Additional Gas-Fired Heating Option; Introduction - UNTES URTP055 Instructions For Installation, Commisioning, Maintenance And Use

7. ADDITIONAL GAS-FIRED HEATING OPTION

7.1. Introduction

In URTP devices, there is optionally an alternative system to water or electric heating systems with
additional gas fired heating module. One of the fuel types of natural gas should be used for gas fired
modules. These units have condensation technology and are devices with high efficiency.
Information given in the table below about gas fired heating module that used in URTP units.
Description
Flue Type
Nominal Inlet Heat (Min-
Max)(Qn)
Outlet Heat (Min-Max)
(Min)
Max. Condensation*
CO-(O2 Percentage)**
NOx-(O2 Percentage)***
Nox Glass
Flue Press. Drop
Gas Category
Gas Type
Gas Pressure mbar
Gas Connection Dia.
* Given condensation values are for value of %30 capacity of Qn.
**Reference values for G20
***This value according to the EN1020 and G20 for lower heating value of the gas.
Gas categories and values of the countries are given in the table below.
Country
AT, CH, CZ, DK, EE, ES, FI, GB, GR,
HR, IE, IT, LV, NO, PT, RO, SE, SI, SK,
TR
URTP 055 URTP 070
kW 7,6-34,9 7,6-34,9
kW 8,1-33,6 8,1-33,6
% 96,37 96,37
Lt/h 0,9 0,9
ppm
42 mg/kWh- 42 mg/kWh-
24ppm 24ppm
Pa
Pa 90 90
Category
URTP 090 URTP 110
C13-C33-C53-C63
12,4-65 12,4-65
13,4-62,9 13,4-62,9
97,36 97,36
2,1
39 mg/kWh- 39 mg/kWh-
22ppm 22ppm
120
Gas
I2H
39
URTP 140 URTP 180
16,4-82
17,8-80 22,8-97,2
97,62
2,1 3,3
<5
32 mg/kWh- 32 mg/kWh-
18ppm
5
120 120
I2H
G20
20
1"
G20
URTP 230
21-100 21-100
22,8-97,2
97,68 97,68
2,7 2,7
41 mg/kWh-
18ppm 23ppm
120 120
Pressure
20 mbar