Hayward Pools H250IDL2, H400IDL2, H350IDL2 User Manual
®
HAYWARD
Installation, Operation & Service Procedures
Pool and Spa/Hot Tub Heaters
Models H250IDL2, H350IDL2 & H400IDL2
FOR YOUR SAFETY
WARNING: If the information in these
instructions is not followed exactly, a fire or
explosion may result causing property damage, personal injury, or death.
– Do not store or use gasoline or other flam
mable vapors or liquids in the vicinity of this
or any other appliance.
-
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance
• Do not touch any electrical switch; do not
use any phone in your building
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call
the fire department.
– Installation and service must be performed
by a qualified installer, service agency or the
gas supplier.
SAFETY
YOUR
FOR
This product must be installed and serviced by authorized personnel, qualified in
pool/spa heater installation. Improper installation and/or operation can create carbon
monoxide gas and flue gases that can cause serious injury
For indoor installations, as an additional measure of safety, Hayward strongly recommends installation of suitable Carbon Monoxide (CO) detectors in the vicinity of this appliance and in any adjacent occupied spaces. Improper installation and/or operation will
void the warranty
.
, property damage, or death.
PATENT NO. 6026804 1303026201 1105
Contents
Section I. General Information
ECTION I. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
S
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Hayward heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
ECTION V. CONSUMER OPERATION & MAINTENANCE PROCEDURES . . . . .23
S
SECTION II. HEATER SIZING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Selecting the correct size heater . . . . . . . . . . . . . . . .4
For a swimming pool . . . . . . . . . . . . . . . . . . . . . . . . .4
For a spa or hot tub . . . . . . . . . . . . . . . . . . . . . . . . . .4
SECTION III. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Equipment inspection . . . . . . . . . . . . . . . . . . . . . . . . .5
Important notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Conformance with codes . . . . . . . . . . . . . . . . . . . . . .5
Sea Level/high altitude installation . . . . . . . . . . . . . . .5
Location of Heater . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Flooring
Reversible water connections . . . . . . . . . . . . . . . . . .5
Outdoor installation and venting . . . . . . . . . . . . . . . . .6
Indoor installation and venting . . . . . . . . . . . . . . . . . .7
Air supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Equipment located in confined spaces . . . . . . . . . . .7
Vertical Venting—Negative Pressure . . . . . . . . . . . . .8
Indoor Adapter Kit Installation . . . . . . . . . . . . . . . . . .8
Vent Sizing Table . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Horizontal or Vertical Venting-Positive Pressure . . . . . .10
Special Gas Vent Adapter Kit Installation . . . . . . . . .10
Indoor Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Connecting Special Gas Vent to the Heater . . . . . .11
Gas supply and piping . . . . . . . . . . . . . . . . . . . . . . .12
All gas installations . . . . . . . . . . . . . . . . . . . . . . . . . .13
Water piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Installation above pool/spa surface . . . . . . . . . . . . .16
Automatic chlorinators and chemical feeders . . . . .16
Pressure relief valve . . . . . . . . . . . . . . . . . . . . . . . . .16
Electrical connections . . . . . . . . . . . . . . . . . . . . . . . .17
Remote control connection . . . . . . . . . . . . . . . . . . .18
Remote thermostat connection
Connecting a remote . . . . . . . . . . . . . . . . . . . . . . . .18
2-Wire remote thermostat . . . . . . . . . . . . . . . . . . . .18
2-Wire Remote Switch . . . . . . . . . . . . . . . . . . . . . . .18
3-W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
. . . . . . . . . . . . . . . .
ire Remote Switch
. . . . . . . . . . . . . . . . . . . . . . .
