REPRINTED AND COMB BOUND. INSTALLATION & SERVICING INSTRUCTIONS. ZB 7-28 R 28 HE SYSTEM. R28 HE SYSTEM. THIS MANUAL IS PRINTED ONTO 80GSM PAPER AND HAS A FRONT COVER AND BACK COVER OF 210 GSM CARD. ALSO I CAN LEAVE AS LOOSE PAPER (IE NOT COMB BOUND) IF YOU WISH TO HOLE PUNCH AND PLACE IN A FOLDER OF YOUR OWN.
