Delta Limited Hydronic Boilers, 399B-899B

Delta Limited® series is based on the same basic design as the Hi Delta® product line. A reduced set of features and options provides rock-solid heating at a reduced cost. The Delta Limited® product line is not approved for sale or distribution in California.

Features:

• 84% Thermal efficiency.
• Third-party certified under ANSI Z21.13.
• Glass-lined cast iron headers with copper finned tubes.
• All sizes offered for natural gas or propane.
• Pump-off delay, fixed at 300 seconds.
• T&P gauge.
• Flow switch.
• Manual-reset high limit, 240F max.
• Hot surface ignition with 3-try lockout.
• Outdoor trim.
• 45# PRV on size 399. 60# PRV on all other sizes.
• Auto-reset high limit standard on H4-399B only.