18
18
SECTION VI. QUALIFIED TECHNICIAN – MAINTENANCE/SERVICING . . . .28
SECTION VII. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . .36-39
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
SECTION IV
. INSTALLER CHECK-OUT AND START-UP . . . . . . . . . . . . . . .20
PARTS ILLLUSTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Gas line testing
Gas pressure test procedure . . . . . . . . . . . . . . . . . .20
Installation below pool/spa surface . . . . . . . . . . . . .22
Two speed pump . . . . . . . . . . . . . . . . . . . . . . . . . . .22
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
W
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Pool/Spa water chemistry . . . . . . . . . . . . . . . . . . . .23
Using chlorinators and chemical feeders . . . . . . . . .23
Heater operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . .24
Temperature control operation . . . . . . . . . . . . . . . . .25
Set point adjustment . . . . . . . . . . . . . . . . . . . . . . . .25
Periodic inspection . . . . . . . . . . . . . . . . . . . . . . . . . .26
Winterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Opening drain valve . . . . . . . . . . . . . . . . . . . . . . . . .27
Spring start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Control
External heat exchanger inspection and cleaning . .28
Heat exchanger removal . . . . . . . . . . . . . . . . . . . . .29
Combustion chamber . . . . . . . . . . . . . . . . . . . . . . . .29
Burner inspection and cleaning . . . . . . . . . . . . . . . .30
Burner removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Burner Installation . . . . . . . . . . . . . . . . . . . . . . . . . .30
Gas valve replacement . . . . . . . . . . . . . . . . . . . . . .30
Ignitor removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Main burner orifices . . . . . . . . . . . . . . . . . . . . . . . . .31
Gas conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Control Locations . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Temperature controls . . . . . . . . . . . . . . . . . . . . . . . .31
Vent Pressure switch . . . . . . . . . . . . . . . . . . . . . . . .31
High limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Blower vacuum switch . . . . . . . . . . . . . . . . . . . . . . .32
Water pressure switch . . . . . . . . . . . . . . . . . . . . . . .33
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
By-pass valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Thermal control valve . . . . . . . . . . . . . . . . . . . . . . . .34
ransformer
T
Combustion blower . . . . . . . . . . . . . . . . . . . . . . . . . .35
ARRANTY & WARRANTY CARD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35
42-43
Introduction:
his manual contains instructions for installation,
T
peration, maintenance, troubleshooting and parts
o
lists for the safe use of the Model H250IDL, H350IDL
and H400IDL Low NOxswimming pool/spa/hot tub
heaters.
Hayward strongly recommends that the manual be
read by the installer before installing the swimming
pool/spa/hot tub heater. If after reviewing the manual,
any questions still remain unanswered, contact the
factory or local representative. Following heater
installation, the installer should leave the manual with
the consumer for future reference.
Hayward heaters:
The H-Series gas-fired pool/spa heater is the
result of nearly 50 years in the engineering and production of the finest water heating equipment. The
direct fired finned-tube design of the pool/spa heaters
is the most advanced in the industry, offering highly
efficient, economical pool/spa heating and scale free
operation. No effort has been spared in making the
most rugged, highly dependable, easy-to-maintain
pool/spa heater available.
The H-Series heaters are suitable only for heating
of swimming pools, spas, or hot tubs. These heaters
should not be used as space heating boilers, general
purpose water heaters, or for heating salt water pools
and fish ponds. When installed and operated in accordance with the manual’s instructions, the H-Series
heater will provide many years of trouble free service
and increased pool/spa enjoyment.
Limited warranty summary:
e warrant the H-Series pool/spa heater to be
W
ree from defects in materials and workmanship, and
f
we will within one year from date of installation for all
users, for the original purchaser, repair or, at our
option, replace without charge any defective part.
We further warrant that if the heat exchanger or
exchanger headers (water-containing section) leak
within one year from date of such installation for all
users, due to defects in materials and workmanship,
we will provide a replacement part.
Under the terms of the special FireTile™ limited
warranty, we will replace any FireTile™ components
used in the combustion chamber of the pool/spa
heater which fail from defects in the workmanship and
materials under normal use and service in a single
family residential application for a period of (5) years.
Cost of freight, installation, fuel, and service labor
(after one year) is at user’s expense. For full details
of warranty agreement, see warranty certificate
included in this manual.
CAUTION: If the pool/spa heater is damaged or
destroyed by improper maintenance, excessive
water hardness, incorrect water chemistry, or
freezing it is not covered under the manufacturer’s warranty.
