PRODUCTSNC1991 SERIES

AVAILABLE MODEL:

  • NC199-OD
  • NC199-DVC

NC1991 SERIES
NC1991 Series Tankless Water Heaters

PRODUCT INFORMATION:

 With more power than any tankless water heater in its class, the NC1991 series is ideal for mid-size homes with up to 4 showers.  Built-in features include safety lock-out, freeze protection, and high elevation adjustment.  PVC CANNOT be used for venting.

These units offer several innovations:
Safety lock out - Default max. 120 degrees (refer to owner's manual for higher temp)
Fully modulating - Automatically adjusts burner level accordingly.
Turbo Flow - Up to 9.8 GPM @ 35 degree temperature rise (7.5 GPM @ 45 degree rise).
Quick Connect - Doubles the output by connecting two identical heaters.
Direct ignition - No standby pilot light.
Thermal fuse - Automatic overheat protection system.
 Resin coated PC board - Increases durability and protection from elements.
Automatic air regulator - Monitors internal temperature/maximizes burner efficiency.
Commercial grade heat exchanger - 25% thicker piping than our competition.
 
>> Available in Natural Gas (NG) and Propane (LP) models only.
>> Temperature Settings: 100-180oF (14 options)
>> Thermal efficiency for all models: 84%
>> Self-diagnostic onboard computer system
>> Back-up battery compatible
>> Recirculation compatible
>> Digital remote included
 
>> WARNING!!!  PVC cannot be used for venting.  Use only Category III (4" stainless steel venting).  N-0751M-DVC requires 3" x 5" concentric-type stainless steel venting.

 Available Models:

NC1991-DVC

NC1991-OD

INSTALLATION PHOTOS:

ACCESSORIES:

  • Isolation valves (#IK-WV-200-1-TH or #IK-WV-200-1-SW)
  • Pipe cover (NC199-DVC use #PC-5S)
  • Remote controller outdoor junction box (#RC-OJB)
  • ScaleShield (#SS-HB-1)
  • Commercial H2Flow (#CH2F-*) *depends on number of units and total flow rate
  • Quick-connect cable (#QC-2)
  • System Controller (#SC-301-6M)
  • Recess box (#RB-700) for NC1991-OD model only.