Installation Guide

Pomona, CA Clemmons, NC Nashville, TN
Tel: [phone] www.haywardpool.com
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
13
INDOOR INSTALLATION AND VENTING
POSITIVE AND NEGATIVE PRESSURE VENTING SYSTEMS
The heater is designed such that it may be vented using either a negative-pressure or a positive-pressure
venting system. The appropriate system of venting for a particular site will depend on many factors such as
vent termination needs (horizontal/vertical), and the cost of venting system. Table 3 lists the indoor venting
kits available and the limitations of each system. Multipe forced- or induced-draft units should never be vented
uisng common venting or vent terminations.
Table 3
Indoor Vent Kits and Limitations of Venting Systems
Indoor Vent Kit Part
Number
Description
For Use With
Heater
Models
Vent Pipe Limitations
Vent Pipe
Material
Vent
Termination
Requirement
UHXNEGVT11501
Indoor Vent Adapter Kit,
Negative Pressure,
Vertical Venting
Applications
H150FD
50 ft max vetical height,
25 ft max horizontal length
(horizontal length cannot
exceed 1/2 of vertical height),
3 elbows max
Single or Double
Wall Galvanized
Non-Sealed
Vent Pipe
Vertical Only,
Termination Above
Roof of House/
Building
UHXNEGVT12001 H200FD
UHXNEGVT12501 H250FD
UHXNEGVT13001 H300FD
UHXNEGVT13501 H350FD
UHXNEGVT14001 H400FD
UHXNEGVT15001 H500FD
UHXPOSHZ11501
Indoor Vent Adapter Kit,
Positive Pressure,
Horizontal or Vertical
Venting Applications
H150FD
50 ft max with 1 elbow,
40 ft max with 2 elbows,
or 30 ft max with 3 elbows
(horizontal or vertical)
Single or Double
Wall Stainless
Steel Sealed
Vent Pipe
Horizontal or
Vertical, Termina-
tion Immediately
Outside Wall of
House/Building
UHXPOSHZ12001 H200FD
UHXPOSHZ12501 H250FD
UHXPOSHZ13001 H300FD
UHXPOSHZ13501 H350FD
UHXPOSHZ14001 H400FD
UHXPOSHZ15002 H500FD
CLEARANCES
The heater must be installed such that the installation and
service clearances from combustible materials shown in Table
4 are maintained. This heater may be installed on combustible
oors. Do not install heater in a closet.
AIR SUPPLY
Indoor installations and outdoor shelters (conned spaces)
must be provided with adequate combustion and ventilation air
vents to assure proper heater operation. These vents must be
sized according to the requirements stated in paragraph A or B below (whichever applies to the installation).
These vents must never be obstructed when heater is in operation.
When air blowers are used in spa/hot tub installations and are located in proximity to the heater, caution
must be observed to ensure sufcient combustion air is available to the heater for proper combustion. A separate
blower air duct is recommended.
Table 4
Indoor Installation Clearances
Heater Panel Required Clearance
Top 36 inches
Front 24 inches
Back 6 inches
Water Connection Side 12 inches
Side Opposite Water
Connection
6 inches