2
3
Section II. Heater Sizing
Temp. Rise F
Model
H250
25 3015 2010 35
2309
1540
1155
924 770 660
H400
3695 2463 1848 1478 1232 1056
H350
3233 2156 1617 1293 1078 924
Pool Surface Area In Square Feet
Figure 2 - Recommended Heater Model
Model
H400
Figure 3 - Recommended Heater Model
Spa/Hot Tub Size in Gallons
Time in Minutes to Raise Spa/Tub Temperature 30 F
200 300 400 500 600 700 800 900 1,000
9 14 19 23 28 33 37 42 47
H250
15 23 31 38 46 54 61 69 77
H350
11 16 21 27 32 37 43 48 54
1
5
7
12
10
4
2
6
8
11
9
3
Section III. Installation
Selecting the correct size heater:
ize, average wind velocity, ambient temperature, and
s
desired increase in temperature over ambient temperature, and desired increase in temperature over ambient. A pool/spa in a warm area with little or no wind
will not require as large a heater as one in a cool
windy location. Detailed sizing information is provided
below.
For a swimming pool:
1. Determine pool’s surface area in square feet.
2. Determine desired pool water temperature
3. Determine average air temperature of coldest
4. The temperature rise is difference between 2 & 3.
4
actors influencing heater sizing include pool/spa
F
For indoor pool installations divide the pool’s
surface area by 3.
Pool Surface
Figure 1
(usually 78 - 82º F).
month of use.
Area
5. Locate in Figure 2 the surface area equal to or just
greater than the pool’s surface area and the
temperature degree rise and select the appropriate
heater model.
Figure 2 is based on 3
elevation of up to 2,000 feet above sea level.
When not in use, keep pool covered to
reduce heat loss, chemical usage, and dirt load
on the filtering system.
For a spa or hot tub:
Determine spa capacity in gallons (surface area x
average depth x 71⁄2).
The reference table lists the time required in min-
utes to raise the temperature of the spa/hot by 30ºF,
read to the left and select the appropriate heater
model.
This guide can be adjusted for other temperature
rises. For example, if a 15ºF increase in temperature
is desired, simply divide the time for 30ºF rise by the
ratio of 30/15=2.
NOTE: Heat losses and /or heat absorbed by
spa walls (such as concrete) or other objects will
add to the heat-up time.
Spa sizing is based on an insulated and covered
spa. Always cover spa or hot tub when not in use to
minimize heat loss and evaporation.
1
⁄2 MPH wind velocity and
Equipment inspection:
n receipt of the heater equipment, inspect the
O
eater carton for damage. If any carton is damaged,
h
note it when signing for it. Remove the equipment
from the carton(s) and advise the carrier of any damages at once.
Important notice:
The instructions herein are intended for the use of
a qualified technician, specifically trained and experienced in the installation of this type of heating equipment. Some states or provinces require that installation be licensed. If this is the case in the state or
province where heater is located, the contractor must
be properly licensed.
WARNING: Failure to comply with the appliance and vent package installation instructions
and service instructions in this manual may result
in equipment damage, fire, asphyxiation, or carbon monoxide poisoning. Exposure to products
of incomplete combustion (carbon monoxide) can
cause cancer and birth defects or other reproductive harm.
Conformance with codes:
The heater shall be installed in accordance with all
local and state codes. The heater installation must
conform to the National Gas Code ANSI Z223.1 (latest edition) and with the requirements of the authority
having jurisdiction. Design Certification of the heater
is in compliance with ANSI Z21.56•CSA4.7.
For Canadian installations, the heater is to be
installed in accordance with the standards CAN/CGA
B149.1 and B149.2 – INSTALLATION CODES FOR
GAS BURNING APPLIANCES AND EQUIPMENT
and/or Local Codes, and if applicable, Standard CSA
C22.1 – CANADIAN ELECTRICAL CODE, Part 1.
Sea Level/high altitude installation:
The H-Series heaters may be installed up to 2,000
feet of elevation above sea level.
Location of heater:
Locate the pool/spa heater in an area where leak
age of heat exchanger or connections will not result
in damage to the area adjacent to the heater or to the
structure. When such locations cannot be avoided, it
recommended that a suitable drain pan, with drain
outlet, be installed under the heater. The pan must
not restrict air flow
This heater must be installed at least five feet from
the inside wall of a pool/spa unless separated from
the pool/spa by a solid barrier
installed also at least five feet from the wall of an
above-ground pool.
The heater must be installed such that the location
of the vent assembly outlet relative to adjacent public
.
This heater must be
.
