Install Instructions

Installation & Servicing Instructions Rinnai E-Series

If plate warming is selected consider the following.

This product is a domestic hot water priority boiler; therefore continuous ﬂ ow

in the DHW system (perhaps due to a leaky ﬁ xture) may cause the boiler to

remain in DHW mode — thus preventing the heating system from adequately

functioning. In the event the DHW system has a leak, this feature should be

turned off until this problem can be corrected.

This selection can be done with the ﬁ rst digit of Parameter 36.

Domestic hot water preheat ON = 1x (Factory setting)

Domestic hot water preheat OFF = 2x

See chapter 10 how to change a parameter.

The domestic hot water preheat setting is designed to increase the comfort of the

home owner and reduce water consumption by reducing the wait time for hot water

at the ﬁ xture. This comfort setting will create a slight increase in the gas usage of the

boiler, but this will be offset by the reduction in wasted water at the ﬁ xture.

6.6 Condensate drain pipe

This boiler produces condensate. Condensate must be drained otherwise the boiler

will not function and can cause product or property damage.

The condensation drain pipe should be connected to a drain in the building by means

of an open connection. By this means the possibility of drain gases effecting the boiler

is prevented. The drain connection should have a minimum diameter of 1.3" / 32mm.

Install the condensation drain pipe according to applicable local code.

If the condensate outlet of the boiler is lower than the public sewage system a

condensate pump must be used.

The condensate produced by the boiler has a pH value between 3 and 4.

Install a neutralization unit if required by local code. It is recommended, but not

required to install a condensate neutralizer. Rinnai offers a condensate neutralizer

designed to work with all boiler models. The condensate neutralizer kit comes with

all the necessary ﬁ ttings and mounting material. PVC pipe must be supplied by the

installation contractor.

Rinnai part number: 804000074

Do not drain the condensation water to the external rain gutter because of the

danger of freezing and blockage of the drain.

Before putting the boiler into operation ﬁ ll the condensate trap with 1.27 cups /

300 ml of water. If the boiler will be installed in a high temperature installation

such as baseboard with a supply temperature of 160°F or above, ﬁ ll the

condensate trap with mineral oil instead of water.

Use materials approved by the authority having jurisdiction. In absence of such

authority, PVC and CPVC pipe must comply with ASTM D1785, F441 or D2665.

Cement and primer must comply with ASTM D2564 or F493.

For Canada, use CSA or ULC certiﬁ ed PVC or CPVC pipe, ﬁ ttings and cement.

Periodic cleaning of the condensate disposal system must be carried out. See

the Rinnai Boiler Application Manual for further information and for a piping

diagram for the condensate.

NOTICE