AccuTemp Evolution N61201D060 handleiding

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AccuTemp

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Handleiding

Installation Manual I Installation

MP4010-1809

3.10 Ventilation

The steamer produces water vapor along with the ex-

tremely hot products of combustion.

The ﬂue should not be obstructed or blocked in any way.

Any in-ﬁeld modiﬁcations made without written authorization

from AccuTemp Products, Inc. will void all written and oral war-

ranties.

DO NOT connect Drain or Vent lines on multiple appli-

ances. Each appliance should have its own dedicated drain and

vent.

The steam vent is provided with a 45 ° elbow. The steam

vent must not be obstructed. An obstruction will prevent cor-

rect operation of the steamer.

Applicable federal, state and/or local plumbing codes will

dictate when and if a hood is required.

When installing a gas ﬁred appliance in any location,

provisions should be made for adequate make up air.

Additionally the appliance should not be positioned in locations

where the appliance is subject to drafts.

Do not permit fans to blow at the appliance, and wherever

possible, avoid open windows near to the sides and back of the

appliance. Check wall fans to make sure air cross currents are

not created in the room.

3.10.1 Steam Vent Extension

When adding anything to the vent on the Evolution steamer,

care must be taken to prevent doing anything that puts a back

pressure on the steamer. Back pressure on the steamer may

interfere with the pressure switch that controls the heaters.

When the pressure switch senses pressure in the steamer is 0.5”

of water or more, it turns the heaters o. Therefore, anything

on the vent putting a pressure of just 0.5” water column on the

steamer turns the heaters o and prevents them from coming

on again until the pressure is relieved. Intermittent operation of

the steamer can often be traced to restrictions, low spots or a

plugged condensate drain in the vent ﬁtting assembly.

To prevent putting a back pressure on the steamer, vent piping

should have no restrictions and no low spots where water can

accumulate. Ventilation piping can be directed upwards toward

hoods or downward towards ﬂoor drains. Slightly dierent

approaches are required for each application.

Extension Sloping Upward (FIGURE 12)

1. Use nominal ¾” copper, brass or stainless steel to prevent

ﬂow restrictions. Larger inside diameter (ID) can be used

also

2. Pipe should slope upward a 1/4” per foot from the steamer

vent toward a vent hood to allow water condensing in it to

run back to the steamer and down the drain line. Minimum

recommended slope is ¼” per foot of hose length.

3. Use rigid pipe rather than ﬂexible tubing or hose to prevent

dips or sags in the pipe that may collect water. A puddle

of water in the piping just ½” deep will cause the steamer

to malfunction. Recommended pipe materials are rigid ¾”

copper tubing (7/8” OD) or brass/ 18-8 stainless steel pipe

(3/4 NPT or larger). Pipe hangers or pipe supports should

be used every six feet to prevent long runs from sagging.

4. A pipe union should be installed next to the steamer to

permit the vent to be easily disconnected. This allows the

steamer to be easily moved for servicing.

5. Total length of extended vent piping should not exceed 15

feet.

FIGURE 12

18” - 36” Long = 3/4” Diam-

eter brass pipe (both ends

threaded)

45 ° Elbow = 3/4” Diameter

brass pipe (both ends female)

6” - 10” Long - 3/4” Diameter

brass pipe (both ends threaded

male)

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