-
walkways, adjacent buildings, openable windows, and
building openings complies with the National Fuel
Gas Code, ANSI Z223.1 and/or CAN/CGA B149
Installation Codes.
Flooring:
This heater can be installed on combustible flooring.
Reversible water connections:
This heater is designed so that it can be installed
with the water connections located on either the right
or left side. Heaters are shipped from the factory with
the water connections on the right side. To bring the
water connections to the left side, follow step-by-step
instructions below and refer to the illustration in
Figure 5. These procedures should be performed by
a trained service technician before the heater is
installed.
1. Remove four (hot) vent screws and remove
panel.
2. Remove heater top.
3. Remove screws from left and right side
access panels. Remove panels.
4. Remove the front panel.
5. Disconnect high limit wires and reroute them
to opposite side of heater. Disconnect the
thermistor leads from control panel and pull
through intermediate panel.
6. Remove pressure switch and tube.
7. Remove 12 nuts retaining front header and
carefully remove header.
CAUTION: By-pass and thermal governor may
become dislodged when removing front heater. They
must be reinstalled properly prior to reinstallation of
front header.
CAUTION: Header O-ring may be re-used if not
permanently deformed. if installing new O-rings,
Jack’s 327 Lube may be liberally applied to O-ring to
keep it in place during header installation.
8. Remove four screws retaining air deflector,
and remove air deflector.
9. Unplug wires and pressure tap tubes from
combustion blower
10. Remove screws retaining flue collector and
remove flue collector/combustion blower assembly.
1. Remove screws securing heat exchanger
1
from tube sheets on both front and rear of
heater.
.
Figure 4
5
R
OTATE
H
EAT EXCHANGER
180°
DO NOT FLIP
Outdoor Installations
Top - Open and unobstructed
Front - 24”
Back - 6”
Right side (Water side) - 12”
Left side - 6”
1 Square Inch Per 4000 BTU Per Hour
Input Combustion Air Ventilation Air
250,000
350,000
400,000
62.5 square in.
87.5 square in.
100 square in.
62.5 square in.
87.5 square in.
100 square in.
I
ndoor Installations
Top - 36”
Front - Unobstructed
Back - 6”
Right side (Water side) - 12”
L
eft side - 6”
For use on combustible floors.
Do not install in a closet.
1 Square Inch Per 4000 BTU Per Hour
Input Combustion Air Ventilation Air
250,000
350,000
400,000
62.5 square in.
87.5 square in.
100 square in.
62.5 square in.
87.5 square in.
100 square in.
Figure
10
1 Square Inch Per 2000 BTU Per Hour
Input Combustion Air Ventilation Air
250,000
350,000
400,000
125 square in.
175 square in.
200 square in.
125 square in.
175 square in.
200 square in.
Figure
11
1 Square Inch Per 1000 BTU Per Hour
Input Combustion Air Ventilation Air
250,000
350,000
400,000
250 square in.
350 square in.
400 square in.
250 square in.
350 square in.
400 square in.
Figure
9
eft Access
L
anels
P
12. Lift out heat exchanger and rotate it 180
degrees horizontally – DO NOT FLIP IT OVER.
(This End Up ) sticker should be pointing up.
13. Reinstall front header on heat exchanger
(“TOP” marking on header should now be on
the bottom).
14. Torque header nuts from 5 to 7 ft lbs. in the
sequence shown by Figure 4. Do not
overtighten.
15. Move the pressure switch tube over to the left
side of the heater and route through hole in
intermediate panel. Insert tube in header
fitting and tighten the ferrule down with the
nut.
16. Reattach the high limit wires to the switches.
Route thermistor leads through intermediate
panel, into control compartment, and plug into
control board.
17. Repeat steps 1-4 and 8-11 for reinstallaton.
Outdoor installation and venting:
The following installation and service clearances
must be maintained from surfaces to provide adequate air flow to the heater.
6
eater Top
H
Figure 6
Reversible Water Connections
Figure 5
Right Access
Panels
1. Outdoor models are self-venting and do not
require additional vent piping.
2. Do not install in a location where growing
shrubs may in time obstruct a heater’s
combustion air and venting areas.
3. Do not install this appliance under an overhang
less than 3 feet from the top of the appliance.
The area under the overhang must be open
on three sides.
4. Do not install heater where water spray from
ground sprinklers can contact heater.
