Installation Manual

H-Series Demand Duo™ 2 Installation and Operation Manual 9
Model Number CHS398100HV CHS398100HVA*** CHS320100HV
Dimensions (Assembled) in. (mm) w x h x d: 32.4 x 78.8 x 40.2 (822.7 x 2,001.5 x 1,021.1)
Weight Tank: 310 lbs (141 kg) Complete System: 530 lbs (240 kg)
Installation Type Internal (Indoor) Commercial Applications
Category and Ignition System Category IV, Direct Electronic Ignition
Gas Consumption Btu/h (kW/h)
Minimum: 30,400 (9)
Maximum: 398,000 (116.6)
Minimum: 30,400 (9) Maximum: 320,000
(93.7)
Water Supply Pressure 150 PSI (Maximum)
Temperature Setting 98°F (37°C) to 185°F (85°C)
Tank Volume 119 Gallons (450 Liters)
First Hour Delivery Rating* 551 Gallons (2,085 Liters) 460 Gallons (1,741 Liters)
Sound Level (Single unit) 49 dB 48 dB
Electrical Data
(Tankless Water Heater)
Normal: 265 W, Standby: 44 W, Freeze
Protection: 148 W, Max Current: 5.5 A
Normal: 233 W, Standby: 44 W, Freeze
Protection: 148 W, Max Current: 5.5 A
Fuse: Tankless Water Heater Engine: 10 Amps, Pump Controller: 10 Amps
Gas Supply Pressure** Natural: 3.5 - 10.5 in. w.c. Propane: 8.0 - 13.5 in. w.c.
By-Pass Flow Control Electronic
Connections
Gas Supply Inlet: 1-1/2 in. MNPT Hot Water Outlet: 1-1/2 in. MNPT
Cold Water Inlet: 1-1/2 in. MNPT
Electric Connections
Appliance: AC 120 Volts, 60Hz.
Integrated Temperature Controller: DC 12 Volts (Digital)
Water Flow Control Water Flow Sensor, Electronic Water Control and Bypass Control
Water Temperature Control Simulation Feed Forward and Feedback
Recovery 459 GPH @ 100° ∆T
376 GPH @100° ∆T
High Altitude Approved Up to 10,200 Ft (3,109 M)
Complies with South Coast Air
Quality Management District 14 ng/
J or 20 ppm NOx Emission Levels
Yes
Ultra Low NOx Yes
Certifications AHRI, ANSI Z21.10.3, CSA 4.3 and ENERGY STAR® Certified (CU199i)****
Controller (One per Tankless Water
Heater)
MCC-91-2US
Recovery Pump Grundfos UPS 26-150 (S)F; 3 Speed
Venting Material Polypropylene, PVC, CPVC
Venting Options
Concentric Polypropylene, Twin Pipe, or Common Vent Polypropylene/PVC/CPVC.
Vent lengths up to 150 ft.
Wi-Fi Ready Yes
*First Hour Delivery Rating is a theoretical calculation based on 70% usable tank capacity.
Tank Capacity x .70 + (recovery) = First Hour Delivery Rating
**Maximum gas supply pressure must not exceed the value specified by the manufacturer.
***Model includes an AMSE rated tank.
****ENERGY STAR® certification for the CU199 tankless engine is listed on the residential ENERGY STAR® website.