94% condensing tankless water heater ap15896-1(11/10) printed in usa *all models available for natural gas (n) or propane gas (p) usage. Do not destroy manual. Please read carefully and keep in a safe place for future reference. Certified r direct vent models rheem/ecosense rtgh-95dv* rtgh-84v* ecoh...
Important safety information safety precautions .................................................. 2–8 product information product information .................................................... 8 specifications ........................................................ 9, 10 general descriptions ......
Safety 3 important safety information d a n g e r flammables flammable vapors water heater has a main burner flame. The main burner flame: 1. Which can come on at any time and 2. Will ignite flammable vapors. Vapors: 1. Cannot be seen, 2. Are heavier than air, 3. Go a long way on the floor and 4. Ca...
4 important safety information water supply safety dangers: • water temperature settings – safety and energy conservation are factors to be considered when selecting the water temperature setting of a water heater’s remote control. Water temperatures above 125°f (52°c) can cause death or severe burn...
5 important safety information warnings: • the installation of gas piping must conform to local utility company requirements and/or in the absence of local codes, use the latest edition of national fuel gas code (nfgc), ansi z223.1/nfpa 54, or csa b149.1, natural gas and propane installation code. •...
6 important safety information before operating this water heater, be sure to read and follow the instructions on the label pictured below and all other labels on the water heater, as well as the warnings printed in this manual. Failure to do so can result in unsafe operation of the water heater, re...
7 important safety information electrical safety danger: shock hazard – make sure the electrical power to the water heater is off to avoid electric shock that will result in death or serious personal injury. Warnings: • for your safety, the information in this manual must be followed to minimize the...
8 important safety information general installation and maintenance safety warnings: • this water heater must be installed in accordance with these instructions, local codes, utility company requirements and/or in the absence of local codes, use the latest edition of the american national standard/n...
9 product information product information 30 3 / 8 " (772 mm) 27 5 / 8 " (702 mm) 3 3 / 8 " (86 mm) 5 1 / 2 " (140 mm) 6 1 / 4 " (159 mm) 17 7 / 8 " (454 mm) 18 5 / 8 " (473 mm) 9 3 / 4 " (248 mm) 2 1 / 4 " (59 mm) 5 1 / 2 " (140 mm) 6 1 / 8 " (156 mm) 2 1 / 8 " (54 mm) 3 7 / 8 " (98 mm) 2 7 / 8 " (...
10 product information specifications manufacturer 157k btu models 199.9k btu models rheem ecosense paloma/wai wela ruud richmond rtgh-84dv* and rtgh-84x* ecoh160dv* and ecoh160x* phh-25rdv* and phh-25rof* rutgh-84dv* and rutgh-84x* rmtgh84dv* and rmtgh84x* rtgh-95dv* and rtgh-95x* ecoh200dv* and ec...
11 product information general descriptions typical direct-vent water heater (venting required) product information remote control with power switch to hot water faucet(s) drain valve water filter cold water supply shut-off valve *note: a flexible drain tube can be used to suitable drain to suitable...
12 product information typical outdoor water heater (no venting required) remote control with power switch to hot water faucet(s) drain valve water filter air inlet hard-wire flue terminal cold water supply shut-off valve power supply cord (not supplied) union union manual gas supply line shut-off v...
13 use instructions using your water heater warning: flammable vapors can be drawn by air currents from surrounding areas to the water heater. Vapors can ignite causing death, personal injury, or product damage. • do not store or use flammable or combustible materials (gasoline, paint thinner, adhes...
14 use instructions using your water heater maximum water temperature occurs while the water heater burner is on. To determine the water temperature: turn on the hot water faucet and place a thermometer in the water stream. Notice: water temperature at the faucet may vary depending on the season and...
15 caring for your water heater water heater inspections venting system (direct vent only) the venting system should be inspected annually to ensure all of the vent sections are secure and airtight. Qualified service personnel are familiar with vent system inspections. Warning: do not operate the wa...
16 caring for your water heater burner visually inspect the main burner annually. Danger: shock hazard – removing the front cover panel exposes you to live electricity. Electric shock will cause death or serious personal injury. Remove 6 screws and the unit cover panel. Turn on a hot water faucet. W...
17 caring for your water heater care and cleaning danger: shock hazard – make certain power to the water heater is off before removing protective cover for any reason. Electric shock will cause death or serious personal injury. Warning: combustible materials, such as clothing, cleaning materials, or...
