| PH-28RDVS |
PH-28RDVS N/P Residential Direct Vent
Gas Tankless Water Heater
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Unique safety features:
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Paloma
Industries is the #1 gas appliance manufacturer in Japan. The Residential model
PH28 incorporates TWO unique safety features not found on competitive tankless
gas water heaters.
First is the OXYGEN DEPLETION SENSING system (Indoor Model Only). Emissions from
the sampling burner are constantly analyzed for carbon monoxide gas. If necessary,
the fan speed is adjusted by the on board CPU. If the fan speed adjustments do
not resolve the combustion problem, the burner will be turned off and a potentially
dangerous situation avoided. An error message will be displayed.
Second is the FILM TYPE OVERHEAT SENSING. Waiwela alone senses high temperature
at all positions surrounding the combustion chamber. Other manufactures only sense
at one point on the combustion chamber.
Three remote controls (one main control and two bath remote controls) can be installed
together. One main remote control (UMC-117) comes with each unit.
10 Year warranty on heat exchanger.
3 Year warranty on parts.
| SPECIFICATIONS - MODELS AND VENTING FOR ALL PH-28R MODELS | |
| BTU Input Range | 19,000 ~ 199,900 (fully modulating) |
| Maximum Hot Water Output | 8.5 GPM (40 degree rise at 30 psi) |
| Minimum Flow for Ignition | 0.66 GPM |
| Dimensions (inches) | 14 7/8 (w) x 25 3/8 (h) x 11 1/8 (d) |
| Working Water Pressure | 14 ~ 150 psi |
| Temperature Range | 100 ~ 140 degrees F |
| Gas Connection | 3/4" NPT Femal (with included gas shutoff valve) |
| Water Connection | 3/4" NPT Male |
| Efficiency Rating | 84% |
| DOE Energy Factor | 0.82 |
| Gas
Inlet Pressure (Indoor and Outdoor Models) |
Natural
Gas : Min 4.0"W.C.; Max 10.5"W.C. LP Gas: Min 8.0"W.C.; Max 14.0"W.C. |
| Gas
Inlet Pressure (Direct Vent Model) |
Natural
Gas: Min 4.5"W.C.; Max 10.5"W.C. LP Gas: Min 10.0"W.C.; Max 14.0"W.C. |
| Low
NOx Compliant (SCAQMD Rule 1146.2) |
Yes |
| Electrical Requirement | 120 V/60 Hz AC, 2 Amps |
| Power Cord (Except Outdoor) | 10-foot. 3-pin indoor power cord (pre-installed) |
| Freeze Protection | Minus 30 degrees F (including windchill factor) |
| Controller/Diagnostic Display | UMC-117 |
| Electric Manifold Ready? | Yes: 2 to 20 units (use MIC-180 controller) |
| DUOnex™ Ready? | Yes: 2 units with DUOnex™ Cable |
| Gas Shutoff Valve | Included |
| Vent Requirement (Indoor/Direct Vent) | 4" Category III stainless steel venting required |
| Vent Maximum Length | 37.5 feet (with three 90-degree elbows) |
| Air Intake (Direct Vent) | 4" Stainless Steel, PVC or aluminum |
| Air Intake Maximum Length | 37.5 feet (with four 90-degree elbows) |
| Net Weight | 55 lbs. |
| SAFETY ENGINEERING | |
| Carbon Monoxide Safety | ICAD™ - Proprietary system to monitor and optimize combustion (Not on Outdoor version) |
| Flame Failure | Three separate flame rods to monitor flame failure. |
| Anti-boil Protection | Temperature Sensor |
| Anti-scald Protection | -
Bath controller maximum temp 120°F - When on, Bath Controller takes priority over others. - While hot water is running, Bath Controller max. temp. cannot be raised above 112°F. |
| FEATURES | |
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| WARRANTY | |
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1-800-605-6542
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