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MegaTherm Commercial Pool Heating Boiler
Page 3
SECTION 1.
General Information
1.1 Introduction
This manual provides information for the
installation and operation of MegaTherm model MT
pool heating boilers. It is strongly recommended that
all application and installation procedures be reviewed
completely before proceeding with the installation.
Consult Pentair Commercial Pool and Spa, or your
local sales representative, with any problems or
questions regarding this equipment. Experience has
shown that most problems are caused by improper
installation, not system design.
Some accessory items are shipped in separate
packages. Verify receipt of all packages listed on the
packing slip. Inspect everything for possible damage
upon delivery, and inform the carrier of any shortages
or impairments. Any such claims should be filed with
the carrier. The carrier, not the shipper, is responsible
for shortages and damage to the shipment whether
visible or concealed.
The warranty does not apply to heaters not
installed or operated in accordance with these
procedures. Consult local building and safety codes
before proceeding with work. The installation must
conform to the requirements of the authority having
jurisdiction or, in the absence of such requirements, to
the latest edition of the National Fuel Gas Code; ANSI
Z223.1, National Electrical Code ANSI/NFPA 70. In
Canada, the installation must conform with the latest
edition of CSA-B149.1 requirements.
When required by the authority having
jurisdiction, the installation must conform to
Figure 1. Heater Identification (model nomenclature).
WARNING
The MegaTherm model MT commercial pool
heating boiler must be used on potable water
only. For heating pools containing salt water, a
specially equipped heater must be used;
consult your distributor or factory
representative. The pool heating boiler must be
installed in accordance with the procedures
MODEL
MT-POOL
REVISION
P-PUMP (U.S.)
Q-PUMP (CAN)
HEAT EXCHANGER
C-GLASS LINED/COPPER
N-GLASS LINES/CU-NI
K-BRONZE/COPPER
S-BRONZE/CU-NI
VERSION
1 -8 TUBE
B-10 TUBE
I-INDOOR
E-OUTDOOR
FUEL
N-NATURAL
P-PROPANE
IGNITION
04-SPARK 110V
09-SPARK 24V
11-SPARK 24V
16-STND. PILOT
SIZE
BTU/HR X 1000
0500
0600
0715
0850
0999
1010
1200
1430
1670
1825
C
FIRING MODE
ON/OFF
1 2 3 4 5 6 7 8 9 10 11 12 13 14
American Society of Mechanical Engineers safety
codes for controls and safety devices for automatically
fired heaters No. CSD-1, and in Canada CGA 3.3.
Any modification of the heater, its gas controls, gas
orifices, wiring or drafter diverter may void the
warranty. If field conditions require such
modifications, consult factory.
1.2 Heater Identification
Consult rating plate on the heating boiler. Shown
below is a breakdown of the model nomenclature.
Commercial pool heating boilers are available in two
configurations: an indoor version and an outdoor
version. Outdoor models are not available in Canada.
1.3 Primary/Secondary Pump and Piping
All models are supplied with integrally mounted
pumps. The 1825 models use a 3/4 HP pump and all
other models are supplied with 1/2 HP pumps. These
pumps are sized for the pressure drop through the heat
exchanger and through the bypass piping as shown in
Figure 10.
Any deviations from the arrangement shown may
increase the head on the pump, reduce flow and hinder
performance (see Section 2.7). For spas see Section
3.9.
This piping arrangement and the integral pump
allow hot water to be recirculated to the heater inlet,
thus raising the inlet temperature and greatly reducing
condensation.
1.4 Certifications
All models are design-certified by CSA for
natural or propane gas and conform to ASME Code
requirement for 160 PSI water pressure.
1.5 Engineering Assistance
Consult the factory or distributor regarding any
questions or problems which arise in the specification,
installation or operation of this equipment. An
experienced engineering staff is ready to assist in
assuring the proper performance and application of
this products.