual heat demand
• Smooth 5:1 turndown can track varying loads down to 20% of rated capacity
• Dynamic air density compensation
• Eliminates short cycling in high T variable speed pumping systems
• Accurate firing rate feedback analog output signal proportional to firing rate
• Small diameter Category IV venting
• Easy service construction
• Fire tested before shipment

Advantages

• Simplified, low-cost installation
• Clean, efficient combustion across entire firing range of the boiler
• Maximum small load efficiencies
• Captures up to $0.85 of every fuel dollar
• Perfect part-load performer
• Easy to inspect and maintain; can be disassembled and reassembled in minutes