LAARS Mighty Therm2 MT2P (Sizes 500–2000 MBTU/h) - Install and Operating Manual - Manual (Page 3)

MT2P Pool Heater Page 3
SECTION 1.
General Information
In the Commonwealth of Massachusetts, this
appliance must be installed by a licensed plumber or
gas fitter.
WARNING
The MT2P pool heater must be installed in
accordance with the procedures detailed in this
manual, or the Laars Heating Systems warranty
may be voided. The installation must conform to the
requirements of the local jurisdiction having authority,
and, in the United States, to the latest edition of the
National Fuel Gas Code, ANSI Z223.1/NFPA54. In
Canada, the installation must conform to the latest
edition of CAN/CGA-B149.1, Natural Gas Installation
Code or CAN/CGA-B149.2, Propane Gas Installation
Code, and/or local codes. Where required by the
authority having jurisdiction, the installation of
MT2P appliances must conform to the Standard for
Controls and Safety Devices for Automatically Fired
Boilers, ANSI/ASME CSD-1. Any modifications to
the boiler, its gas controls, or wiring may void the
warranty. If field conditions require modifications,
consult the factory representative before initiating
such modifications.
1.1 Introduction
This manual provides information necessary for
the installation, operation, and maintenance of Laars
Heating Systems MT2P copper tube pool heaters. Read
it carefully before installation.
All application and installation procedures
should be reviewed completely before proceeding with
the installation. Consult the Laars Heating Systems
factory, or local factory representative, with any issues
or questions regarding this equipment. Experience
has shown that most operating issues are caused by
improper installation.
The MT2P appliance is protected against over
pressurization. A pressure relief valve is fitted to all
appliances. It is installed on the outlet header, at the
water outlet of the appliance.
IMPORTANT: The inlet gas pressure to the appliance
must not exceed 13" W.C. (3.2kPa).
All installations must be made in accordance
with the 1). American National Standard Z223.1/
NFPA54-Latest Edition “National Fuel Gas Code”
or 2). CAN/CGA 1-B149 “Installation Codes for Gas
Burning Appliances and Equipment” and with the
requirement of the local utility or other authorities
having jurisdiction. Such applicable requirements take
precedence over the general instructions contained
herein.
All electrical wiring is to be done in accordance
with the local codes, or in the absence of local codes,
with: 1). The National Electrical Code ANSI/NFPA No.
70-latest Edition, or 2). CSA STD. C22.1 “Canadian
Electrical Code - Part 1”. This appliance must be
electrically grounded in accordance with these codes.
1.2 Model Identification
Consult the rating plate on the unit. The following
information describes the model number structure.
Model Character Designation
1-3 Model Series Designation
M T 2 = Mighty Therm 2
4 Usage
P = Pool Heater
5-8 Size
0 5 0 0 = 500,000 BTU/h input
0 7 5 0 = 750,000 BTU/h input
1 0 0 0 = 999,000 BTU/h input
1 2 5 0 = 1,250,000 BTU/h input
1 5 0 0 = 1,500,000 BTU/h input
1 7 5 0 = 1,750,000 BTU/h input
2 0 0 0 = 1,999,000 BTU/h input
9 Fuel
N = Natural Gas
P = Liquid Propane
10 Altitude
A = 0-10,000 feet
11 Location
C = Indoor and Outdoor
12 Firing Mode
C = On-off
13 Revision
1 = First version
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
M T 2 P A C C 1
SERIES
M T 2
USAGE
P
SIZE
0 5 0 0
0 7 5 0
1 0 0 0
1 2 5 0
1 5 0 0
1 7 5 0
2 0 0 0
FUEL
N
P
ALTITUDE
A
FIRING
MODE
C (ON/OFF)
LOCATION
C
REVISION
1
HEAT
EXCHANGER
B
C
N
P
OPTIONS
CODE
X
J
PUMP
OPTIONS
N
B