Sprinkler water could cause operating problems.
5. Do not install under a deck.
6. Any enclosure around the heater must provide
a combustion air vent commencing within 12
inches of the bottom of the enclosure. The
vent opening shall have a minimum free area
of 1 square inch per 4,000 BTU per hour of
total input rating of all heaters in the
enclosure. See Figure 7.
Figure 7
Indoor installation and venting:
he following installation and service clearances
T
ust be maintained from combustible materials.
m
Figure 8
Air supply:
Indoor installations and outdoor shelters must be
provided with adequate combustion and ventilation air
NOTE: For more detailed methods of providing air for
combustion and ventilation, refer to latest edition of
the National Fuel Gas Code, ANSI Z223.1.
vents to assure proper heater operation. These vents
must be sized according to the requirements stated in
A and B below and must never be obstructed when
heater is in operation.
When air blowers are used in spa/hot tub installations, caution must be observed to insure sufficient
combustion air is available to the gas heater for proper combustion. A separate blower air duct is recommended.
Equipment located in confined spaces:
A. All Air Supply From Inside The Building: The
confined space shall be provided with two permanent openings communicating directly with an
additional room(s) of sufficient volume so that the
combined volume of all spaces meets the criteria
for an unconfined space (a space whose volume is
not less than 50 cubic feet per 1000 BTUH). The
total input of all gas utilization equipment installed
in the combined space shall be considered in
making the determination. Each opening shall have
a minimum free area of 1 square inch per 1,000
BTU per hour of the total input rating of all gas
utilization equipment in the confined space, but not
less than 100 square inches. See Figure 9. One
opening shall be within 12 inches of the top and
one within 12 inches of the bottom of the enclosure.
B. All
Air Supply From Outdoors:
The confined
space shall be provided with two permanent
openings, one commencing within 12 inches of
the bottom of the enclosure. The opening shall
communicate directly, or by ducts, with the
outdoors or spaces (crawl or attic) that freely
communicate with the outdoors.
When directly communicating with the
1.
outdoors, each opening shall have a
minimum free area of 1 square inch per 4,000
BTU per hour of total input rating of all
equipment in the enclosure. See Figure 10.
2. When communicating with the outdoors
through vertical ducts, each opening shall
have a minimum free area of 1 square inch
per 4,000 BTU per hour of total input rating of
all equipment in the enclosure. See Figure 10.
3. When communicating with the outdoors
through horizontal ducts, each opening shall
have a minimum free area of 1 square inch
per 2,000 BTU per hour of total input rating of
all equipment in the enclosure. See Figure 11.
4. When ducts are used, they shall be of the
same cross-sectional area as the free area of
the openings to which they connect. The
minimum dimension of rectangular air ducts
shall be not less than 3 inches.
7
Vertical Venting—Negative
Vent Collar Diameters
Model Diameter
H250IDL
H350IDL
H400IDL
6 inches
8 inches
8 inches
Vent Diameter
6 in.
7 in.
8 in.
9
in.
1
0 in.
H
250IDL
H
350IDL
H
400IDL
Vent Sizing Table for Vertical Negative Pressure Vending
Minimum Height (H) Maximum Hieight (H) Minimum Height (H) Maximum Hieight (H) Minimum Height (H) Maximum Hieight (H)
T
able 1: Type B Vertical Vent with Type B Vent Connector
L
ateral Length (L) must be less than Ω of the Vertical Vent Height (H)
V
ent System can have up to three 90 degree elbows.
F
8
'
6'
6'
6' 6'
6'
6'
6'
6'
6'
6'
6'50'50'
5
0'
50'
50'
50'
50'
50'50'
50'
Not RecommendedNot Recommended
N
ot Recommended Not Recommended
Not Recommended
N
ot Recommended
Not Recommended
50'
Vent Diameter
6 in.
7 in.
8 in.
9 in.
10 in.
H250IDL
H350IDL
H400IDL
Minimum Height (H) Maximum Hieight (H) Minimum Height (H) Maximum Hieight (H) Minimum Height (H) Maximum Hieight (H)
Table 2: Type B Vertical Vent with Single Wall Vent Connector
Lateral Length (L) must be less than Ω of the Vertical Vent Height (H)
Vent System can have up to three 90 degree elbows.
