Burnham K50 manual EE Control System, Installation of EO and EE Mounting Bracket and Controls

Models: K50

1 116
Download 116 pages 32.31 Kb
Page 36
Image 36

MS and nuts in the front holes and two #8 SMS in the rear holes.

Connect the two wires from the Q179D pilot to the RA890F Protectorelay Sub base as follows:

a.Ground Wire (200ºC) to the “G” terminal

b.Flame detector wire (Honeywell 1298020) to “F” terminal

c.Thermocouple Lead to L62 Pilotstat.

Wire the pilotstat to the gas valve transformer and to the V88A Gas Valves using the 105ºC wire furnished, see Fig. 46 or 47. If Foot Mounted transformer, connect to J-box using straight connector, BX, straight connector and ½” pipe coupling. Drill holes in Jacket and fasten Transformer with SMS.

Run these wires to outside of jacket on underside of manifold and secure in this position with Wire Ties furnished to provide strain relief. Provide adequate support and strain relief for wiring outside jacket.

4.COMPLETION OF WIRING – Connect power supply fused disconnect switch, service switch, primary and secondary side of gas valve transformer, primary side of ignition transformer, and remaining controls – see Fig.

46 – 50 for wire type and connections to be made. All

wiring must be adequately supported and strain relief provided. All wiring including ground connections must comply with the requirements of the authority having jurisdiction and, in the absence of such, to the National Electrical Code, ANSI NFPA No. 70-2005, or the Canadian Electrical Code, C22.1, whichever is applicable.

EE Control System

1.INSTALLATION OF “EE PANEL”, - Attach the EE mounting bracket with Controls, see Fig. 33, to both Upper and Lower Jacket End Panels. Two holes in each Jacket Panel have been provided for this purpose.

Use two #10-32 x ½” MS and nuts in the front holes and two #8 SMS in the rear holes. If Foot Mounted

Transformer, connect to J-box using straight connector,

BX, straight connector and ½” pipe nipple. Drill holes in Jacket and fasten Transformer using SMS.

2.INSTALLATION OF PILOT PIPING – Install the H91WA-4 pilot solenoid valve in the bottom center knockout of the J-box using conduit fittings furnished, see Fig. 34. Install RV-12LT regulator, (Packed in Gas

Train Carton) and 1/8” tee in the ¼” OD pilot tubing as shown in Fig. 34.

36

Fig. 33

INSTALLATION OF EO AND EE MOUNTING BRACKET AND CONTROLS

Page 36
Image 36
Burnham K50 manual EE Control System, Installation of EO and EE Mounting Bracket and Controls