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Mechanical, 1 gas piping and pressures, 1 gas supply and connections – Reznor B Unit Installation Manual User Manual

Page 13

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Form I-F/B, P/N 98126 R21, Page 13

FIGURE 10 - Four-Point

Suspension with Swivel

Connections

(Applies to both fan

and blower models)

Four Optional Swivel

Connectors for hanging

from 1" pipes

5) Special Four-Point Suspension with Nearly Equal Loading (applies to

Model B 165-400 only) - Option CK19 (See FIGURE 11)

This suspension option is designed for special applications when a suspension system

is needed that has nearly equal loading at all four suspension points. Use this option in

installations with spring isolation designed for seismic protection or when threaded rod

hangers are longer than twelve inches.
Suspension points change with the addition of the hanger bars in kit Option CK19; see

FIGURE 11.

FIGURE 11 - Suspension Dimensions for

Model B Size 165-400 Heater with Hanger Kit

Option CK19

A (Standard suspension points/hanger bars)

B (Suspension points with Option CK19)

1-3/8

(35)

1-3/8

(35)

Front View of Model B with Option CK19

Airflow

Side View of Model B with Option Ck19

17-3/8 (441)

18-3/4 (476)

19-15/32 (495)

4-7/8

(124)

Size

A

B

A

B

Dimensions - inches Dimensions - mm

165

18-5/8

15-7/8

473

403

200

21-5/8

18-7/8

549

479

250

27-1/8

24-3/8

689

649

300

27-1/8

24-3/8

689

649

400

35-3/8

32-5/8

899

829

includes two hanger bracket assemblies, four swivel hanger connector assemblies and

four lock washers.

4) Four-Point Swivel Connectors - Option CK10 (See FIGURE 10)

This option package is used on a heater that is already equipped with four-point sus-

pension to adapt it for suspension from four 1", threaded, stationary pipes. The kit

includes four swivel hanger connector assemblies and four lock washers.

6. Mechanical

6.1 Gas Piping and

Pressures

6.1.1 Gas Supply and Connections

WARNING: This appliance is equipped for a maximum gas

supply pressure of 1/2 psi, 3.5 kPa, or 14 inches water column.

Supply pressure higher than 1/2 psi requires installation of

an additional service regulator external to the unit.

PRESSURE TESTING SUPPLY PIPING

Test Pressures Above 1/2 PSI: Disconnect the heater and manual valve from the gas

supply line which is to be tested. Cap or plug the supply line.
Test Pressures Below 1/2 PSI: Before testing, close the manual valve on the heater.

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