8'
6'
6'
6'6'
6'
50'
20'
50'
30'30'
N
ot RecommendedNot Recommended
Not Recommended Not Recommended
N
ot Recommended
Not Recommended
N
ot Recommended
50'
Not Recommended Not Recommended Not RecommendedNot RecommendedNot RecommendedNot Recommended
Not Recommended
Not RecommendedNot Recommended
Not RecommendedNot Recommended
Pressure:
ocate the pool/spa heater as close
L
s practical to a chimney and gas sup-
a
ply according to the Figures 12 and 13.
Size vent according to the venting
tables. The maximum vent height
should not exceed 50’. The total vent
length should not exceed one half of
the total vertical vent height. The vent
system can have up to three 90 degree
Below Ground Installation
elbows. See Figure 16 on page 9.
The cap opening of the vent must
terminate in accordance with Figure
16. The vent cap location shall have a
minimum clearance of 4 feet horizontally from electric meters, gas meters
regulators and relief openings.
The weight of the vent or chimney
must not rest on the heater. Support
must be provided in accordance with
applicable codes. The vent pipe must
be supported to maintain proper clearances from combustibles.
Venting extending above the roof by
more than five feet should be guided or
braced above or below the roof to protect
the vent from wind and/or snow damage.
Indoor Adapter Kit Installation:
Before connecting vent to heater
must be installed to the heater exhaust outlet, and a
drain plug and outlet cover must be installed. These
components are contained in the indoor
The installation of the kit is done as follows:
1. Remove the 4 screws that fasten the vent cover
Indoor Vent Collar
Installation
Figure 14
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to the internal vent assembly. Discard the vent
, a vent collar
Figure 13
Adapter Kit.
cover. Install the vent collar and gasket over
exhaust using 4 screws previously removed.
See Figure 14.
2. Install plug into drain at rear of heater. Install
drain outlet cover over the drain outlet using 2
screws. See Figure 15.
3. Install vent pipe on the indoor vent collar. The
collar will accept 6” or 8” vent diameter, depending
upon the model of heater
“Indoor Installation and Venting” for indoor
installation and venting guidelines.
Drain Outlet Cover
Installation
Figure 15
Indoor Installation
Figure 12
. See section titled
Table 1 is used
when sizing
Type B
double-wall
gas vent
connected
directly to the
appliance.
Table 2 is used
when sizing a
single-wall metal
vent connector
attached to a
Type B doublewall gas vent.
Figure 16
The vent
termination
should not
be less
than 8 FT.
from a
vertical
wall.
9
Horizontal or Vertical Venting—Positive
Pressure:
he heater can be vented either horizontally or
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vertically with positive pressure vent system if one of
the Special Gas Vent Systems listed in Figure 17 is
used. Do not use a draft hood with this heater. The
vent system must be installed in accordance with the
National Gas Code ANSI Z223.1 or the CAN/CGA
B149 Installation Codes, Local Codes and the Vent
Manufacturer’s Instructions.
See Figure 17 for permissible vent diameters for
these heaters.
See Figure 18 for maximum permissible vent
lengths.
The Vent System must terminate with a Vent
Terminal approved for this Pool Heater. See figure 19
for a list of approved vent terminals.
A Special Gas Vent Adapter Kit must be installed
on heater before connecting the Special Gas Vent to
the Heater.
Special Gas Vent Adapter Kit
Installation:
A Special Gas Vent Adapter collar must be installed
to the heater exhaust outlet, and a drain plug and outlet cover must be installed. These components are
contained in the Special Gas Vent Adapter Kit.
The installation of the kit is done as follows:
1. Remove the 4 screws that fasten the vent
cover to the internal vent assembly. Discard
the vent cover. Install the vent adapter and
gasket over exhaust using 4 screws
previously removed. See Figure 20.
2. Install plug into drain outlet at rear of heater.
Install drain outlet cover over the drain outlet
using 2 screws. See Figure 21.
Special Gas Vent Adapter Installation Figure 20
Indoor Installation:
he following installation and service clearances
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ust be maintained from the heater to combustible
m
materials. See Figure 22.
Indoor Installation Figure 22
Top - 36”
Front - Unobstructed
Back - 6”
Right side (Water side) - 12”
Left side - 6”
For use on combustible floors.