18 caring for your water heater caution: do not tap or force the filter during removal. This can deform and/or damage the filter. Unscrew the water filter from the base of the cold water inlet line and carefully slide it out of the line. Clean the water filter under running water. To remove severe s...
19 caring for your water heater preventive maintenance warning: failure to perform routine preventive maintenance can prevent the water heater from operating properly. Improper operation can cause carbon monoxide dangers, excessive water temperatures, and other potentially hazardous conditions resul...
20 care instructions caring for your water heater draining the water heater warning: failure to follow these draining instructions can cause serious personal injury from scalding and/or product damage. Turn off the water heater by pressing the power on/off button on the control panel. Close the gas ...
21 care instructions caring for your water heater caution: even when drained properly, a small amount of water will remain in the water heater. In cold weather conditions, this water can freeze. If this happens, allow the defrost protection on the water heater at least 30 minutes to melt the frozen ...
22 caring for your water heater draining the water heater (cont.) standard drain method service isolator valve kits may be purchased from the manufacturer, distributor, or place of purchase. The kits include two full-port isolation valves to be used in the inlet and outlet water lines. These kits pr...
23 caring for your water heater vacation and extended shutdown warning: failure to drain the water heater can cause serious personal injury from scalding and/or product damage. If the water heater is to remain idle for an extended period of time, the power and water to the heater should be turned of...
24 care instructions caring for your water heater problem possible cause solution water not hot enough. 1. The temperature may be set too low. 1. Increase the temperature setting at the remote control. 2. The gas valve is not completely opened. 2. Check and completely open the gas valve. 3. Gas supp...
25 care instructions caring for your water heater service error code chart your water heater has an electronic diagnostic system built into it. When the water heater finds a problem, it displays an error code in the led display on the remote control. The following chart lists the error codes along w...
26 error code possible cause solution 1l water heater has buildup of lime deposits. Contact a dealer or qualified service technician. 05 air intake or vent exhaust opening may be blocked. Remove any blockage. (air intake requires 12 in. [30 cm] of clearance.) the vent pipes on the vent termination m...
Installation instructions for the contractor installation.
28 installation instructions exhaust vent pipe air intake pipe 0" min. (0 mm) 0" min. (0 mm) 0" min. (0 mm) 12" (300 mm) standards compliance this water heater must be installed in accordance with these instructions, local codes, and utility company requirements. In the united states where local cod...
29 installation instructions general • every penetration of a floor or ceiling should be sealed. • failure to install and properly vent the water heater to the outdoors as outlined on pages 33 through 46 can result in unsafe operation. • long hot water lines should be insulated to conserve water and...
30 installation instructions general product inspection • visually inspect the water heater for any possible damage. • check the rating plate on the water heater to make sure the water heater was designed to be used with the supplied type of gas (natural or lp). • verify that all included supplied p...
31 installation instructions general notice: the national fuel gas code (nfgc) and csa b149.1 mandate a manual gas shut-off valve. See nfgc/b149.1 for complete instructions. Local codes or plumbing authority requirements may vary from the instructions or diagrams provided and take precedence over th...
32 general installation instructions water heater installation (cont.) typical installation of outdoor water heater (no venting required) this water heater is for outdoor installation only. *note: a flexible drain tube can be used to suitable drain to suitable drain to hot water faucet(s) drain valv...
33 general installation instructions mounting the water heater caution: reinforcement of the wall is required in case the wall is not strong enough to hold the water heater. Failure to do so could result in personal injury and/or product damage. The mounting location for the water heater should allo...
34 installation instructions venting for direct-vent water heater danger: failure to properly vent the water heater to the outdoors as outlined in this venting section will result in death or serious personal injury. To avoid the risk of fire, explosion, or asphyxiation from carbon monoxide, never o...
35 installation instructions venting notice: to use 2-inch vent pipe, a reducing adapter or bushing will be required. Depending on the size of pipe that is chosen for venting the water heater, it might be necessary to use a fitting for stepping down in pipe size, to connect to the water heater. All ...
36 venting installation instructions venting for direct-vent water heater (cont.) in the commonwealth of massachusetts the commonwealth of massachusetts requires compliance with regulation 248 cmr 4.00 and 5.00 for installation of through-the-wall vented gas appliances as follows: 5.08: modification...
