Winterwarm Qwikshift QSG User manual

EN - v2.11 / 01-2023
Installation manual
Air heater
Type QSG

Contents
1. Introduction 4
1.1. Symbols used in this manual 4
1.2. Warranty 4
2. Safety instructions 5
2.1. Installation 5
2.2. Use 5
2.3. Maintenance & Cleaning 5
2.4. Children and vulnerable users 5
3. Technical specifications 6
3.1. Performance 6
3.2. Gas types 7
3.3. Dimensions 7
4.1. Preparation 8
4.2. Positioning the air heater 8
4.3. Gas type & connection 9
4.4. Electrical connection 9
4.5. Room thermostat 9
4.6 Heat pump 10
4.7 Condensate drain rear side hybrid heater 10
4.8 Water connections hybrid heater 11
5. Flue systems 13
5.1. Flue terminals 13
5.2. Flue length (max.) 14
5.3. Condensate discharge system 14
5.4. Installation of the flue terminal 15
6. Operating the air heater 17
6.1. Burner cycle 17
6.2. Minimum firing time 17
6.3. Delta-T-regulation 18
6.4. Summer ventilation 18
6.5. Overheating protection 18
6.6. Flue passage check 18
7. Commissioning the air heater 18
7.1. Adjusting the settings 18
7.2. Commissioning the air heater 19
8. Combustion settings 20
8.1. Adjusting the burner settings 20
8.2. Converting to another gas type 20
9. Troubleshooting 21
9.1. Volatile lock outs 21
9.2. Temporary errors 21
9.3. Warnings 22
9.4. Instructions 22
9.5. Further troubleshooting 23
10. Maintenance 24
10.1.Preparation 24
10.2.Basic maintenance 24
10.3.Maintenance of the burner unit 24
10.4.Maintenance in dusty environments 25
11. Electrical wiring diagram 26
13. Disposal and recycling 29
14. Declaration of conformity 30

4
1. Introduction
This manual is intended for the gas, electrical and
mechanical installer.
This document gives instructions on how to use and
maintain the air heater. It is most important to follow the
instructions in this document for safe operation of this air
heater.
It is important to read this document before starting the
installation process. Store this document close to the air
heater for quick reference.
1.1. Symbols used in this manual
DANGER! Indicates a dangerous situation that would lead
to death or severe injury.
WARNING! Indicates a potentially dangerous situation
that could lead to death, severe injury or serious product
damage.
CAUTION! Indicates a potentially dangerous situation
that could lead to injury or product damage.
NOTICE Indicates important information that is not
directly related to safety.
1.2. Warranty
NOTICE Using, installing or maintaining this air heater in
any other way than described in this manual may cause
damage that voids the warranty.
NOTICE Failing to follow the safety instructions in this
manual can lead to damage to the air heater or the
installation and void the warranty.

5INSTALLATION MANUAL AIR HEATER TYPE QSG
2. Safety instructions
Always follow the safety instructions in this chapter when
installing, using or performing maintenance on this air
heater:
2.1. Installation
CAUTION! This air heater must be installed and
maintained by an authorized, qualified and competent
installer, using calibrated equipment.
NOTICE This air heater must be installed and maintained
in accordance with this manual, national and local building
regulations and local health and safety regulations.
2.1.1. Protection against dust
CAUTION! Do not use the air heater in a very dusty
environment. Dust may accumulate and cause a defect of
the heater. This is also the case for the room thermostat.
2.1.2. Temperature
CAUTION! Do not install the heater in places where the
temperature can rise above 35°C. Higher temperatures
cause the internal components to degrade much faster.
NOTICE Air heaters installed in very cold environments
may form condensate in the flue system. Make sure a
condensate discharge is installed.
Restrictions in use:
Operating pressure : max. 5 bar.
Water temperature : max. 100°C; min 4°C.
(risk of freezing!)
Environmenral temperature : max. 40°C; min 4°C.
(risk of freezing!)
WARNING! In case of freezing, the copper tubes of the
heat exchanger might get damaged, causing the heat
exchanger to leak. This is not covered by the warranty!
2.1.3. Corrosive vapours
WARNING! Do not install the air heater in areas that
contain any corrosive or explosive vapours. Corrosive
vapours (e.g. containing Chlorine) that are sucked into the
air intake will cause corrosion of the heat exchanger and a
leakage of condensate and flue gas. This is also the case
for the room thermostat.
2.2. Use
CAUTION! Make sure the area around the air heater is
dry when performing maintenance on the air heater.
CAUTION! Always close the doors and inspection hatches
of the air heater, except when adjusting and checking the
appliance.
2.2.1. Condensate discharge
CAUTION! This air heater is a condensing heater. A
condensate water discharge system must be installed
according to local regulations. Never block this discharge
system. In winter conditions, make sure the condensate
discharge does not freeze.
2.3. Maintenance & Cleaning
Frequent maintenance and cleaning of the air heater is
necessary to ensure safe and proper operation. Failure
to do so could lead to damage to the heater or its
surroundings and void the warranty.
2.3.1. Protection from water (IP class)
WARNING! Never use water when cleaning electrical
parts.
This air heater is not waterproof and has an IP20B
classification.
WARNING! Do not expose the air heater to rain, spray or
dripping water.
2.4. Children and vulnerable users
WARNING! This air heater can be used by children aged
8 years and above and by persons with reduced physical,
sensory or mental capabilities or lack of experience and
knowledge, if they are supervised or instructed concerning
use of the appliance in a safe way and understand the
hazards involved.
WARNING! Children shall not play with the air heater.
WARNING! Children shall not clean and maintain this air
heater without supervision.