Reznor LDAP Unit Installation Manual - Manual (Page 6)

Form I-LDAP, P/N 207733R6, Page 6
3.0 Uncrating and
Preparation
If the heater is being installed at an elevation above 2000 ft (610M), the input
rate will have to be derated. This is done by adjusting the outlet pressure of
the gas valve and can only be done after the heater is in operation. Follow the
instructions in Paragraph 6.1.
If the heater is being installed at an elevation above 6000 ft (1830M), the heat
section pressure switch(es) will need to be changed. If ordered with the heater
as Option DJ20, the pressure switch is shipped separately.
3.3 Preparing for
High Altitude
Operation
Pressure Switch
3.1 Uncrating and Inspection
This heater was test operated and inspected at the factory prior to crating and
was in operating condition. If the heater has incurred any damage in shipment,
document the damage with the transporting agency and contact an authorized
Reznor Distributor. If you are an authorized Distributor, follow the FOB freight
policy procedures as published Reznor, LLC.
Check the rating plate for the gas specifications and electrical characteristics of
the heater to be sure that they are compatible with the gas and electric supplies
at the installation site.
2.0 Heater Location (cont’d)
2.5 Sound
Data
Sound Chart - Model LDAP
Model
LDAP
Size
Distance
20 ft (6.1M) 25 ft (7.6M) 30 ft (9.1M) 35 ft (10.7M) 40 ft (12.2M)
db Pa µbar db Pa µbar db Pa µbar db Pa µbar db Pa µbar
400 69 0.058 0.580 65 0.037 0.371 62 0.026 0.258 60 0.019 0.189 57 0.015 0.145
800 72 0.080 0.800 68 0.051 0.512 65 0.036 0.356 62 0.026 0.261 60 0.020 0.200
1200 74 0.100 1.000 70 0.064 0.640 67 0.044 0.444 64 0.033 0.327 62 0.025 0.250
µbar = microbar Pa = Pascal
High Altitude Unit Pressure Switch(es)
Size Qty
Start-up
Cold
Equilibrium
Hot
Setpoint
OFF
Setpoint
ON
Label
Color
Switch
Part No.
Differential Pressure (in. w.c.)
400 1 1.75 to 1.45 1.00 to 0.80 0.60 0.78 Lt. Blue 197029
800 2 1.85 to 1.55 1.05 to 0.85 0.60 0.78 Lt. Blue 197029
1200 3 2.35 to 1.85 1.50 to 0.95 0.60 0.78 Lt. Blue 197029
3.2 Preparing for
Installation
IMPORTANT: The crate bottom should be removed after the heater is
lifted. Shipping brackets are attached with cabinet screws. When remov-
ing shipping brackets, re-insert ALL screws into the cabinet.
Read this booklet and become familiar with the installation requirements of
your particular heater. If you do not have knowledge of local requirements,
check with the local gas company or any other local agencies who might have
requirements concerning this installation. If the installation is above 2000 ft
(610M) elevation, follow the instructions in Paragraph 3.3 and Paragraph 6.1.
Before beginning, make preparations for necessary supplies, tools, and man-
power. Locate the hardware kit supplied with the heater. The plastic bag con-
tains spring nuts, hex nuts, “U”-shape fittings, lock washers, louvers, and com-
pression springs.
Be sure that all shipped-separate options that were ordered are at the instal-
lation site. Shipped-separate items could include a vent cap, louvers, nozzles,
hanger kit, a manual shutoff valve, a thermostat, multiple heater controls, high
temperature tape, and/or a high altitude kit.