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SECTION C: Installation
3
Raypak strongly recommends that this manual be re-
viewed thoroughly before installing your MVB heater.
Please review the General Safety information in Sec-
tion B before installing the heater. Factory warranty
does not apply to heaters that have been improperly
installed or operated. (Refer to the warranty at the back
of this manual.) Installation and service must be per-
formed by a qualified installer, service agency or gas
supplier. If, after reviewing this manual, you still have
questions which this manual does not answer, please
contact the manufacturer or your local Raypak repre-
sentative.
Thank you for purchasing a Raypak product. We hope
you will be satisfied with the high quality and durabil-
ity of our equipment.
Product Receipt
On receipt of your heater it is suggested that you visu-
ally check for external damage to the shipping crate. If
the crate is damaged, make a note to that effect on the
Bill of Lading when signing for the shipment. Remove
the heater from the shipping packaging. Report any
damage to the carrier immediately.
On occasion, items are shipped loose. Be sure that you
receive the correct number of packages as indicated on
the Bill of Lading.
Claims for shortages and damages must be filed with
the carrier by consignee. Permission to return goods
must be received from the factory prior to shipping.
Goods returned to the factory without an authorized
Returned Goods Receipt number will not be accepted.
All returned goods are subject to a restocking charge.
When ordering parts, you must specify the model and
serial numbers of the heater. When ordering under war-
ranty conditions, you must also specify the date of
installation.
Purchased parts are subject to replacement only under
the manufacturer’s warranty. Debits for defective re-
placement parts will not be accepted and will be
replaced in kind only per Raypak’s standard warranties.
Model Identification
The model identification number and heater serial
number are found on the heater rating plate located on
the upper rear jacket panel of the heater. The model
number will have the form H7-2003 or similar
depending on the heater size and configuration. The
letter(s) in the first group of characters identifies the
application (H = Hydronic Heating, WH = Domestic
Hot Water (DHW)). The number which follows identi-
fies the firing mode (7 = electronic modulation). The
second group of characters identifies the size of the
heater (three or four numbers representing the ap-
proximate MBTUH input), and, where applicable, a
letter, indicating the manufacturing series.
Ratings and Certifications
Standards:
• ANSI Z21.13 · CSA 4.9 - latest edition, Gas-Fired
Hot Water Boilers
• CAN 3.1 - latest edition, Industrial and Commercial
Gas-Fired Package Boilers
• ANSI Z21.10.3 · CSA 4.3 - latest edition, Gas Wa-
ter Heaters
• SCAQMD Rule 1146.2
SECTION A
Before Installation