Middleby Marshall PS540 Section Installation, Utility Rough-Indimensions And Positioning

SECTION 2

INSTALLATION

UTILITY ROUGH-IN DIMENSIONS AND POSITIONING

FOR PS540-SERIES OVENS

WARNING

DO NOT USE CONDUIT OR GAS LINE FOR GROUND CONNECTION.

CAUTION

IT IS REQUIRED THAT THE OVEN BE PLACED UNDER A VENTILATION

5

ON 6

OFF

2 3

1

2 24" 610mm

6

ON

27"

686mm

HOOD FOR ADEQUATE AIR SUPPLY AND VENTILATION.

2

OFF

3

ELECTRIC AND GAS SUPPLY TO BE

PROVIDED BY CUSTOMER

ELECTRICAL SAFETY SWITCH

15 Amp circuit breaker / fused disconnect switch with lockout/tagout electrical shutoff for each oven. Wire each oven separately.

ELECTRICAL SPECIFICATIONS

DOMESTIC or EXPORT: 208-240V blower motor, 1 phase, 4.1 Amp draw, 50/60 Hz, 208-240V control circuit, 2 poles, 3-wire system per oven (2 hot, 1 grd).

Do NOT use conduit for ground.

GAS RATING

Model PS540 is 110,000 BTU/hour, 116.0 mJ/h (27,720 kcal), 32.2 kW/hr.

MINIMUM GAS METER RATING

450 ft3/hour (12.6m3/h) for 1 or 2 ovens;

Add 180 cu. ft./hr (5.1 m3/h) for each additional oven.

Minimum rating does not take other gas appliances into consideration. Gas consumption varies at each site. Total BTU/hr (kcal/hr) must be calculated during high flame operation for each appliance to determine if the meter needs to be larger.

MINIMUM GAS PIPE SIZE

Natural: 2″ (51mm) ID for 1, 2, or 3 ovens with runs up to 200 ft. (61m).

Must be a dedicated line.

Runs over 200 ft, (61m) consult factory.

Propane: 2″ (51mm) ID for 1, 2, or 3 ovens with runs up to 200 ft. (61m).

Must be a dedicated line.

Runs over 200 ft, (61m) consult factory.

2
	4	24"
		610mm
13-1/2"
343mm

Suggested dimensions are shown; utility code requirements supersede any factors shown.

Figure 2-9. Typical PS540-Series Oven(s)

Installation

GAS SAFETY VALVE

A3/4″ (19mm) ID (inner diameter) full-flow,gas shutoff valve. A separate connection and valve must be provided for each oven, as shown in Figure 2-9.

REQUIRED GAS SUPPLY PRESSURE

Natural: 6″ to 12″ water column (13.8 to 29.9 mbar)

Propane: 11.5″ to 12″ water column (28.7 to 29.9 mbar)

SUGGESTED

If space permits, electric and gas service should be located near the control console end of the oven(s) to allow convenient access to safety switches and valves.

USER SUPPLIED ITEMS (Figure 2-9)

ITEM DESCRIPTION

12″ (51mm) × 2″ (51mm) × 3/4″ (19mm) TEE

2 3/4″ (19mm) × 3″ (76mm) NIPPLE

3 3/4″ (19mm) FULL FLOW GAS SHUTOFF VALVE

4 2″ (51mm) × 3/4″ (19mm) 90° REDUCER ELBOW

5 2″ (51mm) ID GAS SUPPLY PIPE LINE - NATURAL GAS

615 AMP TOGGLE SWITCH - 2 POLE for GAS

17