Lochinvar Armor X2 AWL1500, Руководство по установке и эксплуатации

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37
Use two wrenches when tightening
gas piping at water heater (FIG. 7-2),
using one wrench to prevent the
water heater gas line connection from
turning. Failure to support the water
heater gas connection pipe to prevent
it from turning could damage gas line
components.
USE BACK UP WRENCH TO
PREVENT PIPE FROM ROTATING
Figure 7-2 Inlet Pipe with Backup Wrench
Natural gas supply pressure requirements
1. Pressure required at the gas valve inlet pressure port:
• Maximum 14 inches w.c. (3.5 kPa) with no flow
(lockup) or with water heater on.
• Minimum 5 inches w.c. (1.25 kPa) for 1.0 models with gas
flowing (verify during water heater startup).
• Minimum 4 inches w.c. (.99 kPa) for 1.3 - 1.5 models with
gas flowing (verify during water heater startup).
2. Install 100% lockup gas pressure regulator in supply line
if inlet pressure can exceed 14 inches w.c. (3.5 kPa) at any
time. Adjust lockup regulator for 14 inches w.c. (3.5 kPa)
maximum.
Propane Gas:
Pipe sizing for propane gas
1. Contact gas supplier to size pipes, tanks, and 100% lockup
gas pressure regulator.
Propane Supply Pressure Requirements
1. Adjust propane supply regulator provided by the gas
supplier for 14 inches w.c. (3.5 kPa) maximum pressure.
2. Pressure required at gas valve inlet pressure port:
• Maximum 14 inches w.c. (3.5 kPa)with no flow (lockup)
or with water heater on.
• Minimum 8 inches w.c. (1.9 kPa) with gas flowing (verify
during water heater startup).
Maximum inlet gas pressure must not
exceed the value specified. Minimum
value listed is for the purposes of input
adjustment.

WARNING

WARNING
NOTICE

WARNING
Ensure that the high gas pressure regulator
is at least 10 feet (3 m) upstream of the
appliance.
Check water heater rating plate to determine
which fuel the water heater is set for.
Armor X2 water heaters CAN NOT be field
converted. Failure to comply could result in
severe personal injury, death, or substantial
property damage.

WARNING
Check water heater rating plate to
determine which fuel the water heater is set
for. Armor X2 water heaters CANNOT be
field converted. Failure to comply could
result in severe personal injury, death, or
substantial property damage.
Natural gas:
Pipe sizing for natural gas
1. Refer to Table 7A for pipe length and diameter. Based on
rated water heater input (divide by 1,000 to obtain cubic
feet per hour).
a. Table 7A is only for natural gas with specific gravity
0.60 inches, with a pressure drop through the gas
piping of 0.5 inches w.c.
b. For additional gas pipe sizing information, refer to
ANSI Z223.1 (or B149.1 for Canadian installations).
7
Gas connections
(continued)
Installation & Operation Manual