HTP RT-199 Quick Reference Manual

Read the Installation Manual carefully and be sure that your water
heater has been properly assembled BEFORE reviewing these
instructions. Failure to follow the instructions included in the
Installation Manual exactly as written could result in fire, explosion,
electrical shock, or other situation that could result in property
damage, serious personal injury, or death. Installation and service
must be performed by a qualified plumber, licensed gas fitter, or a
professional technician in accordance with all local codes. Improper
installation and/or operation by an unqualified person WILL VOID the
warranty. This water heater must be installed in accordance with all
local codes. In the absence of local codes, follow ANSI Z223.1 /
NFPA 54 or CAN/CSA B149.1, Natural Gas and Propane Installation
Code, as applicable.
CHAPTER 1 – BEFORE INSTALLATION
1. This water heater requires the use of direct vent type pipe as specified
by HTP, Inc. DO NOT use materials that are not specified for use with
this water heater.
2. Always install water heater exhaust vent / intake pipe terminations 12
inches above maximum expected snow accumulation levels.
3. Check the water heater rating plate to ensure the water heater is set to
operate on the gas supplied and that the gas supply line is sized to the
Btu/h required for this water heater.
4. The power supply required is 120VAC at 60Hz. Failure to provide the
correct power supply could result in electric shock or fire.
CHAPTER 2 – CONSIDER INSTALLATION SITE
Locate the water heater in a site where leakage from the water heater or
connections will not result in damage to the site adjacent to the water
heater. When such locations cannot be avoided, it is recommended that a
suitable drain pan, adequately drained, be installed under the water
heater. The water heater is suitable for indoor installations only. DO NOT
install the water heater outdoors or in a bathroom. In addition, install the
water heater in a location that allows for proper clearances to
combustible and noncombustible construction. Consult the rating plate on
the water heater for proper clearances.
Minimum Clearances
MINIMUM CLEARANCES
Installation Clearances from Non-
Combustibles / Combustibles
Top 9 in. (228.6 mm)
Back 5/8 in. (15.9 mm)
Front 6 in. (152.4 mm)
Right Side
3 in. (76.2 mm)
Left Side
Bottom 12 in. (304.8 mm)
120 Braley Rd. P.O. Box 429
QUICK REFERENCE GUIDE
MODELS: RT-199
Recommended Service and Proper
Operation Clearances
9 in. (228.6 mm)
5/8 in. (15.9 mm)
24 in. (609.6 mm) or more (Front of
Water heater)
(A combustible door or removable
panel is acceptable front clearance.)
3 in. (76.2 mm)
12 in. (304.8 mm)
East Freetown, MA 02717-0429
CHAPTER 3 – INSTALLATION
A. INCLUDED ACCESSORIES
B. MOUNTING ON THE WALL

Please refer to the installation manual before mounting the water
heater.

Ensure the mounting location can support the weight of the filled
water heater.

Drill four (4) holes with a 15/32 drill bit in the locations on the wall
bracket.

Mount the wall bracket level on the wall with four (4) anchor bolts.

Align the grooves on the back of the water heater with the tongue
on the wall mounting bracket.

Remove the four screws on the water heater front cover. Remove
the front cover.
C. GAS PIPING
The gas connection fitting on the water heater is ¾" female NPT.
The supply line must be sized for the maximum output of the water heater
model being installed. If there are additional gas appliances connected to
the same supply line, size the supply line according to the COMBINED
total maximum BTUH draw for the appliances as if they were operating at
the same time.
DO NOT operate the water heater until all connections have been
completed and the heat exchanger is filled with water.
D. WATER PIPING
Ensure pipe material is suitable to meet local codes and standards. The
pipe must be clean and without blemish. DO NOT apply torch heat within
12" of the bottom connections of the water heater.
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LP-507 REV. 6.5.14