1 introduction, 2 warranty, 3 technical assistance – LAARS Mighty Therm VW-PW (Sizes 175-400) - Installation, Operation and Maintenance Instructions User Manual
Page 3: Mighty therm volume water heaters
Mighty Therm Volume Water Heaters
Page 3
SECTION 1.
General Information
1.1 Introduction
This manual provides installation, operating, and
maintenance instructions for Models VW and PW
Volume Water Heaters, Sizes 175 through 400. Review
all application and installation procedures completely
before proceeding with the installation. Experience has
shown that most operating problems are caused by
improper installation.
The VW-PW heaters are offered in a basic
configuration (see Figure 1). On PW heaters the pump
is factory installed. On VW heaters the pump is field
installed.
1.2 Warranty
The VW-PW heaters are sold with a limited
factory warranty.
Make all warranty claims to an authorized Laars
representative or directly to the factory. Claims must
include the heater serial number and model (this
information can be found on the rating plate),
installation date, and name of the installer. Shipping
costs are not included in the warranty coverage.
Some accessory items are shipped in separate
packages. Inspect everything for damage immediately
upon delivery, and advise the transporter of any
shortages or damage. Any such claims should be filed
with the transporter. The transporter will not accept a
claim from the shipper, Laars.
The warranty does not cover damage caused by
improper installation, operation, or field modification.
1.3 Technical Assistance
Consult Laars or your local wholesaler with any
questions or problems involving the specification,
installation and operation of Laars equipment. An
experienced technical support staff is ready to assist in
assuring the proper performance and application of
Laars products.
Gas Connection
Size
Water
C
C
V
Connect.
U.S. Only
(Indoor)
Vent
Nat.
Propane
Size
A
B
(Outdoor)
Dia.
Size
in.
mm
in.
mm
in.
mm
in.
cm
in.
cm
in.
cm
in.
cm
in.
mm
175
3
/
4
19
1
/
2
13
1
1
/
2
38
18
46
26
1
/
2
67
14
1
/
16
36
23/
2
60
6
152
250
3
/
4
19
1
/
2
13
1
1
/
2
38
22
1
/
2
57
31
79
18
1
/
16
47
24
3
/
4
63
7
178
325
3
/
4
19
1
/
2
13
1
1
/
2
38
26
3
/
4
68
35
3
/
4
91
19
3
/
16
49
25
7
/
8
66
8
203
400
3
/
4
19
1
/
2
13
1
1
/
2
38
31
3
/
4
80
40
1
/
4
102
22
5
/
8
58
26
7
/
8
68
9
229
Note: Dimensions may vary.
Figure 1. General configuration.
Dimensions shown in inches cm.