Operator`s manual

PUREHEAT™ HYDRONIC AIR HEATER OPERATOR’S MANUAL – SECTION 4

4.2.2.1 Installation

(Refer to Appendix A-24)

1. Remove the trailer enclosure lower panel located

below the trailer's left side door adjacent to the

fender (to provide unrestricted access to the Burner

mounting plate on the Pureheat™ Hydronic Air

Heater). (Photo 4-3)

2. Verify that the gasket is properly positioned on the

mounting flange and Burner blast tube.

3. Insert the blast tube into the hydronic heater Burner

mounting plate and attach with the four bolts which

have been supplied. The Burner should be oriented

with the Power Flame Model JR30A-12 label

oriented right side up.

4. Using the supplied 1¼ in. x

in. bolts, washers and nuts, install the Burner support bracket on

the trailer floor below the Burner. Extend the adjusting rod such that the square pad firmly

contacts the Burner support flange. Tighten the jam nut to keep the support rod from backing off.

5. Reinstall the enclosure panel next to the fender.

6. Attach the 3-pin Quick-Connect Burner power cord leading from the Main Control Panel to the

connection socket located just behind the blue Honeywell™ Burner control.

7. Attach the gas train at the pipe union (secure to gas train mounting bracket), with the horizontal

portion of the gas train extending toward the tongue of the trailer. Do

not use pipe dope on this

joint

8. Attach the 2-pin Quick-Connect power cord leading from the Burner control to the electrical

junction box mounted on the gas train.

9. Connect the 90º end of the braided pilot gas line to the fitting provided on the left side of the gas

train. do

not use pipe dope on this joint.

10. Verify that the two ball valves and the pilot valve on the gas train are turned OFF.

11. Attach the 36 in. x ¼ in. poly vent hose to the main gas pressure regulator vent and route it

outside through the 5 in. (127 mm) square access panel in the floor.

12. Attach the 17 in. x ¼ in. poly vent hose to the pilot pressure regulator and route it outside through

a slot in the trailer floor along the left side of the trailer.

13. Attach the NG or LP gas supply line to the main gas inlet fitting at the left side of the gas train.

This gas line should enter the trailer through the 5 in. (127 mm) square access panel in the floor

of the trailer.

4.2.2.2 Setup

1. Open the top Burner air inlet damper 100 percent. The bottom air inlet damper should be

completely closed. This initial setting will be fine tuned later.

2. Follow procedures located in Sections 3.1.1.1 through 3.1.1.4 to complete Burner adjustment.

Do not turn on the gas at this time.

NOTE: The gas supply line must be sized such that it is capable of providing a minimum of 860 CFH NG

(or 344 CFH LP vapor) at 5 to 14 in. water column pressure.

4-3