Do not install in a closet.
*For installations in which the vent terminates
in a wall directly behind the heater, allow 23”
between the rear of the heater and the outside of
the wall. See Figure 23.
Clearance for Vent Termination in Wall
Directly Behind Heater
Figure 23
Connecting Special Gas Vent to the
Heater:
ttach the Special Gas Vent to the Vent Adapter
A
using the adhesive specified by the vent manufacturer. Do not drill holes or use screws to connect Vent to
Vent Adapter.
1. Apply a bead of adhesive, about 1⁄8” in diameter,
completely around the male end of the vent section,
between
2. Fully insert the male section into the female fitting
of the Vent Adapter.
3. Secure vent section Vent Adapter by sliding the
ring of the vent section over the tabs of the Vent
Adapter and bending the tabs over the ring. See
Figure 24.
Attaching Vent to Vent Adapter
Figure 24
1
⁄4” to 3⁄8” from the end of the section.
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Drain Outlet Cover Installation Figure 21
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Gas supply and piping:
efer to the charts on Figure 25 for gas pipe sizing for low pressure natural gas, low pressure single state
R
ropane gas, and high pressure two stage propane gas systems
p
.
ediment Trap
S
Figure 26
All gas installations:
The H-series heater is to be installed with a gas
connection located on the left side. Insert the pipe to
the gas valve through the grommet in the cabinet
side. It is recommended that a ground-joint union be
installed inside (or outside if space does not allow)
the heater cabinet to facilitate servicing the burner
assembly tray. See Figure 26.
A C.S. A. Certified main gas valve shutoff must be
installed outside of cabinet and within 6 feet of the
heater. Gas shutoff valve must have and I.D. large
enough to supply the proper amount of gas volume to
the heater.
NOTE: Apply joint compounds (pipe dope) sparingly and only to the male threads of pipe joints. Do
not apply joint compound to the first two threads. Use
joint compounds resistant to the action of liquefied
petroleum gas. Do not overtighten the gas inlet pipe
or damage may result. See Figure 26.
o prevent dirt and moisture from entering gas
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valve, a sediment trap should be installed in the gas
line close to the valve. See Figure 26.
Do not use flexible appliance connectors on
any gas connections unless the connector is
C.S.A. approved for outdoor installation, is
marked with BTUH capacity (which must be equal
to or greater than the heater rated input), and the
type of gas (Natural or LP) to be used.
Reduction of gas supply pipe or tubing to the inlet
of the heater gas valve must be made at the valve
only and must match the valve inlet size (3⁄4”).
If more than one appliance is installed on the gas line,
consult the local gas company for the proper gas line size.
Any questions concerning the installation of the
proper gas line size can be directed to Hayward
echnical Service.
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NATURAL GAS
The gas meter must have the capacity to supply
enough gas to the pool heater and any other gas
appliances if they are on the same pipeline (Example:
225 meter = 225,000 BTUH). If doubt exists as to the
meter size, consult local gas utility for assistance.
Hayward will not be responsible for heaters that soot
up due to improper meter and gas line sizing resulting
in improper gas volume.
PROPANE GAS
All Propane gas tanks must be located outdoors
and away from pool/spa structure and in accordance
with the standard for storage and handling of propane
gas, ANSI/NFPA 58 (latest edition) and applicable
local codes. If propane gas tank is installed underground, the discharge of the regulator vent must be
above the highest probable water level.
Propane tanks must have sufficient capacity to
provide adequate vaporization for the full capacity of
the equipment at the lowest expected temperatures.
Consult a propane company expert for correct sizing.
NOTE: Whenever a high-pressure double regulation system is utilized for propane gas, consult a
propane professional for accurate pipe and pressure
sizing. Make sure that 1
large enough to handle the BTUH input listed for the
heater(s) being used.
Hayward will not be responsible for heaters that
soot up due to improper gas line or propane tank siz
ing resulting in improper gas volume.
st
and 2ndstage regulators are
Water piping:
The H-Series heater is designed for use with pool
and spa/hot tub water only, as furnished by municipal
water distribution systems. The warranty does not
cover heater use with mineral water
other non-potable waters.
Do not install any restriction in the water pipe
between heater outlet and pool/spa with the
, sea, salt, or
-
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